Listed below are an additional 3856 names recognized by various authorities for some of the plants included on NameThatPlant.net, as of 3/10/25. A plus sign indicates that the source further divides that species into varieties or subspecies.
Click the scientific name to link to information and (maybe) pictures!
×Crataemespilus canescens — Stern's Medlar, Stearn's Medlar
Abies nordmanniana — Nordmann Fir, Caucasian Fir
Abutilon abutilon — Velvetleaf, Indian Mallow, Butterprint
Acacia farnesiana — Common Sweet Acacia, Huisache
Acacia minuta — Common Sweet Acacia, Huisache
Acalypha virginica var. gracilens — Slender Threeseed Mercury, Slender Copperleaf, Shortstalk Copperleaf
Acalypha virginica var. rhomboidea — Common Threeseed Mercury, Rhombic Copperleaf
Acalypha virginica var. virginica — Virginia Threeseed Mercury, Virginia Copperleaf, Shortstalk Copperleaf
Acanthoxanthium spinosum — Spiny Cocklebur
Acer barbatum — Southern Sugar Maple, Florida Maple
Acer drummondii — Drummond’s Maple, Swamp Red Maple, Drummond’s Red Maple
Acer negundo var. violaceum — Eastern Box Elder, Ash-leaved Maple, River Maple
Acer pseudo-platanus — Sycamore Maple, Planetree Maple
Acer saccharum var. floridanum — Southern Sugar Maple, Florida Maple
Acer saccharum var. leucoderme — Chalk Maple, Small Chalk Maple, White-bark Maple
Acer saccharum var. nigrum — Black Maple
Acer tataricum ssp. ginnala — Amur Maple
Acerates floridana — Longleaf Milkweed, Savanna Milkweed
Acerates hirtella — Barrens Milkweed, Green Milkweed, Prairie Milkweed
Acerates viridiflora — Glade Milkweed, Green Milkweed
Acetosella acetosella — Sheep Sorrel, Red Dock, Sourgrass, Field Sorrel
Acetosella vulgaris ssp. pyrenaica — Sheep Sorrel, Red Dock, Sourgrass, Field Sorrel
Achillea borealis — Eastern Yarrow, Eastern Thousandleaf
Achillea lanulosa — Eastern Yarrow, Eastern Thousandleaf
Achyranthes japonica — Japanese Chaff-flower
Achyranthes philoxeroides — Alligator-weed
Acmispon americanus var. helleri — Carolina Prairie-trefoil
Acnida alabamensis — Southern Water-hemp, Southern Amaranth, Careless
Acnida cuspidata — Southern Water-hemp, Southern Amaranth, Careless
Aconitum uncinatum ssp. muticum — Appalachian Blue Monkshood, Eastern Blue Monkshood
Aconogonon polystachyum — Himalayan Knotweed, Kashmir Plume, cultivated knotweed
Actaea alba — Doll's-eyes, White Baneberry, White Cohosh
Actaea racemosa var. dissecta — Common Black Cohosh, Early Black Cohosh, Black Snakeroot, black bugbane
Actaea racemosa var. racemosa — Common Black Cohosh, Early Black Cohosh, Black Snakeroot, black bugbane
Actinidia chinensis — Green Kiwi-fruit, Chinese Gooseberry
Actinidia deliciosa — Green Kiwi-fruit, Chinese Gooseberry
Actinomeris alternifolia — Common Wingstem
Actinospermum angustifolium — Sandhill Honeycomb-head, Sandhill Balduina
Acuan illinoense — Illinois Bundleflower, Prairie Mimosa, Common Bundleflower
Adenoplea lindleyana — Lindley's Butterflybush
Adiantum aleuticum — Northern Maidenhair Fern
Adicea pumila — Greenfruit Clearweed, Richweed, Coolwort, Canadian Clearweed
Aegopodium podagraria var. variegatum — Goutweed, Bishop's Weed
Aesculus glabra — Ohio Buckeye, Fetid Buckeye, Chalky Buckeye
Afzelia cassioides — Senna Seymeria, Yaupon Black-senna
Afzelia pectinata ssp. pectinata — Comb Seymeria, Combleaf Black-senna, Yaupon Black-senna, Florida Black-senna
Agalinis acuta — Tenlobe Gerardia, Sandplain Agalinis, Tenlobe False Falseglove
Agalinis purpurea var. purpurea — Purple Gerardia, Common Agalinis, Purple False Foxglove
Agalinis purpurea var. purpurea — Wand Gerardia, Wand Agalinis, Pine-barren False Foxglove
Agalinis tenuifolia var. leucanthera — Common Gerardia, Slenderleaf Agalinis, Slender False Foxglove, Slender Gerardia
Agalinis tenuifolia var. macrophylla — Common Gerardia, Slenderleaf Agalinis, Slender False Foxglove, Slender Gerardia
Agalinis tenuifolia var. polyphylla — Common Gerardia, Slenderleaf Agalinis, Slender False Foxglove, Slender Gerardia
Ageratina aromatica var. aromatica — Small-leaved White Snakeroot, Aromatic Snakeroot, Wild-hoarhound, Small White Snakeroot
Ageratina aromatica var. incisa — Small-leaved White Snakeroot, Aromatic Snakeroot, Wild-hoarhound, Small White Snakeroot
Agrimonia bicknellii — Downy Agrimony
Agrimonia platycarpa — Low Agrimony, Small-fruited Agrimony
Agrostis alba — Black Bentgrass, Redtop Bentgrass, Redtop
Agrostis alba — Creeping Bentgrass
Agrostis hiemalis — Ticklegrass, Small Bentgrass, Hairgrass, Winter Bentgrass
Agrostis palustris — Creeping Bentgrass
Agrostis perennans var. elata — Coastal Bog Bentgrass
Agrostis perennans var. perennans — Autumn Bentgrass, Upland Bentgrass, Upland Bent
Agrostis semiverticillata — Water Bent-grass, beardless rabbitsfoot grass
Agrostis verticillata — Water Bent-grass, beardless rabbitsfoot grass
Agrostis viridis — Water Bent-grass, beardless rabbitsfoot grass
Aira caespitosa — Tufted Hairgrass
Aira caryophyllaea — Silver Hairgrass
Aira caryophyllea var. capillaris — Elegant Hairgrass, Annual Silver Hairgrass
Aira elegantissima — Elegant Hairgrass, Annual Silver Hairgrass
Aira flexuosa — Appalachian Hairgrass, Crinkled Hairgrass, Common Hairgrass, Wavy Hairgrass
Albizzia julibrissin — Mimosa, Silktree, Albizia
Aleurites fordii — Tung-oil Tree
Alliaria officinalis — Garlic Mustard, Hedge Garlic
Allionia nyctaginea — Heart-leaved Umbrella-wort, Heartleaf Four-o’clock
Allium ampeloprasum var. ampeloprasum — Wild Leek, Yorktown Onion, Elephant Garlic
Allium ampeloprasum var. atroviolaceum — Wild Leek, Yorktown Onion, Elephant Garlic
Allium arenicola — Mobile Onion
Allium microscordion — Mobile Onion
Allium mutabile — Mobile Onion
Allium tricoccum var. burdickii — Narrowleaf Ramps, White Ramps
Allium tricoccum var. tricoccum — Red Ramps, Rampscallions, Wild Leek
Allium vineale ssp. compactum — Field Garlic, Wild Onion, Onion-grass, Crow Garlic
Alnus alnobetula — Green Alder, Mountain Alder
Alnus mitchelliana — Green Alder, Mountain Alder
Alnus viridis var. crispa — Green Alder, Mountain Alder
Alopecurus ramosus — Carolina Foxtail Grass
Alsine aquatica — Water-chickweed, Giant Chickweed, Water Mouse-ear
Alsine longifolia — Lesser Stitchwort, Grassleaf Starwort, Common Stitchwort
Alsine media — Common Chickweed
Alsine pubera — Star Chickweed, Giant Chickweed, Great Chickweed, Common Starwort
Alsine tennesseensis — Tennessee Starwort
Amaranthus gracilis — Slender Amaranth, Tropical Green Amaranth
Amarolea americana — Devilwood, Wild Olive
Ambrina ambrosioides — Mexican-tea, Epazote
Ambrina ambrosioides — Wormseed, Epazote
Ambrosia elatior — Annual Ragweed, Common Ragweed, Hogweed
Ambrosia glandulosa — Annual Ragweed, Common Ragweed, Hogweed
Ambrosia monophylla — Annual Ragweed, Common Ragweed, Hogweed
Amelanchier alabamensis — Downy Serviceberry, Sarvisberry
Amelanchier arborea var. alabamensis — Downy Serviceberry, Sarvisberry
Amelanchier arborea var. austromontana — Downy Serviceberry, Sarvisberry
Amelanchier canadensis var. canadensis — Eastern Serviceberry, Canadian Serviceberry
Amelanchier canadensis var. obovalis — Coastal Plain Serviceberry, Pocosin Shadbush, Coastal Serviceberry
Amelanchier oblongifolia — Eastern Serviceberry, Canadian Serviceberry
Amorpha curtissii — False Indigo, Tall Indigo-bush, False Indigo-bush
Amorpha cyanostachya — Savanna Indigo-bush
Amorpha tennesseensis — False Indigo, Tall Indigo-bush, False Indigo-bush
Amorpha virgata — False Indigo, Tall Indigo-bush, False Indigo-bush
Ampelamus albidus — Bluevine, Sandvine, Honeyvine
Ampelamus laevis — Bluevine, Sandvine, Honeyvine
Ampelopsis glandulosa var. brevipedunculata — Porcelain-berry, Amur Peppervine
Ampelopsis heterophylla — Porcelain-berry, Amur Peppervine
Ampelopsis heterophylla var. brevipedunculata — Porcelain-berry, Amur Peppervine
Ampelothamnus phillyreifolius — Vine-wicky, Climbing Fetterbush, Climbing Wicky
Amphicarpon amphicarpon — Pinebarrens Peanut-grass, Pinebarrens Goober-grass, New Jersey Goober-grass
Amphiglottis conopsea — Green-fly Orchid
Amphistelma scoparia — Leafless Swallowwort, Cynanchum
Amsonia amsonia — Eastern Bluestar, Blue Dogbane, Wideleaf Bluestar
Amsonia ciliata var. filifolia — Sandhill Bluestar, Fringed Bluestar
Amsonia ciliata var. tenuifolia — Sandhill Bluestar, Fringed Bluestar
Amsonia tabernaemontana var. gattingeri — Swamp Bluestar, Ozark Bluestar, Shining Bluestar
Amsonia tabernaemontana var. illustris — Swamp Bluestar, Ozark Bluestar, Shining Bluestar
Amsonia tabernaemontana var. salicifolia — Eastern Bluestar, Blue Dogbane, Wideleaf Bluestar
Amsonia tabernaemontana var. salicifolia — Swamp Bluestar, Ozark Bluestar, Shining Bluestar
Amygdalus persica — Peach
Anacampseros telephioides — Allegheny Live-forever, Cliff Orpine, Allegheny Stonecrop
Anacharis densa — Brazilian Waterweed, Brazilian Egeria, "Brazilian Elodea", "Anacharis"
Anagallis arvensis var. arvensis — Scarlet Pimpernel, Poor Man's Weatherglass
Anantherix connivens — Largeflower Milkweed
Androcera rostrata — Buffalo-bur Nightshade, Kansas-thistle
Andromeda glaucophylla — Bog-rosemary
Andromeda populifolia — Tall Fetterbush, Florida Leucothoe, Florida Hobblebush, Agarista
Andropogon campyloracheus — Elliott's Bluestem
Andropogon decipiens — Deceptive Bluestem, Deceptive Broomsedge
Andropogon elliottii var. stenophyllus — Narrowleaf Bluestem
Andropogon gerardii ssp. gerardii — Big Bluestem, Turkeyfoot
Andropogon glomeratus var. glaucopsis — Chalky Bluestem, Purple Bluestem, Coastal Bluestem, Big Chalky Bluestem
Andropogon glomeratus var. pumilus "robust variant" — Maritime Bushy Bluestem, Bushy Beardgrass, Maritime Bluestem
Andropogon gyrans var. gyrans "common variant" — Elliott's Bluestem
Andropogon liebmannii var. pungensis — Mohr's Bluestem, Tawny Bluestem, Bog Bluestem
Andropogon littoralis — Seaside Little Bluestem
Andropogon provincialis — Big Bluestem, Turkeyfoot
Andropogon scoparius var. littoralis — Seaside Little Bluestem
Andropogon scoparius var. scoparius — Common Little Bluestem
Andropogon stolonifer — Creeping Bluestem, Creeping Little Bluestem
Andropogon virginicus var. dealbatus — Wetland White Bluestem
Andropogon virginicus var. glaucopsis — Chalky Bluestem, Purple Bluestem, Coastal Bluestem, Big Chalky Bluestem
Andropogon virginicus var. glaucopsis — Wetland White Bluestem
Andropogon virginicus var. glaucus — Dryland White Bluestem, Chalky Bluestem
Andropogon virginicus var. glaucus — Wetland White Bluestem
Andropogon virginicus var. glaucus "drylands variant" — Dryland White Bluestem, Chalky Bluestem
Andropogon virginicus var. glaucus "wetlands variant" — Wetland White Bluestem
Andropogon virginicus var. hirsutior — Savanna Bushy Bluestem, Hairy Bluestem
Andropogon virginicus var. virginicus "oldfield variant" — Broomsedge, Broomsedge Bluestem, Old-field Broomstraw, "Sedge Grass"
Anemone acutiloba — Sharp-lobed Hepatica, Sharp-lobed Liverleaf
Anemone americana — Round-lobed Hepatica, Round-lobed Liverleaf
Anemone quinquefolia var. bifolia — Wood Anemone
Anemone riparia — Thimbleweed, Tall Thimbleweed, Tall Anemone
Anemonella thalictroides — Windflower, Rue-anemone
Anemonidium canadense — Canada Anemone
Angelica curtisii — Mountain Angelica, Appalachian Angelica, Filmy Angelica
Angelica venenosa ssp. dentata — Sandhill Angelica
Angelica venenosa ssp. venenosa — Hairy Angelica, Downy Angelica, Deadly Angelica, Woodland Angelica
Angelica villosa — Hairy Angelica, Downy Angelica, Deadly Angelica, Woodland Angelica
Anisostichus crucigera — Crossvine
Antennaria calophylla — Big-head Pussytoes
Antennaria caroliniana — Plantainleaf Pussytoes, Plantain Pussytoes
Antennaria fallax — Big-head Pussytoes
Antennaria fallax var. calophylla — Big-head Pussytoes
Antennaria howellii — Pussytoes
Antennaria neglecta var. argillicola — Shale-barren Pussytoes
Antennaria neglecta var. attenuata — Pussytoes
Antennaria neglecta var. neglecta — Field Pussytoes
Antennaria neglecta var. neodioica — Pussytoes
Antennaria neodioica var. attenuata — Pussytoes
Antennaria neodioica var. neodioica — Pussytoes
Antennaria parlinii var. arnoglossa — Parlin's Pussytoes
Antennaria parlinii var. parlinii — Parlin's Pussytoes
Antennaria plantaginifolia var. parlinii — Parlin's Pussytoes
Antennaria virginica var. argillicola — Shale-barren Pussytoes
Antennaria virginica var. virginica — Shale-barren Pussytoes
Antenoron virginianum — Virginia Jumpseed
Anthemis arvensis var. agrestis — Corn Chamomile, Field Chamomile
Anthemis arvensis var. arvensis — Corn Chamomile, Field Chamomile
Anthopogon crinitum — Eastern Fringed Gentian, Greater Fringed Gentian
Anticlea chlorantha — White Death-camas, White Camass, Mountain Death-camas
Anticlea elegans — White Death-camas, White Camass, Mountain Death-camas
Anticlea elegans ssp. glauca — White Death-camas, White Camass, Mountain Death-camas
Anychia canadensis — Forked Chickweed, Canada Whitlow-wort, Smooth Forked Nailwort
Anychiastrum montanum — Mountain Nailwort, Shale-barren Whitlow-wort
Aquilegia australis — Eastern Columbine, Canada Columbine
Aquilegia coccinea — Eastern Columbine, Canada Columbine
Arabidopsis lyrata — Lyreleaf Rockcress, Dwarf Rockcress, Sandcress
Arabis burkii — Burk's Smooth Rockcress, Porter's Rockcress
Arabis burkii — Common Smooth Rockcress
Arabis laevigata — Common Smooth Rockcress
Arabis virginica — Sibara, Virginia-cress, Virginia Rockcress, Virginia Winged Rockcress
Arabis viridis var. viridis — Missouri Rockcress
Arachis glabrata var. glabrata — Grassnut
Arachis glabrata var. hagenbeckii — Grassnut
Arachis prostrata — Grassnut
Aranella fimbriata — Fringed Bladderwort
Archangelica dentata — Sandhill Angelica
Arenaria alabamensis — Piedmont Sandwort, One-flower Sandwort
Arenaria glabra — Appalachian Sandwort
Arenaria lanuginosa ssp. lanuginosa var. longepedunculata — Spreading Sandwort
Arenaria patula var. patula — Lime-barren Sandwort, Glade Sandwort
Arenaria serpyllifolia ssp. leptoclados — Lesser Thymeleaf Sandwort, Slender Sandwort
Arenaria serpyllifolia ssp. serpyllifolia — Large Thymeleaf Sandwort
Arenaria serpyllifolia var. serpyllifolia — Large Thymeleaf Sandwort
Arenaria serpyllifolia var. tenuior — Lesser Thymeleaf Sandwort, Slender Sandwort
Argemone alba — White Prickly-poppy, Carolina Poppy
Argentacer saccharinum — Silver Maple, Soft Maple
Arisaema atrorubens — Jack-in-the-Pulpit
Arisaema atrorubens — Common Jack-in-the-Pulpit, Indian Turnip
Arisaema triphyllum var. acuminatum — Florida Jack-in-the-pulpit
Arisaema triphyllum var. pusillum — Small Jack-in-the-pulpit, Swamp Jack
Arisaema triphyllum var. triphyllum — Common Jack-in-the-Pulpit, Indian Turnip
Arisaema triphyllum var. triphyllum — Bog Jack-in-the-pulpit, Northern Jack-in-the-pulpit
Arisaema triphyllum var. triphyllum — Jack-in-the-Pulpit
Aristida stricta var. beyrichiana — Southern Wiregrass
Aristida stricta var. stricta — Carolina Wiregrass, Pineland Three-awn
Aristolochia convolvulacea — Turpentine-root, Virginia Snakeroot, Serpent Birthwort
Aristolochia durior — Dutchman's Pipe, Pipevine
Aristolochia hastata — Turpentine-root, Virginia Snakeroot, Serpent Birthwort
Aristolochia littoralis — Elegant Dutchman's Pipe, Calico-flower
Arnoglossum muehlenbergii — Great Indian-plantain
Aronia ×floribunda — Purple Chokeberry
Aronia atropurpurea — Purple Chokeberry
Arsenococcus frondosus — Southern Maleberry, He-huckleberry
Arsenococcus ligustrinus — Northern Maleberry, He-huckleberry
Artemisia ludoviciana var. gnaphalodes — White Sage, Prairie Sage, White Sagewort, Western Mugwort
Artemisia ludoviciana var. ludoviciana — White Sage, Prairie Sage, White Sagewort, Western Mugwort
Artemisia stellerana — Beach Wormwood, Dusty Miller, Hoary Mugwort, Oldwoman
Aruncus allegheniensis — Eastern Goatsbeard, Bride's Feathers
Arundinaria gigantea ssp. gigantea — River Cane, Giant Cane
Arundinaria gigantea ssp. tecta — Switch Cane, Small Cane, Mutton Grass
Arundinaria gigantea ssp. tecta — Hill Cane
Arundo donax var. donax — Giant Reed
Arundo donax var. versicolor — Giant Reed
Asarum arifolium — Little Brown Jug, Arrowhead Heartleaf, Arrowleaf Heartleaf, Pigs
Asarum arifolium var. arifolium — Little Brown Jug, Arrowhead Heartleaf, Arrowleaf Heartleaf, Pigs
Asarum arifolium var. callifolium — Gulf Little Brown Jug
Asarum arifolium var. ruthii — Appalachian Little Brown Jug
Asarum callifolium — Gulf Little Brown Jug
Asarum canadense var. acuminatum — Acuminate Wild Ginger
Asarum canadense var. ambiguum — Common Wild Ginger, Canada Wild Ginger
Asarum canadense var. canadense — Common Wild Ginger, Canada Wild Ginger
Asarum canadense var. reflexum — Reflexed Wild Ginger
Asarum contractum — French Broad Heartleaf, Carolina Heartleaf
Asarum contractum — Mountain Heartleaf
Asarum harperi — Harper's Heartleaf
Asarum heterophyllum — Variable-leaf Heartleaf
Asarum lewisii — Lewis's Heartleaf
Asarum memmingeri — Virginia Heartleaf
Asarum minus — Little Heartleaf, Small Heartleaf Ginger
Asarum naniflorum — Dwarf-flower Heartleaf
Asarum rhombiformis — French Broad Heartleaf, Carolina Heartleaf
Asarum rubrocinctum — Acuminate Wild Ginger
Asarum ruthii — Appalachian Little Brown Jug
Asarum shuttleworthii var. harperi — Harper's Heartleaf
Asarum shuttleworthii var. shuttleworthii — Large-flower Heartleaf, Wild Ginger
Asarum sorriei — Sandhill Heartleaf, Streamhead Heartleaf
Asarum speciosum — Alabama Heartleaf, Alabama Ginger
Asarum virginicum — Virginia Heartleaf
Asclepias aceratoides — Sandhill Milkweed, Velvetleaf Milkweed
Asclepias decumbens — Butterfly Milkweed, Eastern Butterflyweed, Pleurisy Root, Wind Root
Asclepias lanceolata var. paupercula — Fewflower Milkweed, Red Milkweed
Asclepias laurifolia — Purple Savanna Milkweed, "Red Milkweed", Bog Milkweed
Asclepias longifolia ssp. hirtella — Barrens Milkweed, Green Milkweed, Prairie Milkweed
Asclepias longifolia ssp. longifolia — Longleaf Milkweed, Savanna Milkweed
Asclepias longifolia var. hirtella — Barrens Milkweed, Green Milkweed, Prairie Milkweed
Asclepias longifolia var. longifolia — Longleaf Milkweed, Savanna Milkweed
Asclepias pulchra — Eastern Swamp Milkweed
Asclepias rolfsii — Sandhill Butterflyweed, Sandhill Butterfly Milkweed, Rolfs' milkweed
Asclepias tuberosa — Butterfly Milkweed, Eastern Butterflyweed, Pleurisy Root, Wind Root
Asclepiodora viridis — Green Antelope-horn, Spider Milkweed, Green Milkweed
Ascyrum cuneifolium — St. Peter's-wort, St. Andrew's Cross, St. Peter's Cross
Ascyrum hypericoides — St. Andrew's Cross
Ascyrum hypericoides var. multicaule — Straggling St. Johnswort, Low St. Johnswort, Creeping St. Andrew's Cross
Ascyrum linifolium — St. Andrew's Cross
Ascyrum pumilum — Pineland St. Johnswort
Ascyrum stans — St. Peter's-wort, St. Andrew's Cross, St. Peter's Cross
Ascyrum tetrapetalum — Low St. Peter's-wort
Asemeia cumulicola — Showy Milkwort
Asemeia grandiflora var. angustifolia — Showy Milkwort
Asemeia grandiflora var. grandiflora — Showy Milkwort
Asemeia leiodes — Showy Milkwort
Asemeia miamiensis — Showy Milkwort
Asimina ×piedmontana [parviflora × triloba] — Hybrid Pawpaw
Asimina incarna — Flag Pawpaw, Polecat Bush, Woolly Pawpaw
Asimina longifolia var. longifolia — Slimleaf Pawpaw
Asimina longifolia var. spatulata — Slimleaf Pawpaw
Asimina speciosa — Flag Pawpaw, Polecat Bush, Woolly Pawpaw
Asparagus densiflorus — Sprenger’s Asparagus-fern, Emerald-fern
Asplenium ×pinnatifidum — Lobed Spleenwort
Asplenium heterochroum — Marl Spleenwort, Carolina Spleenwort, Wagner's Spleenwort, Morzenti's Spleenwort
Asplenium pinnatifidum var. pinnatifidum — Lobed Spleenwort
Asplenium platyneuron var. bacculum-rubrum — Ebony Spleenwort
Asplenium platyneuron var. platyneuron — Ebony Spleenwort
Asplenium pycnocarpon — Glade Fern
Aspris capillaris — Elegant Hairgrass, Annual Silver Hairgrass
Aspris caryophyllea — Silver Hairgrass
Aster adnatus — Scale-leaf Aster
Aster asperifolius — Wavyleaf Aster
Aster avitus — Alexander's Rock Aster
Aster boykinii — White Wood-aster, Woodland Aster, Common White Heart-leaved Aster
Aster brachypholis — Small White Aster
Aster camptosorus — Short's Aster, Midwestern Blue Heart-leaved Aster
Aster castaneus — White Wood-aster, Woodland Aster, Common White Heart-leaved Aster
Aster chlorolepis — Blue Ridge White Heart-leaved Aster, Mountain Wood-aster
Aster claviger — Wavyleaf Aster
Aster concinnus — Narrowleaf Smooth Blue Aster, Harmonious Aster
Aster conduplicatus — Purplestem Aster, Swamp Aster
Aster cordifolius var. sagittifolius — White Arrowleaf Aster, Arrowleaf Blue Wood Aster
Aster coridifolius — Bushy Aster, Long-stalked Aster, Rice Button Aster
Aster corrigiatus — Wavyleaf Aster
Aster depauperatus — Serpentine Aster
Aster divaricatus — White Wood-aster, Woodland Aster, Common White Heart-leaved Aster
Aster elodes — New York Aster
Aster eryngiifolius — Eryngo-leaved Aster, Thistleleaf Aster
Aster excavatus — White Wood-aster, Woodland Aster, Common White Heart-leaved Aster
Aster falcidens — Smooth Blue Aster
Aster firmus — Shining Aster, Glossyleaf Aster
Aster flexilis — White Wood-aster, Woodland Aster, Common White Heart-leaved Aster
Aster georgianus — Georgia Aster
Aster glomeratus — Schreber's Aster
Aster gracilescens — Wavyleaf Aster
Aster laevis — Smooth Blue Aster
Aster laevis — Narrowleaf Smooth Blue Aster, Harmonious Aster
Aster lanceolatus ssp. lanceolatus var. latifolius — Broadleaf Panicled Aster, White Panicle Aster, Broad-leaved White Panicled Aster
Aster lanceolatus var. lanceolatus — Panicled Aster, White Panicle Aster, Tall White Aster
Aster lanceolatus var. latifolius — Broadleaf Panicled Aster, White Panicle Aster, Broad-leaved White Panicled Aster
Aster lanceolatus var. simplex — Broadleaf Panicled Aster, White Panicle Aster, Broad-leaved White Panicled Aster
Aster linguiformis — Wavyleaf Aster
Aster loriformis — Wavyleaf Aster
Aster lowrieanus — Smooth Heartleaf Aster, Lowrie's Blue Wood Aster, Lowrie's Aster
Aster lucidulus — Shining Aster, Glossyleaf Aster
Aster mirabilis — Piedmont Aster, Bouquet Aster
Aster mohrii — Wavyleaf Aster
Aster multiformis — Large-leaf Aster, Bigleaf Aster
Aster ontarionis — Bottomland Aster
Aster patens var. georgianus — Georgia Aster
Aster patens var. patens — Late Purple Aster, Common Clasping Aster, Late Blue Aster, Skydrop Aster
Aster patens var. phlogifolius — Appalachian Clasping Aster, Thinleaf Late Purple Aster
Aster phlogifolius — Appalachian Clasping Aster, Thinleaf Late Purple Aster
Aster pilosus var. pilosus — Frost Aster, White Heath Aster
Aster plumarius — Smooth Heartleaf Aster, Lowrie's Blue Wood Aster, Lowrie's Aster
Aster praealtus — Willowleaf Aster, Veiny-lined Aster, Tall Aster, Willow Aster
Aster praealtus var. angustior — Willowleaf Aster, Veiny-lined Aster, Tall Aster, Willow Aster
Aster praealtus var. praealtus — Willowleaf Aster, Veiny-lined Aster, Tall Aster, Willow Aster
Aster proteus — Wavyleaf Aster
Aster ptarmicoides — Prairie Goldenrod, White Prairie-goldenrod, Upland White Aster
Aster puniceus var. elliottii — Elliott's Aster, Southern Swamp Aster
Aster puniceus var. firmus — Shining Aster, Glossyleaf Aster
Aster puniceus var. puniceus — Purplestem Aster, Swamp Aster
Aster racemosus — Small White Aster
Aster racemosus — Small White Oldfield Aster
Aster radula — Rough-leaved Aster, Low Rough Aster
Aster retroflexus — Curtis's Aster, Rigid Whitetop Aster
Aster riciniatus — Large-leaf Aster, Bigleaf Aster
Aster sagittifolius var. sagittifolius — White Arrowleaf Aster, Arrowleaf Blue Wood Aster
Aster schreberi — Schreber's Aster
Aster sericeus — Western Silvery Aster
Aster sericocarpoides — Pocosin Flat-top Aster, Southern Whitetop, Streamhead Flat-top Aster, Southern Flat-top Aster
Aster shortii — Short's Aster, Midwestern Blue Heart-leaved Aster
Aster shortii var. camptosorus — Short's Aster, Midwestern Blue Heart-leaved Aster
Aster simmondsii — Simmonds’s Aster
Aster smallii — Low Showy Aster, Eastern Showy Aster
Aster stillettiformis — White Wood-aster, Woodland Aster, Common White Heart-leaved Aster
Aster subulatus var. ligulatus — Midwestern Saltmarsh Aster, Annual Water Aster, Yard Aster
Aster subulatus var. subulatus — Eastern Saltmarsh Aster, Annual Saltmarsh Aster
Aster sylvestris — Wavyleaf Aster
Aster tenebrosus — White Wood-aster, Woodland Aster, Common White Heart-leaved Aster
Aster triangularis — Wavyleaf Aster
Aster truellius — Wavyleaf Aster
Aster vimineus var. subdumosus — Small White Oldfield Aster
Aster vimineus var. vimineus — Small White Aster
Aster walteri — Walter's Aster
Astragalus carolinianus — Canada Milkvetch
Astranthium integrifolium var. integrifolium — Eastern Western-daisy, Entireleaf Western-daisy
Atamosco atamasco — Common Atamasco-lily, Rain-lily, Easter Lily, Naked Lily
Atamosco candida — Fall Rain-lily, Autumn Zephyrlily
Atamosco simpsonii — Florida Atamasco-lily, Red-margined Atamasco-lily, Rain-lily
Atamosco treatiae — Rain-lily, Treat's Zephyr-lily
Athyrium filix-femina var. angustum — Northern Lady Fern
Athyrium filix-femina var. asplenioides — Southern Lady Fern
Athyrium filix-femina var. michauxii — Northern Lady Fern
Athyrium niponicum — Japanese Painted Fern
Atragene americana — Mountain Clematis, Purple Clematis
Atriplex hastata — Thinleaf Orach, Fat-hen, Triangle Orach
Atriplex mucronata — Seabeach Orach
Atriplex patula var. hastata — Thinleaf Orach, Fat-hen, Triangle Orach
Atriplex patula var. patula — Spear Orach
Aureolaria flava ssp. flava — Smooth False Foxglove, Smooth Oak-leach, Smooth Yellow False Foxglove
Aureolaria flava ssp. reticulata — Smooth False Foxglove, Smooth Oak-leach, Smooth Yellow False Foxglove
Aureolaria flava var. macrantha — Smooth False Foxglove, Smooth Oak-leach, Smooth Yellow False Foxglove
Aureolaria microcarpa — Downy False Foxglove, Downy Oak-leach, Virginia Oak-leach, Downy Yellow False Foxglove
Aureolaria pectinata + — Southern Oak-leach, Sticky False Foxglove, Combleaf Yellow False Foxglove
Aureolaria pedicularia var. pectinata — Southern Oak-leach, Sticky False Foxglove, Combleaf Yellow False Foxglove
Azalea alabamensis — Alabama Azalea
Azalea arborescens — Sweet Azalea, Smooth Azalea
Azalea atlantica — Dwarf Azalea, Coastal Azalea
Azalea austrina — Florida Flame Azalea, Yellow Azalea
Azalea calendulacea — Flame Azalea
Azalea candida — Piedmont Azalea, Southern Pinxter Azalea, Hoary Azalea
Azalea canescens — Piedmont Azalea, Southern Pinxter Azalea, Hoary Azalea
Azalea nudiflora — Pinxterflower, Pinxterbloom Azalea, Election Pink, Pinxter Azalea
Azalea oblongifolia — Swamp Azalea, Clammy Azalea, Swamp Honeysuckle, Catchfly Azalea
Azalea pilosa — Minniebush
Azalea prinophylla — Election Pink, Roseshell Azalea, Early Azalea
Azalea prunifolia — Plumleaf Azalea
Azalea serrulata — Swamp Azalea, Clammy Azalea, Sweet Azalea
Azalea speciosa — Oconee Azalea
Azalea viscosa — Swamp Azalea, Clammy Azalea, Swamp Honeysuckle, Catchfly Azalea
Azalea viscosa — Clammy Azalea
Azolla cristata — Carolina Mosquito-fern, Eastern Mosquito-fern, Water Fern
Azolla microphylla — Carolina Mosquito-fern, Eastern Mosquito-fern, Water Fern
Bacopa acuminata — Mecardonia, Common Axilflower
Bacopa stragula — Tropical Water-hyssop
Balsamita major — Mint-geranium, Costmary, Sweetmary
Baptisia albescens × B. tinctoria — a hybrid Wild Indigo
Baptisia gibbesii — Horsefly Weed, Yellow Wild Indigo, Yellow False-indigo, Rattleweed
Baptisia lactea var. lactea — white wild indigo
Baptisia leucantha — white wild indigo
Baptisia leucophaea var. glabrescens — longbract wild indigo
Baptisia minor var. aberrans — Eastern Prairie Blue Wild Indigo, Glade Wild Indigo, Glade Blue Wild Indigo, Glade Blue Baptisia
Baptisia pendula var. macrophylla — white wild indigo
Baptisia pendula var. obovata — Thick-pod White Wild Indigo
Baptisia tinctoria var. crebra — Horsefly Weed, Yellow Wild Indigo, Yellow False-indigo, Rattleweed
Baptisia tinctoria var. projecta — Horsefly Weed, Yellow Wild Indigo, Yellow False-indigo, Rattleweed
Baptisia tinctoria var. tinctoria — Horsefly Weed, Yellow Wild Indigo, Yellow False-indigo, Rattleweed
Baptisia villosa — Carolina Wild Indigo, Gray-hairy Wild Indigo
Barbarea vulgaris var. vulgaris — Yellow Rocket-cress, Common Winter-cress, Yellow Rocket, Creasy
Bartonia paniculata var. paniculata — Screwstem Bartonia
Batodendron arboreum — Sparkleberry, Farkleberry
Batschia canescens — Hoary Puccoon, Indian-paint
Batschia caroliniensis — Coastal Plain Puccoon, Hairy Puccoon, Sandhill Puccoon
Befaria racemosa — Tarflower, Flycatcher
Benzoin aestivale — Northern Spicebush, Wild Allspice
Benzoin melissaefolium — Southern Spicebush, Pondberry
Berberis bealei — Leatherleaf Mahonia, Chinese Mahonia, Holly-grape
Berberis julianiae — Evergreen Barberry, Wintergreen Barberry
Berberis nervosa — Cascade Oregon-grape, Cascades Mahonia
Berberis repens — Creeping Oregon-grape
Betula alleghaniensis var. macrolepis — Yellow Birch
Bicuculla canadensis — Squirrel Corn
Bicuculla cucullaria — Dutchman's Britches
Bicuculla eximia — Wild Bleeding Heart
Bidens aristosa var. aristosa — Ditch Daisy, Bearded Beggarticks, Midwestern Tickseed-sunflower, Tickseed Sunflower
Bidens aristosa var. mutica — Ditch Daisy, Bearded Beggarticks, Midwestern Tickseed-sunflower, Tickseed Sunflower
Bidens mitis var. leptophylla — Coastal Plain Tickseed-sunflower, Smallfruit Beggarticks
Bidens mitis var. mitis — Coastal Plain Tickseed-sunflower, Smallfruit Beggarticks
Bidens nashii — Showy Bur-marigold, Smooth Beggarticks
Bidens tripartita ssp. comosa — Strawstem Beggarticks
Bigelowia nudata var. nudata — Pineland Rayless-goldenrod
Bigelowia virgata — Nuttall's Rayless-goldenrod, Glade Rayless-goldenrod, West Gulf Coastal Plain Rayless-goldenrod
Bignonia radicans — Trumpetcreeper, Trumpet Vine, Cow-Itch Vine
Bignonia unguis-cati — Claw-vine, Cat's-claw-vine
Bilderdykia cilinodis — Fringed Climbing Buckwheat, Fringed Black Bindweed, Fringed Bindweed
Bilderdykia convolvulus — Climbing Buckwheat, Nimblewill, Black Bindweed
Bilderdykia cristata — Common Climbing Buckwheat
Bilderdykia scandens — Common Climbing Buckwheat
Biltia vaseyi — Pinkshell Azalea
Biota orientalis — Oriental Arborvitae, Tree-of-life
Biovularia olivacea — Dwarf Bladderwort, Minute Bladderwort
Biventraria variegata — White Milkweed, Redring Milkweed, Variegated Milkweed
Bivonea stimulosa — Spurge-nettle, Tread-softly, Bull-nettle, Finger-rot
Bladhia crenata — Coral Ardisia, Hen's Eyes, Coralberry, Marlberry
Bladhia japonica — Japanese Ardisia, Marlberry
Bladhia solanacea — China-shrub
Blephariglottis blephariglottis — Small White Fringed Orchid
Blephariglottis ciliaris — Yellow Fringed Orchid
Blephariglottis conspicua — Large White Fringed Orchid, Southern White Fringed Orchid
Blephariglottis cristata — Crested Fringed Orchid, Golden Fringed Orchid
Blephariglottis grandiflora — Large Purple Fringed Orchid, Plume-royal, Greater Purple Fringed Orchid
Blephariglottis lacera — Ragged Fringed Orchid, Green Fringed Orchid, Ragged Orchid
Blephariglottis peramoena — Purple Fringeless Orchid, Purple Spire Orchid, Pride-of-the-peak
Blephariglottis psycodes — Small Purple Fringed Orchid, Butterfly Orchid, Lesser Purple Fringed Orchid
Boechera burkii — Burk's Smooth Rockcress, Porter's Rockcress
Boechera canadensis — Canada Rockcress, Sicklepod
Boechera georgiana — Georgia Rockcress
Boechera laevigata — Burk's Smooth Rockcress, Porter's Rockcress
Boechera laevigata — Common Smooth Rockcress
Boechera missouriensis — Missouri Rockcress
Boechera patens — Spreading Rockcress
Boehmeria decurrens — False Nettle, Swamp-nettle
Boehmeria drummondiana — False Nettle, Swamp-nettle
Boerhaavia erecta — Erect Spiderling, Smooth Hogweed
Boltonia diffusa — Southern Doll's-daisy, Boltonia, Smallhead Doll's-daisy
Boltonia diffusa var. caroliniana — Carolina Doll's-daisy, Boltonia
Bonamia angustifolia — Narrowleaf Dawnflower
Borreria laevis — Woodland Buttonweed
Botrychium matricariaefolium — Daisyleaf Moonwort
Botrychium obliquum — Cutleaf Grapefern, Dissected Grapefern
Bowlesia septentrionalis — Hoary Bowlesia
Brachiaria ramosa — Browntop Millet, Dixie Signalgrass
Brachychaeta sphacelata — Heartleaf Goldenrod, False Goldenrod, Limestone Goldenrod, Autumn Goldenrod
Brachyelytrum erectum var. erectum — Bearded Shorthusk, Common Shorthusk
Brachyelytrum erectum var. septentrionale — Northern Shorthusk
Brachyelytrum septentrionale — Northern Shorthusk
Bradburya virginiana — Climbing Butterfly-pea, Spurred Butterfly-pea
Brassica campestris — Turnip, Field Mustard, Field Rape, Chinese Cabbage
Brassica japonica — Mustard Greens, Indian Mustard, Brown Mustard, Chinese Mustard
Brassica rapa var. chinensis — Turnip, Field Mustard, Field Rape, Chinese Cabbage
Breweria humistrata — Southern Dawnflower
Breweria michauxii — Water Dawnflower
Breweria pickeringii — Pickering's Dawnflower
Bromus hordeaceus — Soft Chess, Lopgrass, Soft Brome
Bromus japonicus var. japonicus — Japanese Chess, Japanese Brome
Bromus japonicus var. porrectus — Japanese Chess, Japanese Brome
Bromus laeviglumis — Hairy Woodland Brome, Common Eastern Brome, Canada Brome
Bromus purgans var. laeviglumis — Hairy Woodland Brome, Common Eastern Brome, Canada Brome
Bromus purgans var. purgans — Hairy Woodland Brome, Common Eastern Brome, Canada Brome
Bromus unioloides — Rescue Grass
Bruneria columbiana — Colombian Watermeal
Buchnera breviflora — Savanna Bluehearts, Florida Bluehearts, Buchnera
Buchnera elongata — Savanna Bluehearts, Florida Bluehearts, Buchnera
Buchnera longifolia — Savanna Bluehearts, Florida Bluehearts, Buchnera
Bumelia anomala — Alachua Bully, Silver Bully, Silver Buckthorn
Bumelia lanuginosa — Eastern Gum Bumelia, Eastern Gum Bully
Bumelia lanuginosa var. anomala — Alachua Bully, Silver Bully, Silver Buckthorn
Bumelia lycioides var. lycioides — Buckthorn Bumelia, Buckthorn Bully, Carolina Buckthorn
Bumelia lycioides var. virginiana — Buckthorn Bumelia, Buckthorn Bully, Carolina Buckthorn
Bumelia macrocarpa — Big-fruited Buckthorn, Ohoopee Bumelia, Ohoopee Bully
Bumelia microcarpa — Smooth Bumelia, Florida Bully
Bumelia reclinata — Smooth Bumelia, Florida Bully
Bumelia reclinata var. reclinata — Big-fruited Buckthorn, Ohoopee Bumelia, Ohoopee Bully
Bumelia smallii — Buckthorn Bumelia, Buckthorn Bully, Carolina Buckthorn
Bumelia thornei — Georgia Bully, Thorne's Bumelia, Swamp Bumelia
Bursa bursa-pastoris — Common Shepherd's Purse
Buxella brachycera — Box Huckleberry
Cabomba caroliniana var. caroliniana — Fanwort, Carolina Fanwort
Cabomba caroliniana var. pulcherrima — Fanwort, Carolina Fanwort
Cacalia diversifolia — Variable-leaf Indian-plantain
Cacalia ovata — Broadleaf Indian-plantain, Ovateleaf Indian-plantain, Ovateleaf Cacalia
Cacalia rugelia — Rugel's Ragwort, Rugelia, Rugel's Indian-plantain
Caladium giganteum — Giant Elephant's-ear, Indian Taro
Calamagrostis epigeios var. epigeios — Bushgrass, Feathertop
Calamagrostis epigeios var. georgica — Bushgrass, Feathertop
Calamintha ashei — Ashe's Savory, Ashe's Calamint, Ohoopee Dunes Wild Basil
Calamintha coccinea — Scarlet Wild Basil, Scarlet Calamint, Red Mint Shrub, Red Basil
Calamintha georgiana — Georgia Savory, Georgia Basil, Georgia Calamint, False Peppermint
Calamintha nepeta ssp. glandulosa — Lesser Calamint, Basil-thyme
Calamintha officinalis — Lesser Calamint, Basil-thyme
Callirhoe digitata var. stipulata — Palmleaf Poppy-mallow
Callitropsis ×leylandii — Leyland Cypress
Calycanthus brockiana — Sweetshrub, Carolina Allspice, Strawberry-shrub
Calycanthus brockianus — Sweetshrub, Carolina Allspice, Strawberry-shrub
Calycanthus fertilis — Sweetshrub, Carolina Allspice, Strawberry-shrub
Calycanthus floridus var. floridus — Sweetshrub, Carolina Allspice, Strawberry-shrub
Calycanthus mohrii — Sweetshrub, Carolina Allspice, Strawberry-shrub
Calycanthus nanus — Sweetshrub, Carolina Allspice, Strawberry-shrub
Calystegia catesbeiana ssp. catesbeiana — Catesby's Bindweed, Catesby's False Bindweed
Calystegia catesbeiana ssp. sericata — Blue Ridge Bindweed, Silky Bindweed, Downy False Bindweed
Calystegia silvatica ssp. fraterniflorus — Twin-flowered Bindweed, Twoflower Bindweed, Shortstalk False Bindweed
Calystegia silvatica var. fraterniflora — Twin-flowered Bindweed, Twoflower Bindweed, Shortstalk False Bindweed
Calystegia spithamaea ssp. stans — Shale Bindweed
Campanula aparinoides var. aparinoides — Marsh-bellflower, Bedstraw Bellflower
Campanula aparinoides var. grandiflora — Largeflower Marsh-bellflower
Campanula flexuosa — Southern Harebell, Appalachian Bellflower
Campanula uliginosa — Largeflower Marsh-bellflower
Campe barbarea — Yellow Rocket-cress, Common Winter-cress, Yellow Rocket, Creasy
Campe stricta — Yellow Rocket-cress, Common Winter-cress, Yellow Rocket, Creasy
Campe verna — Early Winter-cress, Creasy
Camphora camphora — Camphortree
Camptosorus rhizophyllus — Walking Fern
Campulosus aromaticus — Toothache Grass, Orangegrass, Wild Ginger
Campulosus floridanus — Florida Toothache Grass, Florida orangegrass
Cannabis sativa ssp. indica — Marijuana, Hemp
Cannabis sativa ssp. sativa var. spontanea — Marijuana, Hemp
Cannabis sativa var. sativa — Marijuana, Hemp
Cannabis sativa var. spontanea — Marijuana, Hemp
Capnoides flavulum — Yellow Fumitory, Yellow Harlequin, Short-spurred Corydalis, Yellow Fumewort
Capnoides halei — Southern Corydalis
Capnoides micranthum — Slender Corydalis
Capriola dactylon — Bermuda Grass, Scutch Grass
Capsella rubella — Common Shepherd's Purse
Carara didyma — Wart-cress, Lesser Swine-cress
Cardamine arenicola — Sand Bittercress, Small-flowered Bittercress
Cardamine flagellifera — Blue Ridge Bittercress
Cardamine parviflora — Sand Bittercress, Small-flowered Bittercress
Cardamine rhomboidea — Bulbous Bittercress, Spring Cress
Carduus nutans ssp. macrolepis — Nodding Thistle, Musk Thistle
Carex abdita — Parasol Sedge
Carex albicans — White-tinged Sedge, Architectural Sedge
Carex amphibola var. amphibola — Eastern Narrowleaf Sedge
Carex amplisquama — Fibrous-rooted Sedge
Carex asa-grayi — Gray's Sedge
Carex atlantica var. atlantica — Prickly Bog Sedge
Carex bromoides var. bromoides — Common Brome Sedge, Brome-like Sedge
Carex bullata var. greenii — Greene's Sedge
Carex collinsiae — Collins' Sedge
Carex communis var. amplisquama — Fibrous-rooted Sedge
Carex complanata var. complanata — Hirsute Sedge
Carex convoluta — Rosy Sedge
Carex crinita — Long-fringed Sedge, Drooping Sedge
Carex crinita — Mitchell's Sedge
Carex crinita — Mountain Fringed Sedge, Nodding Sedge
Carex debilis var. intercursa — Allegheny Sedge
Carex flaccosperma var. flaccosperma — Meadow Sedge, Blue Wood Sedge, thinfruit sedge
Carex flaccosperma var. pigra — Lazy Sedge
Carex fraseri — Fraser's Sedge, Lily-leaf Sedge
Carex glaucescens var. androgyna — Warty Sedge
Carex glaucodea — Lazy Sedge
Carex granularis var. granularis — Limestone Meadow Sedge, Corncob Sedge
Carex granularis var. haleana — Limestone Meadow Sedge, Corncob Sedge
Carex gravida var. gravida — Heavy Sedge, Pregnant Sedge
Carex grayii — Gray's Sedge
Carex haleana — Limestone Meadow Sedge, Corncob Sedge
Carex incomperta — Prickly Bog Sedge
Carex laevi-vaginata — Smooth-sheath Sedge
Carex laxiflora var. angustifolia — Lined Sedge
Carex laxiflora var. blanda — Eastern Woodland Sedge, Charming Sedge
Carex laxiflora var. gracillima — Slender Sedge, Slender Loose-flowered Sedge
Carex laxiflora var. latifolia — White Bear Sedge
Carex laxiflora var. laxiflora — Broad Loose-flowered Sedge
Carex laxiflora var. purpurifera — Limestone Purple Sedge
Carex lucorum — Appalachian Woodland Sedge
Carex lunelliana — Heavy Sedge, Pregnant Sedge
Carex lurida var. gracilis — Bailey's Sedge
Carex magnifolia — Thicket Sedge
Carex microrhyncha — Parasol Sedge
Carex muhlenbergii var. enervis — Muhlenberg’s Sedge
Carex muhlenbergii var. muhlenbergii — Muhlenberg’s Sedge
Carex nigro-marginata — Black-edged Sedge
Carex nigro-marginata var. muhlenbergii — White-tinged Sedge, Architectural Sedge
Carex nigro-marginata var. nigro-marginata — Black-edged Sedge
Carex oxylepis var. pubescens — Sharp-scaled Sedge
Carex pedunculata ssp. pedunculata — Longstalk Sedge, Pedunculate Sedge
Carex pennsylvanica — Pennsylvania Sedge, High Meadow Sedge
Carex plana — Muhlenberg’s Sedge
Carex retroflexa var. retroflexa — Reflexed Sedge
Carex retroflexa var. texensis — Texas Sedge
Carex strictior — Tussock Sedge, Upright Sedge
Carex tenera var. tenera — Slender Sedge, Quill Sedge
Carex tetanica var. woodii — Wood's Sedge, Pretty Sedge
Carex varia — White-tinged Sedge, Architectural Sedge
Carex virescens var. swanii — Swan's Sedge
Carex vulpinoidea var. ambigua — Yellow-fruited Sedge
Carex walteriana var. brevis — Walter’s Sedge
Carex walteriana var. walteriana — Walter’s Sedge, Pocosin Sedge
Carex willdenovii — Limestone Forest Sedge
Carex willdenovii — Willdenow's Sedge
Carex willdenovii — Southern Willdenow's Sedge, Widow Sedge
Carex willdenowii var. megarrhyncha — Limestone Forest Sedge
Carex willdenowii var. megarrhyncha — Southern Willdenow's Sedge, Widow Sedge
Carphephorus odoratissimus var. odoratissimus — Vanilla-leaf, Deer's-tongue, Pineland Purple
Cartrema americana — Devilwood, Wild Olive
Carya alba — Mockernut Hickory, White Hickory
Carya glabra var. glabra — Pignut Hickory
Carya glabra var. odorata — Red Hickory, Sweet Pignut Hickory
Carya ovalis var. hirsuta — Pignut Hickory
Carya ovata var. australis — Carolina Shagbark Hickory, Southern Shagbark Hickory, Carolina Hickory
Carya ovata var. fraxinifolia — Common Shagbark Hickory
Carya ovata var. nuttallii — Common Shagbark Hickory
Carya ovata var. ovata — Common Shagbark Hickory
Cassia fasciculata var. fasciculata — Common Partridge-pea, Showy Partridge Pea
Cassia nictitans var. hebecarpa — Sensitive Partridge-pea, Common Sensitive-plant
Cassia nictitans var. nictitans — Sensitive Partridge-pea, Common Sensitive-plant
Castalia elegans — Tropical Blue Water-lily
Castalia flava — Yellow Water-lily, Banana Water-lily
Castalia lekophylla — Fragrant White Water-lily, American Water-lily, Sweet Water-lily, White Water-lily
Castalia minor — Fragrant White Water-lily, American Water-lily, Sweet Water-lily, White Water-lily
Castalia odorata — Fragrant White Water-lily, American Water-lily, Sweet Water-lily, White Water-lily
Castanea alnifolia — Common Chinquapin, Chinkapin, Allegheny Chinquapin
Castanea alnifolia var. alnifolia — Common Chinquapin, Chinkapin, Allegheny Chinquapin
Castanea alnifolia var. floridana — Common Chinquapin, Chinkapin, Allegheny Chinquapin
Castanea ashei — Common Chinquapin, Chinkapin, Allegheny Chinquapin
Castanea floridana — Common Chinquapin, Chinkapin, Allegheny Chinquapin
Castanea pumila var. ashei — Common Chinquapin, Chinkapin, Allegheny Chinquapin
Catalpa catalpa — Southern Catalpa, Fishbait Tree, Cigar Tree
Cathartolinum floridanum — Florida Yellow Flax, Savanna Flax
Cathartolinum floridanum — Yellow-fruited Yellow Flax, Florida yellow flax
Cathartolinum intercursum — Bicknell's Yellow Flax, Sandplain Flax
Cathartolinum macrosepalum — Florida Yellow Flax, Savanna Flax
Cathartolinum medium — Texas Yellow Flax, Stiff Yellow Flax, Spreading Flax, Texas Flax
Cathartolinum striatum — Ridgestem Yellow Flax, Ridged Yellow Flax
Cathartolinum virginianum — Virginia Yellow Flax, Woodland Flax
Caulophyllum thalictroides var. giganteum — Northern Blue Cohosh, Giant Blue Cohosh
Cayaponia grandifolia — Five-lobed Cucumber, Melon-leaf Cucumber
Ceanothus intermedius — Southeastern New Jersey Tea, Southeastern Ceanothus
Ceanothus ovatus — Prairie Redroot, Prairie Ceanothus
Ceanothus pubescens — Prairie Redroot, Prairie Ceanothus
Celastrus orbiculata — Oriental Bittersweet
Celtis georgiana — Georgia Hackberry, Dwarf Hackberry
Celtis laevigata var. laevigata — Sugarberry, Southern Hackberry, Smooth Hackberry, Lowland Hackberry
Celtis laevigata var. smallii — Small's Hackberry
Celtis laevigata var. texana — Sugarberry, Southern Hackberry, Smooth Hackberry, Lowland Hackberry
Celtis mississippiensis — Sugarberry, Southern Hackberry, Smooth Hackberry, Lowland Hackberry
Celtis tenuifolia — Georgia Hackberry, Dwarf Hackberry
Celtis tenuifolia var. georgiana — Georgia Hackberry, Dwarf Hackberry
Cenchrus advena — Tender Fountaingrass
Cenchrus alopecuroides — Chinese Fountaingrass, Black Fountaingrass, Foxtail Fountaingrass
Cenchrus compressus — Chinese Fountaingrass, Black Fountaingrass, Foxtail Fountaingrass
Cenchrus pauciflorus — Northern Sandspur, Common Sandspur, Longbristle Sandbur
Cenchrus spicatus — Pearl Millet
Cenchrus viridis — Slimbristle Sandspur
Centaurea biebersteinii — Spotted Knapweed, Bushy Knapweed
Centaurea debeauxii ssp. thuillieri — Meadow Knapweed
Centaurea dubia ssp. vochinensis — Tyrol Knapweed, Short-fringed Knapweed
Centaurea monctonii — Meadow Knapweed
Centaurea repens — Russian Knapweed
Centaurea stoebe ssp. australis — Spotted Knapweed, Bushy Knapweed
Centaurea transalpina — Tyrol Knapweed, Short-fringed Knapweed
Centella repanda — Centella, Erect Coinleaf, False Pennywort
Cerastium brachypetalum ssp. brachypetalum — Gray Mouse-ear Chickweed, Gray Chickweed
Cerastium longepedunculatum — Nodding Mouse-ear Chickweed, Nodding Chickweed
Cerastium viscosum — Sticky Mouse-ear, Sticky Chickweed, Sticky Mouse-ear Chickweed
Cerastium vulgatum — Common Mouse-ear Chickweed
Cerasus avium — Mazzard Cherry, Sweet Cherry, Bing Cherry
Cerasus mahaleb — Mahaleb Cherry, Perfumed Cherry, St. Lucie Cherry, Rock Cherry
Cerothamnus carolinensis — Pocossin Bayberry, Evergreen Bayberry, Swamp Candleberry, Southern Bayberry
Cerothamnus carolinensis — Northern Bayberry
Cerothamnus ceriferus — Common Wax-myrtle, Southern Bayberry
Cerothamnus inodorus — Scentless Bayberry, Odorless Bayberry
Cerothamnus pumilus — Dwarf Wax-myrtle, Dwarf Bayberry
Chaerophyllum dasycarpum — Southern Chervil, Wild Chervil, Hairyfruit Chervil
Chaerophyllum floridanum — Southern Chervil, Wild Chervil, Hairyfruit Chervil
Chaerophyllum procumbens — Common Spreading Chervil
Chaerophyllum tainturieri var. dasycarpum — Southern Chervil, Wild Chervil, Hairyfruit Chervil
Chaerophyllum tainturieri var. tainturieri — Southern Chervil, Wild Chervil, Hairyfruit Chervil
Chaerophyllum teinturièri — Southern Chervil, Wild Chervil, Hairyfruit Chervil
Chaetochloa corrugata — Coastal Plain Bristlegrass
Chaetochloa geniculata — Perennial Foxtail-grass, Knotroot Bristlegrass, Marsh Foxtail, Knotroot Foxtail
Chaetochloa italica — Yellow Foxtail, Italian Millet, Foxtail Millet, Italian Foxtail
Chaetochloa lutescens — Yellow Foxtail
Chaetochloa lutescens — Pearl Millet
Chaetochloa magna — Saltmarsh Foxtail-grass, Giant Foxtail-grass, Giant Bristlegrass
Chaetochloa verticillata — Hooked Bristlegrass
Chaetochloa viridis — Green Foxtail, Green Bristlegrass
Chamaecrista fasciculata — Common Partridge-pea, Showy Partridge Pea
Chamaecrista multipinnata — Sensitive Partridge-pea, Common Sensitive-plant
Chamaecrista procumbens — Sensitive Partridge-pea, Common Sensitive-plant
Chamaecrista robusta — Common Partridge-pea, Showy Partridge Pea
Chamaelirium obovale — Fairywand, Devil's Bit
Chamaenerion angustifolium — Great Willowherb, Fireweed
Chamaenerion danielsii — Great Willowherb, Fireweed
Chamaesyce ingallsii — Southern Seaside Spurge, Dixie Sandmat
Chamerion platyphyllum — Great Willowherb, Fireweed
Chasmanthium laxum var. laxum — Slender Woodoats, Slender Spikegrass
Chasmanthium laxum var. sessiliflorum — Longleaf Woodoats, Longleaf Spikegrass, Upland Oats
Cheilanthes vestita — Hairy Lipfern
Cheirinia cheiranthoides — Wormseed Mustard, Wormseed Wallflower
Chelone chlorantha — White Turtlehead
Chelone glabra var. elongata — White Turtlehead
Chelone glabra var. ochroleuca — White Turtlehead
Chelone lyoni — Mountain Turtlehead, Pink Turtlehead, Appalachian Turtlehead
Chelone montana var. elatior — White Turtlehead
Chelone montana var. montana — White Turtlehead
Chenopodium ambrosioides var. ambrosioides — Mexican-tea, Epazote
Chenopodium ambrosioides var. ambrosioides — Wormseed, Epazote
Chenopodium ambrosioides var. anthelminticum — Wormseed, Epazote
Chimaphila corymbosa — Prince's-pine
Chimaphila umbellata ssp. umbellata — Prince's-pine
Chiogenes hispidula — Creeping Snowberry, Moxie
Chionanthus virginica — Fringetree, Grancy Graybeard, Old Man's Beard, Grandsir-graybeard
Chondrophora virgata — Nuttall's Rayless-goldenrod, Glade Rayless-goldenrod, West Gulf Coastal Plain Rayless-goldenrod
Christella normalis — Kunth's Maiden-fern, Southern Shield-fern, Southern Woodfern
Christella ovata var. ovata — Ovate Maiden Fern, ovate marsh fern
Chrosperma muscaetoxicum — Fly-poison
Chrysanthemum balsamita — Mint-geranium, Costmary, Sweetmary
Chrysopsis arenicola — Woolly Goldenaster, Cottonleaf Goldenaster, Gossamer Goldenaster, Cottony Goldenaster
Chrysopsis camporum — Nashville Camphorweed, Lemon-yellow Goldenaster, Lemon-yellow False Goldenaster
Chrysopsis camporum var. glandulissima — Nashville Camphorweed, Lemon-yellow Goldenaster, Lemon-yellow False Goldenaster
Chrysopsis decumbens — Woolly Goldenaster, Cottonleaf Goldenaster, Gossamer Goldenaster, Cottony Goldenaster
Chrysopsis graminifolia — Common Silkgrass, Grassleaf Goldenaster
Chrysopsis graminifolia — Carolina Silkgrass, Pineland Silkgrass, Grassleaf Goldenaster
Chrysopsis graminifolia var. aspera — Carolina Silkgrass, Pineland Silkgrass, Grassleaf Goldenaster
Chrysopsis graminifolia var. aspera — Pineland Silkgrass, Sticky Goldenaster, Grassleaf Goldenaster
Chrysopsis graminifolia var. graminifolia — Narrowleaf Silkgrass, Grassleaf Goldenaster
Chrysopsis graminifolia var. latifolia — Common Silkgrass, Grassleaf Goldenaster
Chrysopsis graminifolia var. microcephala — Smallhead Silkgrass, Grassleaf Goldenaster
Chrysopsis graminifolia var. microcephala — Narrowleaf Silkgrass, Grassleaf Goldenaster
Chrysopsis longii — Woolly Goldenaster, Cottonleaf Goldenaster, Gossamer Goldenaster, Cottony Goldenaster
Chrysopsis oligantha — Narrowleaf Goldenaster, Few-flowered Goldenaster, Bog Goldenaster
Chrysopsis pinifolia — Sandhill Goldenaster, Taylor County Goldenaster, Taylor County Silkgrass
Chrysopsis ruthii — Ruth's Goldenaster
Chrysopsis villosa var. camporum — Nashville Camphorweed, Lemon-yellow Goldenaster, Lemon-yellow False Goldenaster
Ciclospermum ammi — Marsh-parsley
Ciclospermum leptophyllum — Marsh-parsley
Cicuta curtissii — Southern Water-hemlock
Cicuta maculata var. curtissii — Southern Water-hemlock
Cinna arundinacea var. arundinacea — Common Woodreed, Stout Woodreed, Sweet Woodreed
Cinna arundinacea var. inexpansa — Common Woodreed, Stout Woodreed, Sweet Woodreed
Circaea alpina var. alpina — Alpine Enchanter's Nightshade, Smaller Enchanter's Nightshade
Circaea latifolia — Canada Enchanter's Nightshade
Circaea quadrisulcata var. canadensis — Canada Enchanter's Nightshade
Cirsium flaccidum — Carolina Thistle, Spring Thistle, Soft Thistle, Prairie Thistle
Cirsium horridulum — Common Yellow Thistle, Purple Thistle, Bristle Thistle, Horrid Thistle
Cirsium lanceolatum — Bull Thistle
Cirsium odoratum — Pasture Thistle
Cirsium pumilum var. pumilum — Pasture Thistle
Cirsium revolutum — Virginia Thistle
Cissus incisa — Marine-ivy, Sorrel-vine
Citrullus citrullus — Watermelon
Citrullus lanatus ssp. lanatus — Watermelon
Citrus aurantium — Sour Orange, Marmalade Orange, Sweet Orange, Bitter Orange
Claytonia caroliniana var. lewisii — Carolina Spring-beauty
Claytonia media — Spring-beauty
Claytonia virginica var. acutiflora — Spring-beauty
Cleistes divaricata var. bifaria — Appalachian Dragonhead Pogonia, Appalachian Small Spreading Pogonia, Smaller Rosebud Orchid, Upland Spreading Pogonia
Cleistes divaricata var. bifaria — Small Dragonhead Pogonia, Coastal Plain Small Spreading Pogonia
Cleistes divaricata var. divaricata — Large Dragonhead Pogonia, Rosebud Orchid, Large Spreading Pogonia
Clematis micrantha — Coastal Virgin's Bower, Satin-curls, Climbing Clematis
Clematis paniculata — Sweet Autumn Clematis, Yam-leaved Clematis, Sweet Autumn Virgin's Bower, Japanese Virgin's-bower
Clematis warei — Ware's Leatherflower, Coosa Leatherflower
Cleome spinosa — Cleome, Spiderflower, Pinkqueen
Clerodendrum trichotomum — Harlequin Glorybower
Clethra alnifolia var. pubescens — Downy Sweet-pepperbush, Downy White-alder
Clinopodium nepeta — Lesser Calamint, Basil-thyme
Clintonia alleghaniensis — Speckled Wood-lily, White Clintonia
Cochranea anchusaefolia — Clasping Heliotrope, Violet Heliotrope
Coeloglossum bracteatum — Longbract Frog Orchid, Long-bracted Orchid
Coeloglossum viride — Longbract Frog Orchid, Long-bracted Orchid
Coeloglossum viride var. virescens — Longbract Frog Orchid, Long-bracted Orchid
Coleataenia anceps — Beaked Panicum, Beaked Panicgrass
Coleataenia anceps — Small Beaked Panicum, Small Beaked Panicgrass
Coleataenia condensa — Dense Panicgrass
Coleataenia longifolia ssp. elongata — Tall Flat Panicgrass, Stalked Panicgrass
Coleataenia rigidula — Redtop Panicgrass
Coleataenia stipitata — Tall Flat Panicgrass, Stalked Panicgrass
Coleosanthus cordifolius — Heartleaf Brickellia, Flyr's False-boneset
Colocasia antiquorum — Elephant's-ear, Taro, Dasheen
Colocasia esculenta var. antiquorum — Elephant's-ear, Taro, Dasheen
Colocasia esculenta var. aquatilis — Elephant's-ear, Taro, Dasheen
Colocasia esculenta var. esculenta — Elephant's-ear, Taro, Dasheen
Colocasia esculenta var. nymphiifolia — Elephant's-ear, Taro, Dasheen
Colocasia gigantea — Giant Elephant's-ear, Indian Taro
Comandra richardsiana — Eastern Bastard-toadflax, Eastern Comandra, Star-toadflax
Commelina angustifolia — Sand Dayflower, Pineland Dayflower, Slender Dayflower
Commelina communis var. communis — Asiatic Dayflower, Common Dayflower
Commelina communis var. ludens — Asiatic Dayflower, Common Dayflower
Commelina crispa — Sand Dayflower, Pineland Dayflower, Slender Dayflower
Commelina longicaulis — Spreading Dayflower, Creeping Dayflower
Conradina montana — Cumberland Rosemary
Conradina puberula — Gray Rosemary, Conradina
Consolida ambigua — Rocket Larkspur, Garden Larkspur
Convallaria montana — American Lily-of-the-valley
Convolvulus catesbeianus — Catesby's Bindweed, Catesby's False Bindweed
Convolvulus purshianus — Shale Bindweed
Convolvulus repens — Northeastern Bindweed
Convolvulus sepium var. americanus — Northeastern Bindweed
Convolvulus sepium var. fraterniflorus — Twin-flowered Bindweed, Twoflower Bindweed, Shortstalk False Bindweed
Convolvulus sepium var. repens — Northeastern Bindweed
Convolvulus sepium var. sepium — Appalachian Bindweed
Convolvulus sepium var. sepium — Coastal Plain Bindweed
Conyza canadensis — Common Horseweed
Conyza canadensis — Southern Horseweed
Conyza sumatrensis — Tropical Horseweed, Sumatran Fleabane, Guernsey Fleabane
Coptis groenlandica — Goldthread, Goldenroot, Threeleaf Goldthread
Coptis trifolia ssp. groenlandica — Goldthread, Goldenroot, Threeleaf Goldthread
Coptis trifolia var. groenlandica — Goldthread, Goldenroot, Threeleaf Goldthread
Corallorhiza odontorhiza var. odontorhiza — Autumn Coralroot
Corallorhiza odontorhiza var. pringlei — Autumn Coralroot
Corallorrhiza maculata — Eastern Spotted Coralroot, Summer Coralroot
Corallorrhiza micrantha — Autumn Coralroot
Corallorrhiza odontorhiza — Autumn Coralroot
Corallorrhiza wisteriana — Spring Coralroot, Wister's Coralroot
Corculum leptopus — Love-chain, Queen's-jewels, Confederate-vine, Corallita
Coreopsis cardaminefolia — Plains Coreopsis, Calliopsis, Garden Coreopsis, Golden Tickseed
Coreopsis crassifolia — Lanceleaf Coreopsis, Longstalk Coreopsis, Lanceleaf Tickseed
Coreopsis delphinifolia — Larkspur-leaf Tickseed, Larkspur Coreopsis
Coreopsis gladiata var. linifolia — Savanna Coreopsis, Savanna Tickseed
Coreopsis oniscicarpa + — Savanna Coreopsis, Savanna Tickseed
Coreopsis sp. [Glassy Mtn HP] — a puzzling Coreopsis [Glassy Mtn HP]
Coriflora albicoma — White-haired Leatherflower
Coriflora crispa — Southern Leatherflower, Marsh Clematis, Swamp Leatherflower, Blue Jasmine
Coriflora fremontii — Fremont's Leatherflower
Coriflora glaucophylla — White-leaved Leatherflower
Coriflora ochroleuca — Curlyheads
Coriflora reticulata — Vase-vine, Netleaf Leatherflower
Coriflora versicolor — Pale Leatherflower
Coriflora viticaulis — Millboro Leatherflower
Cornus alba ssp. stolonifera — Red Osier Dogwood, Bailey's Dogwood
Cornus alba var. alba — Red Osier Dogwood, Bailey's Dogwood
Cornus amomum ssp. amomum — Silky Dogwood, Bush Dogwood, Silky Cornel
Cornus foemina ssp. microcarpa — Eastern Roughleaf Dogwood
Cornus foemina ssp. racemosa — Northern Swamp Dogwood, Gray Dogwood
Cornus priceae — Midwestern Roughleaf Dogwood
Cornus sericea — Red Osier Dogwood, Bailey's Dogwood
Cornus stolonifera — Red Osier Dogwood, Bailey's Dogwood
Corydalis micrantha var. australis — Southern Corydalis
Corydalis micrantha var. micrantha — Slender Corydalis
Corylus cornuta ssp. cornuta — Beaked Hazelnut
Cotinus americanus — American Smoketree
Cotoneaster pyracantha — Scarlet Firethorn, Pyracantha
Cracca ambigua — Florida Hoarypea, Florida Goat’s-rue
Cracca hispidula — Sprawling Hoary-pea
Cracca spicata — Spiked Hoary-pea, Brown-hair Tephrosia, Tawny Goat's Rue
Cracca virginiana — Virginia Goat's Rue, Devil's Shoestrings
Crataegus ×palmeri — Palmer's Hawthorn
Crataegus ×vailiae [calpodendron × uniflora] — Vail’s Hawthorn
Crataegus abdita — Bristol Hawthorn
Crataegus abstrusa — Broadleaved Beautiful Hawthorn
Crataegus abstrusa — Beautiful Hawthorn
Crataegus adunca — Alabama Hawthorn
Crataegus adunca — Ravenel's Hawthorn
Crataegus aff. pinetorum — pineland hawthorn
Crataegus agrestina — Allegheny Hawthorn
Crataegus alabamensis var. florens — Mississippi Hawthorn
Crataegus alabamensis var. ravenelii — Ravenel's Hawthorn
Crataegus alabamensis var. teres — Smooth Alabama Hawthorn, Montgomery Hawthorn
Crataegus albicans — Downy Hawthorn
Crataegus algens — Cockspur Hawthorn
Crataegus allagheniensis — Allegheny Hawthorn
Crataegus alleghaniensis var. extraria — Valley Head Hawthorn
Crataegus allegheniensis var. allegheniensis — Allegheny Hawthorn
Crataegus allegheniensis var. ignava — Valley Head Hawthorn
Crataegus allegheniensis var. mira — Allegheny Hawthorn
Crataegus amica — Sandhill Hawthorn
Crataegus amnicola — Hillside Hawthorn
Crataegus ancisa — Beautiful Hawthorn
Crataegus anisophylla — Jacksonville Hawthorn
Crataegus annosa — Bristol Hawthorn
Crataegus apiifolia — Parsley Hawthorn, Parsley Haw
Crataegus arborea — Cockspur Hawthorn
Crataegus arcana — Frosted Hawthorn
Crataegus arguta — Sandhill Hawthorn
Crataegus arnoldiana — Northern Downy Hawthorn, Quebec Hawthorn
Crataegus assimilis — Sargent's Hawthorn
Crataegus attrita — Mississippi Hawthorn
Crataegus attrita — Alabama Hawthorn
Crataegus austrina — Beautiful Hawthorn
Crataegus austromontana — Threeflower Hawthorn
Crataegus basilica — Schuette's Hawthorn
Crataegus biltmoreana — Biltmore Hawthorn
Crataegus boyntoni — Boynton's Hawthorn
Crataegus boyntonii — Boynton's Hawthorn
Crataegus calpodendron var. calpodendron — Pear Hawthorn
Crataegus calpodendron var. globosa — Pear Hawthorn
Crataegus calpodendron var. microcarpa — Pear Hawthorn
Crataegus canadensis — Northern Downy Hawthorn, Quebec Hawthorn
Crataegus canbyi — Cockspur Hawthorn
Crataegus chapmanii — Pear Hawthorn
Crataegus chrysocarpa var. dodgei — Dodge Hawthorn
Crataegus cibaria — Downy Hawthorn
Crataegus cirrata — Jacksonville Hawthorn
Crataegus clara — Ravenel's Hawthorn
Crataegus collina var. collina — Hillside Hawthorn
Crataegus colonica — Colony Hawthorn, Bluffton Hawthorn
Crataegus communis — Straw-fruited Hawthorn, Straw-fruited Entangled Hawthorn
Crataegus compitalis — Ravenel's Hawthorn
Crataegus concinna — Cutleaf Beautiful Hawthorn
Crataegus concinna — Beautiful Hawthorn
Crataegus confusa — Biltmore Hawthorn
Crataegus consanguinea — Sister Hawthorn
Crataegus constans — Lake Ella Hawthorn
Crataegus contrita — Beautiful Hawthorn
Crataegus crocea — Ocala Hawthorn
Crataegus cullasagensis — Allegheny Hawthorn
Crataegus curva — Ocala Hawthorn
Crataegus dodgei var. dodgei — Dodge Hawthorn
Crataegus dodgei var. flavida — Dodge Hawthorn
Crataegus dolosa — Lake Ella Hawthorn
Crataegus egens — Sand Barren Hawthorn
Crataegus eximia — Sargent's Hawthorn
Crataegus extraria — Valley Head Hawthorn
Crataegus flavida — Dodge Hawthorn
Crataegus floridana — Jacksonville Hawthorn
Crataegus fortis — Mississippi Hawthorn
Crataegus fortis — Alabama Hawthorn
Crataegus fortunata — Yellow-fruited Entangled Hawthorn
Crataegus frugalis — Ocala Hawthorn
Crataegus frugiferans — Allegheny Hawthorn
Crataegus galbana — Bristol Hawthorn
Crataegus gattingeri — Gattinger's Hawthorn
Crataegus gattingeri — Frosted Hawthorn
Crataegus gattingeri var. gattingeri — Gattinger's Hawthorn
Crataegus gattingeri var. rigida — Gattinger's Hawthorn
Crataegus geniculata — Dwarf Hawthorn, Restful Hawthorn, Neat Hawthorn
Crataegus geniculata — Woolly Dwarf Hawthorn, Pexa Hawthorn
Crataegus georgiana — Frosted Hawthorn
Crataegus georgiana — Gattinger's Hawthorn
Crataegus germanica — European Medlar
Crataegus gilva — Sargent's Hawthorn
Crataegus gravida — Downy Hawthorn
Crataegus gregalis — Oneflower Hawthorn, Dwarf Haw
Crataegus illudens — Sandhill Hawthorn
Crataegus illustris — Broadleaved Beautiful Hawthorn
Crataegus illustris — Beautiful Hawthorn
Crataegus impar — Valley Head Hawthorn
Crataegus incana — Ocala Hawthorn
Crataegus ingens — Hillside Hawthorn
Crataegus inops — Sandhill Hawthorn
Crataegus insidiosa — Mississippi Hawthorn
Crataegus interior — Green Hawthorn, Greenhaw
Crataegus invicta — Dwarf Hawthorn, Restful Hawthorn, Neat Hawthorn
Crataegus invicta — Woolly Dwarf Hawthorn, Pexa Hawthorn
Crataegus iracunda var. brumalis — Poplar Hawthorn
Crataegus iracunda var. silvicola — Forest Hawthorn, Stolon-bearing Hawthorn
Crataegus lassa — Sandhill Hawthorn
Crataegus lenis — Beautiful Hawthorn
Crataegus leonensis — Sister Hawthorn
Crataegus macilenta — Beautiful Hawthorn
Crataegus macra — Cockspur Hawthorn
Crataegus macrosperma var. macrosperma — Eastern Hawthorn
Crataegus macrosperma var. roanensis — Eastern Hawthorn
Crataegus maloides — Rufous Mayhaw, Florida Mayhaw
Crataegus margaretta — Margaret's Hawthorn, Fireberry Hawthorn
Crataegus margaretta var. margaretta — Margaret's Hawthorn, Fireberry Hawthorn
Crataegus margarettae — Margaret's Hawthorn, Fireberry Hawthorn
Crataegus margarettae var. margarettae — Margaret's Hawthorn, Fireberry Hawthorn
Crataegus margarettiae — Margaret's Hawthorn, Fireberry Hawthorn
Crataegus margarettiae var. margarettiae — Margaret's Hawthorn, Fireberry Hawthorn
Crataegus mercerencis — Dodge Hawthorn
Crataegus meridiana — Sandhill Hawthorn
Crataegus meridionalis — Downy Hawthorn
Crataegus michauxii — Sandhill Hawthorn
Crataegus mohrii — Mohr's Hawthorn
Crataegus monogyna var. monogyna — English Hawthorn, Singleseed Hawthorn, One-seeded Hawthorn
Crataegus munda var. pexa — Woolly Dwarf Hawthorn, Pexa Hawthorn
Crataegus neobushii — Bush Hawthorn
Crataegus neofluvialis — New River Hawthorn
Crataegus opima — Broadleaved Beautiful Hawthorn
Crataegus orbiculata — Sister Hawthorn
Crataegus oreophila — Balsam Mountain Hawthorn
Crataegus padifolia var. padifolia — Yellow-fruited Entangled Hawthorn
Crataegus pedicellata var. ellwangeriana — Pennsylvania Hawthorn
Crataegus penita — Green Hawthorn, Greenhaw
Crataegus pentaneura — Oneflower Hawthorn, Dwarf Haw
Crataegus populifolia — Washington Hawthorn, Virginia Hawthorn
Crataegus populnea — Forest Hawthorn, Stolon-bearing Hawthorn
Crataegus prismatica — Pale-fruited Hawthorn, Birmingham Hawthorn, Pale Hawthorn
Crataegus prona — Poplar Hawthorn
Crataegus pulcherrima var. incilis — Cutleaf Beautiful Hawthorn
Crataegus pulla — Ravenel's Hawthorn
Crataegus pyracantha — Scarlet Firethorn, Pyracantha
Crataegus pyracanthoides — Narrowleaf Cockspur Hawthorn
Crataegus pyracanthoides var. arborea — Narrowleaf Cockspur Hawthorn
Crataegus quaesita — Florida Hawthorn, Gulf Hawthorn
Crataegus raleighensis — Oneflower Hawthorn, Dwarf Haw
Crataegus recurva — Ocala Hawthorn
Crataegus resima — Florida Hawthorn, Gulf Hawthorn
Crataegus reverchonii — Mohr's Hawthorn
Crataegus reverchonii var. mohrii — Mohr's Hawthorn
Crataegus reverchonii var. palmeri — Palmer's Hawthorn
Crataegus rhodella — Britton's Hawthorn
Crataegus rigens — Allegheny Hawthorn
Crataegus roanensis — Eastern Hawthorn
Crataegus robur — Beautiful Hawthorn
Crataegus rubella — Little Red Hawthorn
Crataegus rubella — Straw-fruited Hawthorn, Straw-fruited Entangled Hawthorn
Crataegus rugosa — Frosted Hawthorn
Crataegus rustica — Frosted Hawthorn
Crataegus segnis — Bristol Hawthorn
Crataegus silvicola — Forest Hawthorn, Stolon-bearing Hawthorn
Crataegus sinistra — Engelmann's Hawthorn
Crataegus sodalis — Bristol Hawthorn
Crataegus sodalis — Lake Ella Hawthorn
Crataegus sororia var. sororia — Sister Hawthorn
Crataegus sororia var. visenda — Bristol Hawthorn
Crataegus stolonifera — Poplar Hawthorn
Crataegus stonei — Biltmore Hawthorn
Crataegus straminea — Straw-fruited Hawthorn, Straw-fruited Entangled Hawthorn
Crataegus tecta — Beautiful Hawthorn
Crataegus texana var. dasyphylla — Texas Downy Hawthorn
Crataegus texana var. texana — Texas Downy Hawthorn
Crataegus torva — Engelmann's Hawthorn
Crataegus tristis — Bristol Hawthorn
Crataegus uniflora var. brittonii — Britton's Hawthorn
Crataegus uniflora var. uniflora — Oneflower Hawthorn, Dwarf Haw
Crataegus venusta var. pallens — Pale-fruited Hawthorn, Birmingham Hawthorn, Pale Hawthorn
Crataegus venusta var. venusta — Red Mountain Hawthorn
Crataegus versuta — Jacksonville Hawthorn
Crataegus viaria — Jacksonville Hawthorn
Crataegus vicinalis — Frosted Hawthorn
Crataegus villaris — Ocala Hawthorn
Crataegus villicarpa — Biltmore Hawthorn
Crataegus viridis + — Green Hawthorn, Greenhaw
Crataegus viridis var. lanceolata — Green Hawthorn, Greenhaw
Crataegus viridis var. ovata — Green Hawthorn, Greenhaw
Crataegus viridis var. velutina — Green Hawthorn, Greenhaw
Crataegus vulsa — Green Hawthorn, Greenhaw
Crataegus yadkinensis — Dwarf Hawthorn, Restful Hawthorn, Neat Hawthorn
Crataegus yadkinensis — Woolly Dwarf Hawthorn, Pexa Hawthorn
Crataegus youngii — Washington Hawthorn, Virginia Hawthorn
Cristella quadrangularis — Hairy Maiden Fern
Crookea microsepala — Flatwoods St. Johnswort
Crotalaria retzii — Showy Rattlebox
Crotalaria striata — Smooth Rattlebox
Croton alabamensis — Alabama Croton
Croton glandulosus var. angustifolius — Doveweed, Tooth-leaved Croton, Sand Croton, Northern Croton
Croton glandulosus var. simpsonii — Doveweed, Tooth-leaved Croton, Sand Croton, Northern Croton
Croton michauxii var. elliptica — Outcrop Rushfoil, Willdenow's Croton, Glade Rushfoil, Broadleaf Rushfoil
Croton michauxii var. michauxii — Sand Rushfoil, Michaux's Croton, Narrowleaf Rushfoil
Cucumis melo ssp. melo var. cantalupo — Canteloupe, Muskmelon
Cucumis melo var. melo — Canteloupe, Muskmelon
Cucumis sativus var. sativus — Cucumber
Cucurbita melopepo ssp. melopepo — Crookneck Squash, Straightneck Squash, Acorn Squash, Spaghetti Squash
Cucurbita melopepo ssp. melopepo var. melopepo — Crookneck Squash, Straightneck Squash, Acorn Squash, Spaghetti Squash
Cucurbita pepo ssp. pepo — Pumpkin, Zucchini, Ornamental Gourd, Vegetable Marrow
Cuphea petiolata — Clammy Cuphea, Blue Waxweed
Cupressus ×leylandii — Leyland Cypress
Cupressus arizonica — Arizona Cypress
Cuscuta compacta var. efimbriata — Compact Dodder
Cuscuta glandulosa — Glandular Dodder
Cuscuta gronovii var. calyptrata — Common Dodder, Swamp Dodder
Cuscuta gronovii var. gronovii — Common Dodder, Swamp Dodder
Cuscuta gronovii var. latiflora — Common Dodder, Swamp Dodder
Cuscuta indecora var. attenuata — Bigseed Alfalfa Dodder, Pretty Dodder
Cuscuta indecora var. indecora — Bigseed Alfalfa Dodder, Pretty Dodder
Cuscuta indecora var. longisepala — Bigseed Alfalfa Dodder, Pretty Dodder
Cuscuta indecora var. neuropetala — Bigseed Alfalfa Dodder, Pretty Dodder
Cuscuta japonica var. formosana — Japanese Dodder
Cuscuta pentagona var. pubescens — Five-angled Dodder
Cyanococcus amoenus — Rabbiteye Blueberry, Swamp Blueberry, Rabbitberry, Smallflower Blueberry
Cyanococcus atrococcus — Hairy Highbush Blueberry, Black Highbush Blueberry
Cyanococcus corymbosus — Smooth Highbush Blueberry, Northern Highbush Blueberry
Cyanococcus elliottii — Mayberry, Elliott's Blueberry
Cyanococcus fuscatus — Hairy Highbush Blueberry, Black Highbush Blueberry
Cyanococcus hirsutus — Woollyberry, Hairy Blueberry, Low-lowbush Blueberry
Cyanococcus liparis — Blue Ridge Blueberry
Cyanococcus myrsinites var. glaucum — Darrow's Blueberry
Cyanococcus myrsinites var. myrsinites — Southern Evergreen Blueberry
Cyanococcus pallidus — Hillside Blueberry, Dryland Blueberry, Upland Low Blueberry, Lowbush Blueberry
Cyanococcus simulatus — Mountain Highbush Blueberry
Cyanococcus subcordatus — Blue Ridge Blueberry
Cyanococcus tenellus — Southern Dwarf Blueberry, Small Cluster Blueberry, Small Cluster Blueberry, Narrowleaf Blueberry
Cyanococcus vacillans — Hillside Blueberry, Dryland Blueberry, Upland Low Blueberry, Lowbush Blueberry
Cyanococcus virgatus — Southern Highbush Blueberry, Swamp Highbush Blueberry
Cyclodon alabamense — Alabama Milkvine, Alabama Spinypod
Cyclosorus dentatus — Downy Maiden-fern, Soft Fern, Downy Shield-fern
Cyclosorus hispidulus — Hairy Maiden Fern
Cyclosorus kunthii — Kunth's Maiden-fern, Southern Shield-fern, Southern Woodfern
Cyclosorus ovatus var. ovatus — Ovate Maiden Fern, ovate marsh fern
Cynanchum nigrum — Black Swallow-wort, Dog-Strangling Vine
Cynoctonum angustifolium — Narrow-leaved Miterwort
Cynodon dactylon var. affinis — Bermuda Grass, Scutch Grass
Cynodon dactylon var. dactylon — Bermuda Grass, Scutch Grass
Cynoglossum virginicum — Southern Wild Comfrey, Southern Hound’s-tongue
Cynoxylon floridum — Flowering Dogwood
Cynoxylon kousa — Kousa Dogwood
Cynthia dandelion — Colonial Dwarf-dandelion, Potato Dwarf-dandelion
Cynthia montana — Mountain Dwarf-dandelion, Mountain Cynthia
Cynthia virginica — Orange Dwarf-dandelion, Two-flower Dwarf-dandelion, Two-flower Cynthia, Twin-flowered Cynthia
Cyperus esculentus var. sativus — Yellow Nutsedge, Yellow Nutgrass, Wild Chufa, Earth-almond
Cyperus ferax — Fragrant Flatsedge
Cyperus ferruginescens — Fragrant Flatsedge
Cyperus halei — Redroot Flatsedge
Cyperus inflexus — Granite Flatsedge
Cyperus inflexus — Awned Flatsedge, Bearded Flatsedge
Cyperus longispicatus — Fragrant Flatsedge
Cyperus lutescens — Yellow Nutsedge, Yellow Nutgrass, Wild Chufa, Earth-almond
Cyperus multiflorus — Baldwin's Flatsedge
Cyperus odoratus var. engelmannii — Slender Sand Flatsedge, Engelmann's Flatsedge
Cyperus plankii — Baldwin's Flatsedge
Cyperus praelongatus — False Nutsedge, Straw Flatsedge, Straw-colored Flatsedge
Cyperus retrofractus var. dipsaciformis — Rough Flatsedge
Cyperus retrofractus var. retrofractus — Starburst Flatsedge, Plukenet’s Flatsedge, Plukenet’s Sedge
Cyperus retrorsus var. robustus — Baldwin's Flatsedge
Cyperus speciosus — Fragrant Flatsedge
Cyperus torreyi — Pineland Flatsedge, Pine-barren Flatsedge
Cypripedium calceolus var. parviflorum — Small Yellow Lady's Slipper
Cypripedium parviflorum — Small Yellow Lady's Slipper
Cypripedium pubescens — Large Yellow Lady's Slipper
Cypripedium pubescens — Kentucky Yellow Lady's Slipper
Cyrtomium fortunei var. fortunei — Fortune's Holly-fern, Fortune's Net-veined Holly Fern
Cystopteris ×tennesseensis — Tennessee Bladder Fern
Cystopteris fragilis var. fragilis — Fragile Fern, Brittle Fern, Brittle Bladder Fern
Cystopteris fragilis var. mackayi — Mackay's Bladder Fern, Mackay's Fragile Fern, Upland Bladder Fern
Cystopteris fragilis var. protrusa — Lowland Bladder Fern, Spreading Bladder Fern
Dalea carnea var. albida — White-tassels
Dalea carnea var. carnea — Pink-tassels
Dalea carnea var. gracilis — Sprawling White-tassels
Dalea gracilis — Sprawling White-tassels
Dasystephana andrewsii — Prairie Closed Gentian, Closed Bottle Gentian
Dasystephana decora — Appalachian Gentian, Showy Gentian
Dasystephana decora — Meadow Closed Gentian, Meadow Bottle Gentian
Dasystephana decora — Blue Ridge Gentian, Appalachian Gentian, Pine Barren Gentian
Dasystephana decora — Balsam Mountain Gentian
Dasystephana flavida — Pale Gentian, Plain Gentian
Dasystephana latifolia — Coastal Plain Gentian, Catesby's Gentian, Elliott's Gentian
Dasystephana parvifolia — Coastal Plain Gentian, Catesby's Gentian, Elliott's Gentian
Dasystephana porphyrio — Pinebarren Gentian, Autumn Gentian
Dasystephana saponaria — Soapwort Gentian, Harvestbells
Dasystephana villosa — Striped Gentian
Dasystoma macrophylla — Mullein Foxglove
Daubentonia drummondii — Rattlebox, Poison-bean, Siene Bean
Decachaena baccata — Black Huckleberry, Crackleberry
Decachaena frondosa — Dangleberry
Decachaena nana — Dwarf Dangleberry, Confederate Huckleberry
Decachaena tomentosa — Woolly Dangleberry, Hairy Dangleberry, Hairytwig Huckleberry
Decachaena ursina — Bear Huckleberry, Buckberry, Mountain Huckleberry, Bearberry
Decemium appendiculatum — Biennial Waterleaf, Great Waterleaf
Delopyrum gracile — Wireweed, Tall Jointweed
Delphinium ambiguum — Rocket Larkspur, Garden Larkspur
Delphinium carolinianum var. carolinianum — Prairie Larkspur, Carolina Larkspur, Blue Larkspur, Ozark Larkspur
Delphinium carolinianum var. carolinianum — Glade Larkspur, Limestone Larkspur, Tennessee Larkspur
Delphinium virescens — Glade Larkspur, Limestone Larkspur, Tennessee Larkspur
Dendropogon usneoides — Spanish-moss, Long-moss
Dentaria diphylla — Broadleaf Toothwort, Crinkleroot, Pepperroot, Two-leaved Toothwort
Dentaria heterophylla — Eastern Slender Toothwort
Dentaria incisa — Broadleaf Toothwort, Crinkleroot, Pepperroot, Two-leaved Toothwort
Dentaria laciniata — Cutleaf Toothwort
Dentaria multifida — Dissected Toothwort, Fineleaf Toothwort, Forkleaf Toothwort
Deringa canadensis — Honewort
Deschampsia caespitosa — Tufted Hairgrass
Deschampsia caespitosa ssp. caespitosa — Tufted Hairgrass
Deschampsia cespitosa ssp. cespitosa — Tufted Hairgrass
Deschampsia flexuosa var. flexuosa — Appalachian Hairgrass, Crinkled Hairgrass, Common Hairgrass, Wavy Hairgrass
Deschampsia flexuosa var. montana — Appalachian Hairgrass, Crinkled Hairgrass, Common Hairgrass, Wavy Hairgrass
Desmodium ciliare var. lancifolium — Hairy Small-leaf Tick-trefoil, Littleleaf Tick-trefoil
Desmodium cuspidatum var. longifolium — Long-bracted Tick-trefoil, Toothed Tick-trefoil, Largebract Tick-trefoil
Desmodium marilandicum var. ciliare — Hairy Small-leaf Tick-trefoil, Littleleaf Tick-trefoil
Desmodium marilandicum var. lancifolium — Stiff Tick-trefoil
Desmodium marilandicum var. marilandicum — Smooth Small-leaf Tick-trefoil, Maryland Tick-trefoil
Desmodium paniculatum var. dillenii — Tall Tick-trefoil, Dillen's Tick-trefoil
Desmodium paniculatum var. dillenii — Perplexing Tick-trefoil, Dillen's Tick-trefoil
Desmodium paniculatum var. fernaldii — Fernald's Tick-trefoil
Desmodium rigidum — Stiff Tick-trefoil
Desmothamnus lucidus — Shining Fetterbush, Lyonia, Hemleaf
Diamorpha cymosa — Elf-orpine
Dianthera americana — American Water-willow
Dianthus armeria ssp. armeria — Deptford Pink
Diapedium brachiatum — Branched Foldwing, Dicliptera
Diaphoranthema recurvata — Ball-moss, Bunch-moss
Dicerandra linearifolia — coastal plain balm
Dichanthelium aciculare ssp. aciculare — Needleleaf Witchgrass, Needleleaf Rosette Grass
Dichanthelium aciculare ssp. angustifolium — Sandy Woods Witchgrass
Dichanthelium aciculare ssp. angustifolium — Narrowleaf Witchgrass
Dichanthelium aciculare ssp. fusiforme — Spindle-fruited Witchgrass
Dichanthelium aciculare ssp. neuranthum — Nerved Witchgrass
Dichanthelium acuminatum — White-haired Witchgrass
Dichanthelium acuminatum — Pineland Witchgrass
Dichanthelium acuminatum ssp. acuminatum — Woolly Witchgrass, Woolly Rosette Grass, Tapered Rosette Grass
Dichanthelium acuminatum ssp. columbianum — American Witchgrass
Dichanthelium acuminatum ssp. fasciculatum — Slender-stemmed Witchgrass, Western Woolly Witchgrass
Dichanthelium acuminatum ssp. lindheimeri — Lindheimer's Witchgrass
Dichanthelium acuminatum ssp. longiligulatum — Long-ligule Witchgrass, Coastal Plain Witchgrass
Dichanthelium acuminatum var. implicatum — Slender-stemmed Witchgrass, Western Woolly Witchgrass
Dichanthelium acuminatum var. longiligulatum — Long-ligule Witchgrass, Coastal Plain Witchgrass
Dichanthelium acuminatum var. villosum — White-haired Witchgrass
Dichanthelium dichotomum ssp. dichotomum — Forked Witchgrass
Dichanthelium dichotomum ssp. lucidum — Bog Witchgrass
Dichanthelium dichotomum ssp. lucidum — Peaty Witchgrass
Dichanthelium dichotomum ssp. mattamuskeetense — Ringed Witchgrass
Dichanthelium dichotomum ssp. mattamuskeetense — Mattamuskeet Witchgrass
Dichanthelium dichotomum ssp. microcarpon — Small-fruited Witchgrass
Dichanthelium dichotomum ssp. nitidum — Shining Witchgrass
Dichanthelium dichotomum ssp. roanokense — Blue Witchgrass
Dichanthelium dichotomum ssp. roanokense — Roanoke Witchgrass
Dichanthelium dichotomum ssp. yadkinense — Spotted-sheath Witchgrass
Dichanthelium dichotomum var. ramulosum — Small-fruited Witchgrass
Dichanthelium dichotomum var. roanokense — Roanoke Witchgrass
Dichanthelium leucoblepharis var. glabrescens — Hairless Witchgrass
Dichanthelium leucoblepharis var. leucoblepharis — Dwarf Witchgrass
Dichanthelium leucoblepharis var. pubescens — Rough-hairy Witchgrass
Dichanthelium leucothrix — Long-ligule Witchgrass, Coastal Plain Witchgrass
Dichanthelium lindheimeri — Lindheimer's Witchgrass
Dichanthelium oligosanthes ssp. oligosanthes — Few-flowered Witchgrass, Heller's Witchgrass
Dichanthelium ovale ssp. villosissimum — White-haired Witchgrass
Dichanthelium portoricense — American Witchgrass
Dichanthelium strigosum ssp. glabrescens — Hairless Witchgrass
Dichanthelium strigosum ssp. leucoblepharis — Dwarf Witchgrass
Dichanthelium strigosum ssp. strigosum — Rough-hairy Witchgrass
Dichondra repens var. carolinensis — Carolina Ponyfoot
Dicliptera viridiflora — Yellow Bractspike
Digitalis purpurea var. alba — Digitalis, Common Foxglove, Purple Foxglove
Digitalis purpurea var. purpurea — Digitalis, Common Foxglove, Purple Foxglove
Digitaria ischaemum var. mississippiensis — Smooth Crabgrass
Digitaria sanguinalis var. ciliaris — Southern Crabgrass
Digitaria sanguinalis var. sanguinalis — Hairy Crabgrass, Northern Crabgrass
Diodella teres — Poor-joe, Rough Buttonweed
Diodia hirsuta — Virginia Buttonweed, Large Buttonweed
Diodia teres var. hirsutior — Poor-joe, Rough Buttonweed
Diodia teres var. hystricina — Poor-joe, Rough Buttonweed
Diodia teres var. oblongifolia — Poor-joe, Rough Buttonweed
Diodia teres var. teres — Poor-joe, Rough Buttonweed
Diodia tetragona — Virginia Buttonweed, Large Buttonweed
Diodia virginiana var. attenuata — Virginia Buttonweed, Large Buttonweed
Diodia virginiana var. latifolia — Virginia Buttonweed, Large Buttonweed
Diodia virginiana var. virginiana — Virginia Buttonweed, Large Buttonweed
Dioscorea glauca — Common Wild Yam, Streamhead Yam, Yellow Yam
Dioscorea hirticaulis — Common Wild Yam, Streamhead Yam, Yellow Yam
Dioscorea quaternata — Common Wild Yam, Streamhead Yam, Yellow Yam
Dioscorea villosa var. hirticaulis — Common Wild Yam, Streamhead Yam, Yellow Yam
Diospyros mosieri — American Persimmon, Possumwood, Simmon
Diplazium acrostichoides — Silvery Glade Fern, Silvery Spleenwort
Diplostachyum apodum — Meadow Spikemoss
Diplostachyum ludovicianum — Louisiana Spikemoss, Gulf Spikemoss
Dipsacus fullonum ssp. sylvestris — Wild Teasel, Common Teasel
Disakisperma dubia — Green Sprangletop
Ditremexa marylandica — Northern Wild Senna
Ditremexa medsgeri — Maryland Wild Senna, Maryland Senna
Dodecatheon brachycarpa — Eastern Shooting Star
Dodecatheon hugeri — Eastern Shooting Star
Dodecatheon meadia ssp. brachycarpum — Eastern Shooting Star
Doellingeria humilis — Pocosin Flat-top Aster, Southern Whitetop, Streamhead Flat-top Aster, Southern Flat-top Aster
Doellingeria reticulata — Pine-barren Aster, Whitetop Aster
Doellingeria umbellata — Northern Tall Flat-top White Aster, Northern Tall Whitetop Aster, Northern Tall Flat-top Aster
Dondia linearis — Southern Sea-blite
Dracocephalum denticulatum — Savanna Obedient-plant, Eastern False Dragonhead
Dracocephalum leptophyllum — Tidal Marsh Obedient-plant, Swamp Obedient-plant, Narrowleaf Obedient-plant, Slenderleaf False Dragonhead
Dracocephalum veroniciformis — Tidal Marsh Obedient-plant, Swamp Obedient-plant, Narrowleaf Obedient-plant, Slenderleaf False Dragonhead
Drosera filiformis var. tracyi — Tracy's Sundew
Drosera rotundifolia var. comosa — Roundleaf Sundew
Drymaria cordata — Drymary, West Indian Chickweed, Heartleaf Drymary
Dryopteris ×australis — Southern Woodfern, Southern Shield-fern, Dixie Woodfern
Dryopteris atropalustris — Log Fern
Dryopteris austriaca var. austriaca — Mountain Woodfern
Dryopteris austriaca var. intermedia — Evergreen Woodfern, Fancy Fern, Intermediate Woodfern
Dryopteris austriaca var. spinulosa — Spinulose Woodfern, Toothed Woodfern
Dryopteris clintoniana var. australis — Southern Woodfern, Southern Shield-fern, Dixie Woodfern
Dryopteris goldiana ssp. celsa — Log Fern
Dryopteris goldiana ssp. goldiana — Goldie's Woodfern
Dryopteris hexagonoptera — Broad Beech Fern
Dryopteris noveboracensis — New York Fern
Dryopteris phegopteris — Northern Beech Fern
Dryopteris setigera — Mariana Maiden-fern, Swordfern, False Maiden-fern
Dryopteris simulata — Bog Fern, Massachusetts Fern
Dryopteris spinulosa var. americana — Mountain Woodfern
Dryopteris spinulosa var. intermedia — Evergreen Woodfern, Fancy Fern, Intermediate Woodfern
Dryopteris spinulosa var. spinulosa — Spinulose Woodfern, Toothed Woodfern
Dryopteris thelypteris var. pubescens — Marsh Fern
Duchesnea indica var. indica — Indian Strawberry, Mock Strawberry
Echinacea angustifolia var. tennesseensis — Tennessee Purple Coneflower, Tennessee Coneflower
Echinacea atrorubens var. paradoxa — Yellow Coneflower
Echinacea pallida var. angustifolia — Tennessee Purple Coneflower, Tennessee Coneflower
Echinacea pallida var. pallida — Pale Purple Coneflower
Echinacea pallida var. simulata — Prairie Purple Coneflower, Wavyleaf Purple Coneflower, Glade Coneflower
Echinacea pallida var. tennesseensis — Tennessee Purple Coneflower, Tennessee Coneflower
Echinacea paradoxa — Yellow Coneflower
Echinacea purpurea var. laevigata — Smooth Coneflower, Smooth Purple Coneflower
Echinacea purpurea var. purpurea — Eastern Purple Coneflower
Echinochloa crus-galli ssp. crus-galli — Rough Barnyard-grass
Echinochloa crus-galli ssp. crus-galli — Barnyard-grass
Echinochloa crus-galli ssp. crus-galli — Rough Barnyard-grass
Echinochloa crus-pavonis — gulf cockspur grass
Echinochloa microstachya — Rough Barnyard-grass
Echinochloa muricata — Rough Barnyard-grass
Echinodorus cordifolius ssp. cordifolius — Creeping Burhead, Creeping Water-plantain
Echinodorus parvulus — Mud-babies, Dwarf-burhead, Pigmy Chain-sword
Echinodorus radicans — Creeping Burhead, Creeping Water-plantain
Edgeworthia gardneri — Paperbush, Mitsumata
Edgeworthia tomentosa — Paperbush, Mitsumata
Edisonia pubiflora — Trailing Milkvine, Sandhill Spinypod
Elaeagnus multiflorus — Cherry Elaeagnus, Cherry Silverberry
Elaeagnus umbellatus — Autumn-olive, Spring Silverberry, Oriental Silverleaf
Elaeodendron fortunei — Wintercreeper, Climbing Euonymus, Chinese Spindle-tree
Eleocharis capillacea — Baldwin's Spikerush, Slender Spikerush, Roadgrass, Hair Grass
Eleocharis ovata — Blunt Spikerush
Eleocharis prolifera — Baldwin's Spikerush, Slender Spikerush, Roadgrass, Hair Grass
Elodea densa — Brazilian Waterweed, Brazilian Egeria, "Brazilian Elodea", "Anacharis"
Elymus hystrix — Common Bottlebrush Grass, Eastern Bottlebrush-grass
Elymus striatus — Virginia Wild-rye, Common Eastern Wild-rye, Terrell Grass
Elymus virginicus var. glabriflorus — Southeastern Wild-rye
Elytrigia repens — Quackgrass, Dog-grass, Witchgrass
Emelista tora — Coffeeweed, Sicklepod
Endorima atropurpurea — Purple-disk Honeycomb-head, Bog Honeycomb-head, Purple Balduina, Purple Honeycomb-head
Endorima uniflora — Savanna Honeycomb-head, Yellow Balduina, Oneflower Honeycomb-head
Endymion nonscripta — English Bluebell
Epibaterium carolinum — Carolina Moonseed, Coralbeads, Carolina Snailseed, Red Moonseed
Epidendrum conopseum var. conopseum — Green-fly Orchid
Epidendrum conopseum var. mexicanum — Green-fly Orchid
Epidendrum magnoliae — Green-fly Orchid
Epidendrum magnoliae var. mexicanum — Green-fly Orchid
Epilobium adenocaulon var. adenocaulon — Fringed Willowherb, American Willowherb
Epilobium angustifolium var. platyphyllum — Great Willowherb, Fireweed
Epilobium glandulosum var. adenocaulon — Fringed Willowherb, American Willowherb
Equisetum hyemale ssp. affine — Tall Scouring-rush, River Scouring-rush
Eragrostis glomerata — Pond Lovegrass
Eragrostis hirsuta var. hirsuta — Bigtop Lovegrass
Eragrostis hirsuta var. laevivaginata — Bigtop Lovegrass
Eragrostis multicaulis — India Lovegrass
Erechtites hieraciifolia var. hieraciifolia — Fireweed, American Burnweed, Pilewort
Erianthus brevibarbis var. contortus — Bent-awn Plumegrass
Erianthus coarctatus var. coarctatus — Short-beard Plumegrass
Erianthus coarctatus var. coarctatus — Brown Plumegrass, Bunched Plumegrass
Erianthus coarctatus var. elliottianus — Short-beard Plumegrass
Erianthus coarctatus var. elliottianus — Brown Plumegrass, Bunched Plumegrass
Erianthus divaricatus — Silver Plumegrass
Erianthus ravennae var. purpurascens — Ravenna-grass, Hardy Pampas Grass
Erianthus ravennae var. ravennae — Ravenna-grass, Hardy Pampas Grass
Erianthus saccharoides — Sugarcane Plumegrass, Giant Plumegrass
Erigeron ramosus — Daisy Fleabane, Common Rough Fleabane, Prairie Fleabane, Slender Daisy Fleabane
Erigeron strigosus var. beyrichii — Daisy Fleabane, Common Rough Fleabane, Prairie Fleabane, Slender Daisy Fleabane
Eriochloa michauxii — Longleaf Cupgrass
Eruca eruca — Arugula, Garden Rocket, Rocket-salad, Salad-rocket
Eruca sativa — Arugula, Garden Rocket, Rocket-salad, Salad-rocket
Eryngium baldwini — Baldwin's eryngo, Baldwin's button snakeroot
Eryngium ludovicianum — Savanna Eryngo, Blueflower Eryngo
Eryngium synchaetum — Southern Rattlesnake-master
Eryngium virginianum — Marsh Eryngo
Erysimum officinale — Hedge Mustard
Erythrina arborea — Coral-bean, Cardinal-spear
Erythronium albidum var. albidum — White Trout Lily, Blonde Lilian, White Fawnlily
Eubotrys elongata — Coastal Fetterbush, Swamp Sweetbells, Swamp Leucothoe, Swamp Fetterbush
Eubotrys racemosa — Coastal Fetterbush, Swamp Sweetbells, Swamp Leucothoe, Swamp Fetterbush
Eubotrys recurva — Mountain Sweetbells, Mountain Fetterbush, Deciduous Fetterbush
Euchlaena perennis — Mexican Teosinte
Eulalia viminea — Japanese Stiltgrass, Japanese-grass, Nepalese Browntop, Nepal Grass
Euonymus alata — Burning-bush, Winged Euonymus, Winged Wahoo
Euonymus americana — Hearts-a-bustin', Strawberry-bush
Euonymus atropurpurea var. atropurpurea — American Wahoo, Eastern Wahoo, Burning Bush
Euonymus hederaceus — Wintercreeper, Climbing Euonymus, Chinese Spindle-tree
Euonymus japonica — Japanese Spindle-tree, Japanese Euonymus
Euonymus kiautschovica — Wintercreeper, Climbing Euonymus, Chinese Spindle-tree
Euonymus kiautschovicus — Wintercreeper, Climbing Euonymus, Chinese Spindle-tree
Euonymus obovata — Running Strawberry-bush, Trailing Strawberry-bush, Trailing Wahoo
Eupatoriadelphus dubius — Coastal Plain Joe-pye-weed, Three-nerved Joe-pye-weed
Eupatoriadelphus fistulosus — Hollow-stem Joe-pye-weed
Eupatoriadelphus maculatus — Spotted Joe-pye-weed
Eupatoriadelphus steelei — Appalachian Joe-pye-weed, Steele's Joe-pye-weed
Eupatorium ×cordigerum — Clasping Roundleaf Thoroughwort, Clasping Roundleaf Eupatorium
Eupatorium album var. glandulosum — White Boneset, White-bracted Thoroughwort, White Thoroughwort, White Eupatorium
Eupatorium album var. vaseyi — Vasey's Thoroughwort, Vasey's Eupatorium
Eupatorium album var. vaseyi — Fernald’s Thoroughwort, Fernald’s Eupatorium
Eupatorium chapmanii — Boneset
Eupatorium cuneatum — Boneset
Eupatorium cuneifolium var. semiserratum — Threeleaf Eupatorium, Smallflower Thoroughwort, Olive Eupatorium
Eupatorium hyssopifolium var. calcaratum — Hyssopleaf Boneset, Hyssopleaf Thoroughwort, Hyssopleaf Eupatorium
Eupatorium hyssopifolium var. linearifolium — Narrowleaf Bushy Thoroughwort, Twisted Eupatorium, Narrowleaf Bushy Eupatorium
Eupatorium latidens — Small-leaved White Snakeroot, Aromatic Snakeroot, Wild-hoarhound, Small White Snakeroot
Eupatorium lecheifolium — Hyssopleaf Boneset, Hyssopleaf Thoroughwort, Hyssopleaf Eupatorium
Eupatorium maculatum var. maculatum — Spotted Joe-pye-weed
Eupatorium purpureum var. purpureum — Purple-node Joe-pye-weed, Sweet Joe-pye-weed
Eupatorium purpureum var. purpureum — Carolina Joe-Pye-weed, Downy Sweet Joe-Pye-weed
Eupatorium roanensis — Appalachian White Snakeroot, Appalachian Milk-poison, Appalachian Snakeroot
Eupatorium rotundifolium var. saundersii — Rough Boneset, Ragged Eupatorium
Eupatorium rugosum var. roanense — Appalachian White Snakeroot, Appalachian Milk-poison, Appalachian Snakeroot
Eupatorium rugosum var. rugosum — Common White Snakeroot, Common Milk-poison
Eupatorium sessilifolium — Upland Boneset, Sessile-leaf Eupatorium
Eupatorium sessilifolium — Britton's Upland Boneset, Britton's Eupatorium
Eupatorium sessilifolium — Godfrey's Thoroughwort, Godfrey's Eupatorium
Eupatorium sessilifolium — Hyssopleaf Boneset, Hyssopleaf Thoroughwort, Hyssopleaf Eupatorium
Eupatorium steelei — Appalachian Joe-pye-weed, Steele's Joe-pye-weed
Eupatorium tortifolium — Narrowleaf Bushy Thoroughwort, Twisted Eupatorium, Narrowleaf Bushy Eupatorium
Eupatorium trifoliatum — Carolina Joe-Pye-weed, Downy Sweet Joe-Pye-weed
Eupatorium trifoliatum — Purple-node Joe-pye-weed, Sweet Joe-pye-weed
Eupatorium urticifolium — Common White Snakeroot, Common Milk-poison
Eupatorium verbenaefolium — Rough Boneset, Ragged Eupatorium
Euphorbia arundelana — Carolina Ipecac, Wild Ipecac, American Ipecac
Euphorbia commutata var. commutata — Woodland Spurge, Tinted Spurge, Wood Spurge
Euphorbia commutata var. erecta — Woodland Spurge, Tinted Spurge, Wood Spurge
Euphorbia corollata var. mollis — Eastern Flowering Spurge
Euphorbia corollata var. paniculata — False Flowering Spurge, Southeastern Flowering Spurge, Southern Flowering Spurge
Euphorbia esula — Wolf's-milk, Leafy Spurge
Euphorbia esula ssp. esula — Wolf's-milk, Leafy Spurge
Euphorbia heterophylla var. heterophylla — Wild Poinsettia, Painted Leaf, Fire-on-the-mountain
Euphorbia lathyrus — Caper Spurge, Myrtle Spurge, Mole Plant
Euphorbia marilandica — Eastern Flowering Spurge
Euphorbia preslii — Eyebane, Upright Spotted Spurge, Nodding Spurge
Euphorbia zinniiflora — False Flowering Spurge, Southeastern Flowering Spurge, Southern Flowering Spurge
Euthamia ×hirtipes — Marsh Flattop Goldenrod
Euthamia ×hirtipes — Mid-atlantic Goldentop
Euthamia graminifolia var. hirtipes — Marsh Flattop Goldenrod
Euthamia hirtipes — Marsh Flattop Goldenrod
Euthamia minor — Carolina Goldentop, Slender Flattop Goldenrod
Euthamia tenuifolia — Carolina Goldentop, Slender Flattop Goldenrod
Euthamia tenuifolia var. microcephala — Carolina Goldentop, Slender Flattop Goldenrod
Eutrochium maculatum — Spotted Joe-pye-weed
Facelis apiculata — Trampweed, Fluffweed
Fagopyrum sagittatum — Buckwheat
Falcata comosa — American Hog-peanut
Fallopia aubertii — Lace Vine, Silver-lace-vine, China Fleece-vine, Russian Vine
Fallopia cilinodis — Fringed Climbing Buckwheat, Fringed Black Bindweed, Fringed Bindweed
Fallopia cristata — Common Climbing Buckwheat
Fallopia japonica — Japanese Knotweed, Japanese Bamboo, Japanese Buckwheat
Fallopia japonica var. japonica — Japanese Knotweed, Japanese Bamboo, Japanese Buckwheat
Fallopia sachalinensis — Giant Knotweed, Sachaline
Festuca arundinacea — Tall Fescue, Alta Fescue
Festuca elatior var. arundinacea — Tall Fescue, Alta Fescue
Festuca elatior var. pratensis — Meadow Fescue
Festuca ovina var. duriuscula — Hard Fescue
Festuca ovina var. ovina — Hard Fescue
Festuca perennis — Italian Ryegrass, Annual Ryegrass
Festuca perennis — English Ryegrass, Perennial Ryegrass
Festuca pratensis — Meadow Fescue
Festuca shortii — Cluster Fescue
Festuca temulentum — Darnel Ryegrass, Darnel
Ficaria calthifolia — Fig Buttercup, Lesser Celandine, Pilewort
Ficaria fertilis — Fig Buttercup, Lesser Celandine, Pilewort
Ficaria grandiflora — Fig Buttercup, Lesser Celandine, Pilewort
Ficaria verna — Fig Buttercup, Lesser Celandine, Pilewort
Filipendula ulmaria var. ulmaria — Queen-of-the-Meadow, Meadowsweet
Fimbristylis harperi — Carolina Fimbry
Fissipes acaulis — Pink Lady's Slipper, Mocassin Flower
Foeniculum foeniculum — Fennel
Forestiera globularis — Florida-privet, Florida Forestiera
Forestiera pinetorum — Florida-privet, Florida Forestiera
Forestiera porulosa — Florida-privet, Florida Forestiera
Forestiera pubescens — Godfrey's Forestiera
Forestiera segregata var. pinetorum — Florida-privet, Florida Forestiera
Forsythia ×intermedia [suspensa × viridissima] — Border Forsythia, showy forsythia
Fothergilla gardeni — Coastal Witch-alder, Pocosin Witch-alder, Dwarf Witch-alder, Fothergilla
Fragaria ×ananassa ssp. ananassa — Garden Strawberry, Cultivated Strawberry
Fragaria ananasa ssp. ananasa — Garden Strawberry, Cultivated Strawberry
Fragaria ananassa — Garden Strawberry, Cultivated Strawberry
Fragaria australis — Wild Strawberry
Fragaria chiloensis × virginiana — Garden Strawberry, Cultivated Strawberry
Fragaria chiloensis var. ananassa — Garden Strawberry, Cultivated Strawberry
Fragaria grayana — Wild Strawberry
Fragaria vesca var. americana — Wood Stawberry, American Woodland Strawberry
Fragaria virginiana ssp. grayana — Wild Strawberry
Fragaria virginiana var. virginiana — Wild Strawberry
Fraxinus darlingtonii — Green Ash, Red Ash
Fraxinus michauxii — Pumpkin Ash
Froelichia braunii — Slender Cottonweed
Fumaria officinalis ssp. wirtgenii — Fumitory, Earthsmoke
Funastrum angustifolium — Swallow-wort, Sand-vine, Gulf Coast Swallow-wort, Marsh Cynanchum
Gaillardia chrysantha — Yellow Sandhill Gaillardia, Yellow Prairie Gaillardia
Gaillardia drummondii — Common Blanket-flower, Gaillardia, Firewheel, Indian Blanket Flower
Gaillardia lanceolata — Sandhill Gaillardia, Rayless Blanketflower, Lanceleaf Blanketflower, Prairie Gaillardia
Gaillardia lanceolata var. lanceolata — Sandhill Gaillardia, Rayless Blanketflower, Lanceleaf Blanketflower, Prairie Gaillardia
Gaillardia picta — Beach Blanket-flower, Gaillardia, Firewheel, Indian Blanket Flower
Galactia brevipes — Smooth Milkpea, Common Milkpea
Galactia floridana var. microphylla — Littleleaf Milkpea, Little Milkpea
Galactia glabella — Pine-barren Milkpea
Galactia macreei — Downy Milkpea, Hairy Milkpea, Twining Milkpea, Eastern Milkpea
Galactia michauxii — Pine-barren Milkpea
Galactia mohlenbrockii var. halei — Cluster-pea, Boykin's Clusterpea
Galactia mohlenbrockii var. mohlenbrockii — Cluster-pea, Boykin's Clusterpea
Galactia volubilis var. volubilis — Smooth Milkpea, Common Milkpea
Galarhoeus austrinus — Woodland Spurge, Tinted Spurge, Wood Spurge
Galarhoeus commutatus — Woodland Spurge, Tinted Spurge, Wood Spurge
Galarhoeus cyparissias — Cypress Spurge, Graveyard Spurge
Galarhoeus darlingtonii — Glade Spurge, Darlington Spurge, Purple Spurge
Galarhoeus lathyrus — Caper Spurge, Myrtle Spurge, Mole Plant
Galeorchis spectabilis — Showy Orchis
Galium circaezans var. circaezans — Forest Bedstraw, Licorice Bedstraw
Galium circaezans var. hypomalacum — Forest Bedstraw, Licorice Bedstraw
Galium claytonii — Stiff Marsh Bedstraw, Dye Bedstraw, Three-lobed Bedstraw
Galium erectum — white bedstraw
Galium filifolium — Carolina Bedstraw
Galium mollugo var. erectum — white bedstraw
Galium mollugo var. mollugo — False Baby's Breath, Smooth Bedstraw, Hedge Bedstraw, Wild Madder
Galium obtusum — Bluntleaf Bedstraw
Galium obtusum — Carolina Bedstraw
Galium obtusum ssp. australe — Bluntleaf Bedstraw
Galium orizabense — Bald Bedstraw, Smoothstem Bedstraw
Galium pilosum var. laevicaule — Bald Bedstraw, Smoothstem Bedstraw
Galium pilosum var. pilosum — Hairy Bedstraw
Galium pilosum var. puncticulosum — Hairy Bedstraw
Galypola incarnata — Pink Milkwort, Procession-flower
Gamochaeta coarctata — Elegant Cudweed, Shiny Cudweed, American Everlasting
Gaura michauxii — Threadstalk Gaura, Slenderstalk Beeblossom
Gaylussacia dumosa var. bigeloviana — Northern Dwarf Huckleberry, Bog Huckleberry
Gaylussacia dumosa var. dumosa — Southern Dwarf Huckleberry
Gaylussacia frondosa var. nana — Dwarf Dangleberry, Confederate Huckleberry
Gentiana cherokeensis — Soapwort Gentian, Harvestbells
Gentiana flavida — Pale Gentian, Plain Gentian
Gentiana porphyrio — Pinebarren Gentian, Autumn Gentian
Gentianella quinquefolia var. quinquefolia — Stiff Gentian, Appalachian Gentianella, Fivefinger Gentian, Eastern Agueweed
Geobalanus pallidus — Gopher-apple, Ground-oak
Geranium carolinianum var. confertiflorum — Carolina Cranesbill
Gerardia acuta — Tenlobe Gerardia, Sandplain Agalinis, Tenlobe False Falseglove
Gerardia aphylla — Scaleleaf Gerardia, Scaleleaf Agalinis, Scaleleaf False Foxglove
Gerardia decemloba — Tenlobe Gerardia, Sandplain Agalinis, Tenlobe False Falseglove
Gerardia fasciculata — Fascicled Purple Gerardia, Southeastern Agalinis, Beach False Foxglove, Fascicled Gerardia
Gerardia flava + — Smooth False Foxglove, Smooth Oak-leach, Smooth Yellow False Foxglove
Gerardia gattingeri — Gattinger's Gerardia, Midwestern Agalinis, Gattinger's Agalinis, Gattinger's False Foxglove
Gerardia laevigata — Appalachian Oak-leach, Smooth False Foxglove, Entireleaf Yellow False Foxglove
Gerardia linifolia — Flaxleaf Gerardia, Scaleleaf Agalinis, Flaxleaf False Foxglove, Flaxleaf Agalinis
Gerardia maritima — Seaside Gerardia, Southern Saltmarsh Agalinis, Saltmarsh False Foxglove
Gerardia maritima var. grandiflora — Seaside Gerardia, Southern Saltmarsh Agalinis, Saltmarsh False Foxglove
Gerardia obtusifolia — Bluntleaf Gerardia, Bluntleaf Agalinis, Bluntleaf False Foxglove, Tenlobe False Foxglove
Gerardia patula — Cumberland Oak-leach, Spreading Yellow False Foxglove
Gerardia pectinata — Southern Oak-leach, Sticky False Foxglove, Combleaf Yellow False Foxglove
Gerardia pedicularia + — Fernleaf False Foxglove, Annual Oak-leach, Fernleaf Yellow False Foxglove
Gerardia purpurea — Purple Gerardia, Common Agalinis, Purple False Foxglove
Gerardia purpurea var. racemulosa — Wand Gerardia, Wand Agalinis, Pine-barren False Foxglove
Gerardia racemulosa — Wand Gerardia, Wand Agalinis, Pine-barren False Foxglove
Gerardia setacea — Threadleaf Gerardia, Threadleaf Agalinis, Threadleaf False Foxglove, Sandhills Gerardia
Gerardia tenuifolia var. tenuifolia — Common Gerardia, Slenderleaf Agalinis, Slender False Foxglove, Slender Gerardia
Gerardia virginica — Downy False Foxglove, Downy Oak-leach, Virginia Oak-leach, Downy Yellow False Foxglove
Geum aleppicum var. strictum — Yellow Avens
Geum donianum — Southern Barren Stawberry
Geum fragarioides — Southern Barren Stawberry
Geum fragarioides — Northern Barren Strawberry
Geum hirsutum — Pale Avens, Cream Avens
Geum laciniatum var. laciniatum — Rough Avens
Geum laciniatum var. trichocarpum — Rough Avens
Geum lobatum — Piedmont Barren Strawberry, Lobed Barren Strawberry
Gilia rubra — Standing-cypress, Spanish-larkspur
Gladiolus dalenii — Gladiolus
Glandularia tenuisecta — Moss Vervain, South American Vervain, Moss Verbena
Globifera umbrosa — Shade Mudflower
Glyceria septentrionalis var. septentrionalis — Eastern Mannagrass, Floating Mannagrass
Glycine apios — American Groundnut, Common Groundnut
Gnaphalium calviceps — Narrowleaf Cudweed, Caribbean Everlasting, Delicate Everlasting
Gnaphalium calviceps — Narrowleaf Cudweed, Narrowleaf Purple Everlasting
Gnaphalium falcatum — Narrowleaf Cudweed, Caribbean Everlasting, Delicate Everlasting
Gnaphalium falcatum — Narrowleaf Cudweed, Narrowleaf Purple Everlasting
Gnaphalium peregrinum — Wandering Cudweed, Pennsylvania Everlasting
Gnaphalium purpureum — Silvery Cudweed, Silvery Everlasting
Gnaphalium purpureum — White-cloaked Cudweed, Snow-white Everlasting
Gnaphalium purpureum — Spoonleaf Purple Everlasting, Purple Cudweed
Gnaphalium spathulatum — Wandering Cudweed, Pennsylvania Everlasting
Gonolobus carolinensis — Carolina Spinypod, Climbing Milkweed, Climbing Milkvine, Maroon Carolina Milkvine
Gonolobus decipiens — Deceptive Spinypod
Gonolobus gonocarpos — Eastern Anglepod
Gonolobus laevis — Bluevine, Sandvine, Honeyvine
Gonolobus obliquus — Northern Spinypod, Limerock Milkvine, Climbing Milkvine
Gonolobus pubiflorus — Trailing Milkvine, Sandhill Spinypod
Gonolobus shortii — Northern Spinypod, Limerock Milkvine, Climbing Milkvine
Gossypium herbaceum — Upland Cotton, Short-staple Cotton
Gratiola virginiana var. aestuariorum — Roundfruit Hedge-hyssop, Virginia Hedge-hyssop
Gratiola virginiana var. virginiana — Roundfruit Hedge-hyssop, Virginia Hedge-hyssop
Grossularia curvata — Granite Gooseberry
Grossularia cynosbati — Prickly Gooseberry, Dogberry
Grossularia echinella — Miccosukee Gooseberry, Spiny Gooseberry, Florida Gooseberry
Grossularia missouriensis — Missouri Gooseberry
Grossularia rotundifolia — Roundleaf Gooseberry, Appalachian Gooseberry
Guilandina crista — Gray Nicker, Holdback
Gymnadeniopsis clavellata — Small Green Wood Orchid, Club-spur Orchid, Woodland Orchid, Streamhead Orchid
Gymnadeniopsis integra — Yellow Fringeless Orchid, Golden Frog Orchid, Golden Fringeless Orchid, Golden Frog Arrow
Gymnadeniopsis nivea — Snowy Orchid, Bog-spike
Gyrotheca tinctoria — Carolina Redroot
Habenaria blephariglottis var. conspicua — Large White Fringed Orchid, Southern White Fringed Orchid
Habenaria clavellata var. wrightii — Small Green Wood Orchid, Club-spur Orchid, Woodland Orchid, Streamhead Orchid
Habenaria fimbriata — Large Purple Fringed Orchid, Plume-royal, Greater Purple Fringed Orchid
Halesia monticola — Mountain Silverbell
Hamamelis virginiana var. henryi — Small-leaved Witch-hazel
Hamamelis virginiana var. parvifolia — Northern Witch-hazel
Harperella fluviatilis — Harperella, piedmont mock bishopweed
Harperella vivipara — Harperella, piedmont mock bishopweed
Hartmannia speciosa — Showy Evening Primrose, White Evening Primrose, Pink-ladies, Pink Evening Primrose
Hedeoma hispidum — Rough Pennyroyal, Rough False Pennyroyal, Mock Pennyroyal
Hedera helix ssp. helix — English Ivy, Common Ivy
Hedera helix ssp. hibernica — Atlantic Ivy, Irish Ivy
Hedera helix var. hibernica — Atlantic Ivy, Irish Ivy
Hedyotis australis — Southern Bluet
Hedyotis boscii — Bosc's Bluet
Hedyotis caerulea — Quaker Ladies, Common Bluet, Innocence, Azure Bluet
Hedyotis canadensis — Canada Bluet
Hedyotis corymbosa — Diamond-flower, Flattop Mille-graines
Hedyotis crassifolia — Tiny Bluet, Small Bluet
Hedyotis longifolia — Eastern Longleaf Bluet
Hedyotis longifolia — Narrowleaf Bluet, Diffuse-branched Bluet
Hedyotis longifolia — Granite Dome Bluet
Hedyotis michauxii — Thymeleaf Bluet, Appalachian Bluet, Prostrate Bluet, Marsh Bluet
Hedyotis nigricans — Diamond-flower, Glade Bluet, Prairie Bluet
Hedyotis nigricans var. nigricans — Diamond-flower, Glade Bluet, Prairie Bluet
Hedyotis nuttalliana — Narrowleaf Bluet, Diffuse-branched Bluet
Hedyotis procumbens — Creeping Bluet, Roundleaf Bluet, Trailing Bluet, Fairy-footprints
Hedyotis purpurea — Summer Bluet, Mountain Bluet, Woodland Bluet, Purple Bluet
Hedyotis purpurea — Lanceleaf Bluet, Midwestern Summer Bluet, Glade Mountain Houstonia, Venus's Pride
Hedyotis purpurea — Roan Mountain Bluet
Hedyotis purpurea var. calycosa — Lanceleaf Bluet, Midwestern Summer Bluet, Glade Mountain Houstonia, Venus's Pride
Hedyotis purpurea var. montana — Roan Mountain Bluet
Hedyotis rosea — Rose Bluet, Pygmy Bluet
Hedyotis uniflora — Oldenlandia, Clustered Bluet
Helanthium parvulum — Mud-babies, Dwarf-burhead, Pigmy Chain-sword
Helenium autumnale var. parviflorum — Common Sneezeweed
Helenium curtisii — Littleleaf Sneezeweed, Shortleaf Sneezeweed
Helenium helenium — Savannah Sneezeweed, Spring Helenium
Helenium latifolium — Common Sneezeweed
Helenium nudiflorum — Purplehead Sneezeweed, Southern Sneezeweed
Helenium parviflorum — Common Sneezeweed
Helenium polyphyllum — Purplehead Sneezeweed, Southern Sneezeweed
Helenium tenuifolium — Bitterweed, Yellow Sneezeweed, Bitter Sneezeweed
Helianthus ×laetiflorus — Showy Sunflower, cheerful sunflower
Helianthus ×verticillatus — Whorled Sunflower
Helianthus alienus — Tall Sunflower, Swamp Sunflower, Tuberous Sunflower, Giant Sunflower
Helianthus cucumerifolius — Cucumber-leaf Sunflower, Beach Sunflower
Helianthus debilis — East Florida Beach Sunflower
Helianthus dowellianus — Naked-stem Sunflower, Fewleaf Sunflower, Western Sunflower
Helianthus laetiflorus var. laetiflorus — Showy Sunflower, cheerful sunflower
Helianthus laetiflorus var. rigidus — Stiff Sunflower
Helianthus montanus — Roughleaf Sunflower, Paleleaf Woodland Sunflower, Paleleaf Sunflower
Helianthus occidentalis var. dowellianus — Naked-stem Sunflower, Fewleaf Sunflower, Western Sunflower
Helianthus reindutus — Smooth Sunflower, Shale-barren Sunflower
Helianthus rigidus — Stiff Sunflower
Helianthus saxicola — Thinleaf Sunflower, Forest Sunflower
Helianthus saxicolus — Roughleaf Sunflower, Paleleaf Woodland Sunflower, Paleleaf Sunflower
Helianthus validus — Tall Sunflower, Swamp Sunflower, Tuberous Sunflower, Giant Sunflower
Heliopsis minor — Smooth Oxeye, Pineywoods Oxeye, Coastal Plain Sunflower-everlasting, Coastal Plain Oxeye
Hemerocallis flava — Yellow Daylily, Lemon Daylily
Hemerocallis lilio-asphodelus — Yellow Daylily, Lemon Daylily
Hemionitis alabamensis — Alabama Lipfern, Smooth Lipfern
Hemionitis atropurpurea — Purple Cliffbrake
Hemionitis bradburii — Woolly Lipfern
Hemionitis hispida — Copper Fern, Hispid Bommer Fern, Hairy Bommer
Hemionitis lanosa — Hairy Lipfern
Hemionitis sinuata — Wavy Cloak Fern, Wavy Scaly Cloak Fern
Hemionitis ternifolia — Arizona Cliffbrake
Hemionitis wrightiana — Wright's Cliffbrake
Hepatica acuta — Sharp-lobed Hepatica, Sharp-lobed Liverleaf
Hepatica hepatica — Round-lobed Hepatica, Round-lobed Liverleaf
Heracleum sphondylium ssp. montanum — Cow-parsnip, American Hogweed, Masterwort
Herpestis rotundifolia — Tropical Water-hyssop
Herpothamnus crassifolius — Creeping Blueberry
Hesperis pinnatifida — Purple Rocket
Heterotheca aspera — Pineland Silkgrass, Sticky Goldenaster, Grassleaf Goldenaster
Heterotheca aspera — Carolina Silkgrass, Pineland Silkgrass, Grassleaf Goldenaster
Heterotheca correllii — Common Silkgrass, Grassleaf Goldenaster
Heterotheca graminifolia — Carolina Silkgrass, Pineland Silkgrass, Grassleaf Goldenaster
Heterotheca graminifolia — Narrowleaf Silkgrass, Grassleaf Goldenaster
Heterotheca graminifolia — Common Silkgrass, Grassleaf Goldenaster
Heterotheca hyssopifolia var. subulata — Scrub Goldenaster
Heterotheca latifolia var. latifolia — Camphorweed
Heterotheca microcephala var. microcephala — Narrowleaf Silkgrass, Grassleaf Goldenaster
Heterotheca microcephala var. microcephala — Smallhead Silkgrass, Grassleaf Goldenaster
Heterotheca oligantha — Narrowleaf Goldenaster, Few-flowered Goldenaster, Bog Goldenaster
Heterotheca pilosa — Soft Goldenaster, Hairy Goldenaster
Heterotheca ruthii — Ruth's Goldenaster
Heterotheca subaxillaris ssp. latifolia — Camphorweed
Heterotheca subaxillaris ssp. subaxillaris — Camphorweed
Heterotheca subaxillaris var. latifolia — Camphorweed
Heterotheca subaxillaris var. subaxillaris — Camphorweed
Heuchera ×hispida — Purple Alumroot, Hispid Alumroot
Heuchera americana var. caroliniana — Carolina Alumroot
Heuchera calycosa — American Alumroot
Heuchera curtisii — American Alumroot
Heuchera lancipetala — American Alumroot
Hexalectris spicata var. spicata — Crested Coralroot, Spiked Crested Coralroot, Brunetta
Hexastylis memmingeri — Virginia Heartleaf
Hexastylis virginicum — Variable-leaf Heartleaf
Hibiscus esculentus — Okra, Gumbo
Hibiscus incanus — Swamp Rosemallow, Eastern Rosemallow, Wild Cotton
Hibiscus lasiocarpus — Western Rosemallow
Hibiscus moscheutos ssp. incanus — Swamp Rosemallow, Eastern Rosemallow, Wild Cotton
Hibiscus moscheutos ssp. lasiocarpos — Western Rosemallow
Hibiscus moscheutos ssp. palustris — Swamp Rosemallow, Eastern Rosemallow, Wild Cotton
Hibiscus oculiroseus — Swamp Rosemallow, Eastern Rosemallow, Wild Cotton
Hibiscus palustris — Swamp Rosemallow, Eastern Rosemallow, Wild Cotton
Hibiscus pentacarpos — Southern Seashore Mallow, Seashore Marshmallow, Virginia Saltmarsh Mallow, Fen-rose
Hicora texana — Black Hickory
Hicoria alba — Mockernut Hickory, White Hickory
Hicoria aquatica — Water Hickory, Bitter Pecan
Hicoria austrina — Pignut Hickory
Hicoria carolinae-septentrionalis — Carolina Shagbark Hickory, Southern Shagbark Hickory, Carolina Hickory
Hicoria cordiformis var. cordiformis — Bitternut Hickory
Hicoria cordiformis var. latifolia — Bitternut Hickory
Hicoria floridana — Scrub Hickory
Hicoria glabra var. glabra — Pignut Hickory
Hicoria glabra var. hirsuta — Pignut Hickory
Hicoria laciniosa — Big Shellbark Hickory, Kingnut Hickory
Hicoria microcarpa — Red Hickory, Sweet Pignut Hickory
Hicoria myristiciformis — Nutmeg Hickory
Hicoria ovata — Common Shagbark Hickory
Hicoria pallida — Sand Hickory, Pale Hickory
Hicoria pecan — Pecan
Hicoria texana — Pecan
Hieracium flagellare — Whiplash Hawkweed
Hieracium venosum var. nudicaule — Rattlesnake Hawkweed, Rattlesnake Weed, Veiny Hawkweed
Hieracium venosum var. venosum — Rattlesnake Hawkweed, Rattlesnake Weed, Veiny Hawkweed
Holcus halepensis — Johnsongrass
Holcus sorghum — Sorghum, Milo, Broomcorn, Sorgo
Homalocenchrus lenticularis — Catchfly Cutgrass, Oatmeal Grass
Homalocenchrus oryzoides — Rice Cutgrass
Homalocenchrus virginicus — White Cutgrass, Whitegrass, Virginia Cutgrass
Homalosorus pycnocarpos — Glade Fern
Hordeum vulgare ssp. vulgare — Barley
Hordeum vulgare var. trifurcatum — Barley
Hordeum vulgare var. vulgare — Barley
Houstonia angustifolia — Diamond-flower, Glade Bluet, Prairie Bluet
Houstonia longifolia var. tenuifolia — Narrowleaf Bluet, Diffuse-branched Bluet
Houstonia minima — Tiny Bluet, Small Bluet
Houstonia rotundifolia — Creeping Bluet, Roundleaf Bluet, Trailing Bluet, Fairy-footprints
Hudsonia ericoides ssp. ericoides — Northern Golden-heather
Hudsonia ericoides ssp. montana — Mountain Golden-heather
Hudsonia ericoides ssp. tomentosa — Woolly Beach-heather
Hudsonia tomentosa var. intermedia — Woolly Beach-heather
Hugeria erythrocarpa — Bearberry, Highbush Cranberry, Mountain Cranberry
Huperzia selago — Appalachian Firmoss, Appalachian Fir-clubmoss
Hydatica petiolaris — Michaux's Saxifrage, Cliff Saxifrage
Hydrangea arborescens var. deamii — Ashy Hydrangea, Southern Wild Hydrangea
Hydrangea arborescens var. discolor — Ashy Hydrangea, Southern Wild Hydrangea
Hydrocotyle australis — Whorled Marsh-pennywort, Water-pennywort
Hydrocotyle canbyi — Whorled Marsh-pennywort, Water-pennywort
Hydrophyllum virginicum — Virginia Waterleaf, Eastern Waterfleaf
Hydrophyllum virginicum — Appalachian Waterleaf
Hydrotrida caroliniana — Blue Water-hyssop, Sweet Water-hyssop, Carolina Water-hyssop, Lemon Bacopa
Hymenocallis caroliniana — Rocky-shoals Spiderlily, Catawba Spiderlily, Carolina Spiderlily, Cahaba Lily
Hymenocallis caroliniana — Hammock Spiderlily, Woodland Spiderlily, Northern Spiderlily
Hymenocallis floridana — Carolina Spiderlily, Florida Spiderlily
Hymenocallis palmeri — Pygmy Spiderlily, Waccamaw Spiderlily, dwarf spiderlily
Hypericum ×mitchellianum — Blue Ridge St. Johnswort
Hypericum acutifolium — Strict St. Johnswort, Sharpleaf St. Johnswort
Hypericum acutifolium — Harper's St. Johnswort
Hypericum ambiguum — bedstraw St. Johnswort
Hypericum aspalathoides — Sandhill St. Johnswort, Atlantic St. Johnswort
Hypericum aspalathoides — Shortleaf St. Johnswort
Hypericum aureum — Golden St. Johnswort, Cedar Glade St. Johnswort
Hypericum densiflorum var. interior — Interior Bushy St. Johnswort
Hypericum densiflorum var. lobocarpum — Five-lobe St. Johnswort, Interior St. Johnswort
Hypericum denticulatum var. recognitum — Strict St. Johnswort, Sharpleaf St. Johnswort
Hypericum glomeratum — Mountain Bushy St. Johnswort, Dense-flowered St. Johnswort
Hypericum mutilum ssp. mutilum — Common Dwarf St. Johnswort
Hypericum nitidum ssp. nitidum — Sandweed St. Johnswort
Hypericum opacum — Roundpod St. Johnswort
Hypericum perforatum ssp. perforatum — European St. Johnswort, Common St. Johnswort, Klamath-weed
Hypericum spathulatum — Shrubby St. Johnswort
Hypericum sphaerocarpon var. sphaerocarpon — Barrens St. Johnswort, Roundfruit St. John's-wort
Hypericum sphaerocarpum var. turgidum — Barrens St. Johnswort, Roundfruit St. John's-wort
Hypericum splendens — Golden St. Johnswort, Cedar Glade St. Johnswort
Hypericum subpetiolatum — Spotted St. Johnswort
Hypericum tubulosum var. tubulosum — Southern Marsh St. Johnswort
Hypericum tubulosum var. walteri — Walter’s Marsh St. Johnswort, Greater Marsh St. Johnswort
Hypericum turgidum — Barrens St. Johnswort, Roundfruit St. John's-wort
Hypopitys americana — Eastern Pinesap
Hypopitys americana — Appalachian Red Pinesap, Hairy Pinesap
Hypopitys monotropa — Eastern Pinesap
Hypopitys monotropa — Appalachian Red Pinesap, Hairy Pinesap
Hypoxis leptocarpa — Swamp Stargrass, Curtiss’s Stargrass
Hyptis radiata — Musky Mint, Cluster Bushmint
Hystrix hystrix — Common Bottlebrush Grass, Eastern Bottlebrush-grass
Ibidium beckii — Little Ladies'-tresses, Little Pearl-twist
Ibidium cernuum — Nodding Ladies'-tresses
Ibidium floridanum — Florida Ladies'-tresses
Ibidium gracile — Southern Slender Ladies'-tresses
Ibidium laciniatum — Lace-lip Ladies'-tresses, Lace-lip Spiral Orchid
Ibidium longilabre — Longhorn Ladies'-tresses, Giant Spiral Orchid, Giant Spiral Ladies'-tresses, Long-lipped Ladies'-tresses
Ibidium ochroleucum — Yellow Ladies'-tresses, Yellow Nodding Ladies'-tresses
Ibidium odoratum — Fragrant Ladies'-tresses, Marsh Ladies'-tresses
Ibidium ovale — Lesser Ladies'-tresses, Oval Ladies'-tresses, October Ladies'-tresses
Ibidium ovale — Oval Ladies'-tresses
Ibidium plantagineum — Shining Ladies'-tresses
Ibidium praecox — Grassleaf Ladies'-tresses, Giant Ladies'-tresses
Ibidium praecox — Woodland Ladies'-tresses, Pale Green Ladies'-tresses
Ibidium vernale — Spring Ladies'-tresses
Ilex ambigua var. monticola — Mountain Holly, Mountain Winterberry
Ilex beadlei — Carolina Holly
Ilex buswellii — Carolina Holly
Ilex decidua var. curtissii — Suwanee Possumhaw, Curtiss's Holly
Ilex longipes var. cuthbertii — Cuthbert Holly
Ilex longipes var. longipes — Georgia Holly, Chapman's Holly
Ilex montana var. beadlei — Carolina Holly
Ilex montana var. montana — Mountain Holly, Mountain Winterberry
Ilex monticola — Mountain Holly, Mountain Winterberry
Ilysanthes dubia — Yellowseed False Pimpernel
Ilysanthes monticola — Flatrock Pimpernel, Riverbank Pimpernel, False Pimpernel, Piedmont Pimpernel
Ilysanthes saxicola — Riverbank Pimpernel
Impatiens biflora — Spotted Jewelweed, Spotted Touch-me-not, Orange Jewelweed, Orange Touch-me-not
Imperata cylindrica var. cylindrica — Cogongrass, Bloodroot Grass, Brazilian Satintail
Imperata cylindrica var. mexicana — Brazilian Satintail
Ionoxalis martiana — Windowbox Wood-sorrel
Ionoxalis violacea — Violet Wood-sorrel
Ipomoea coccinea var. hederifolia — Scarlet Creeper
Ipomoea hederacea var. integriuscula — Ivyleaf Morning Glory
Ipomoea pes-caprae — Railroad Vine, Bay Hops, Bay Winders, Goat's-foot
Ipomoea pes-caprae var. emarginata — Railroad Vine, Bay Hops, Bay Winders, Goat's-foot
Ipomoea trifida — Coastal Morning Glory, Tie-vine, Cotton Morning Glory
Iris alticristata — Giant Blue Iris
Iris aurilinea — Giant Blue Iris
Iris citricristata — Giant Blue Iris
Iris elephantina — Giant Blue Iris
Iris flavescens — German Iris, Fleur-de-Lys
Iris fluviatilis — Giant Blue Iris
Iris foliosa — Short-stemmed Iris, Lamance Iris, Zigzag Iris
Iris miraculosa — Giant Blue Iris
Iris mississippiensis — Short-stemmed Iris, Lamance Iris, Zigzag Iris
Iris paludicola — Giant Blue Iris
Iris parvicaerulea — Giant Blue Iris
Iris rivularis — Giant Blue Iris
Iris tripetala — Bay Blue-flag Iris, Flag, Savannah Iris
Iris venulosa — Giant Blue Iris
Iris wherryana — Giant Blue Iris
Isanthus brachiatus — Glade Blue Curls, False Pennyroyal, Fluxweed
Isnardia palustris — Common Water-purslane, Marsh Purslane, Marsh Seedbox
Isnardia repens — Creeping Seedbox
Isnardia spathulata — Southern Water-purslane
Isoetes caroliniana — Mountain Quillwort, Carolina Quillwort, Strong Quillwort
Isoetes engelmannii var. caroliniana — Mountain Quillwort, Carolina Quillwort, Strong Quillwort
Isoetes engelmannii var. engelmannii — Appalachian Quillwort
Isoetes engelmannii var. engelmannii — Engelmann's Quillwort, Appalachian Quillwort
Isoetes engelmannii var. engelmannii — Wintergreen Quillwort, Winter Quillwort, evergreen quillwort
Isolepis carinatus — Keeled Bulrush
Isolepis koilolepis — Keeled Bulrush
Isopappus divaricatus — Scratch-daisy, Goldenweed, Slender Scratch-daisy
Isotrema macrophylla — Dutchman's Pipe, Pipevine
Isotrema serpentarium — Turpentine-root, Virginia Snakeroot, Serpent Birthwort
Isotrema tomentosa — Woolly Dutchman's Pipe, Woolly Pipevine
Isotria affinis — Small Whorled Pogonia, Little Five-leaves
Iva annua var. annua — Sumpweed, Rough Marsh-elder, Annual Marsh-elder
Iva annua var. caudata — Sumpweed, Rough Marsh-elder, Annual Marsh-elder
Iva annua var. macrocarpa — Sumpweed, Rough Marsh-elder, Annual Marsh-elder
Iva caudata — Sumpweed, Rough Marsh-elder, Annual Marsh-elder
Iva ciliata — Sumpweed, Rough Marsh-elder, Annual Marsh-elder
Iva frutescens ssp. frutescens — Southern Maritime Marsh-elder, Southern Bigleaf Marsh-elder
Iva oraria — Northern Maritime Marsh-elder
Juncoides bulbosum — Bulbous Woodrush
Juncoides carolinae — Carolina Woodrush, Southern Hairy Woodrush
Juncoides echinatum — Hedgehog Woodrush, Spreading Woodrush
Juncoides saltuense — Hairy Woodrush
Juncus dichotomus var. dichotomus — Forked Rush
Juncus dichotomus var. platyphyllus — Forked Rush
Juncus effusus var. conglomeratus — Soft Rush, Common Rush
Juncus platyphyllus — Forked Rush
Juncus setaceus — Leathery Rush
Juncus tenuis var. dichotomus — Forked Rush
Juncus tenuis var. tenuis — Path Rush, Poverty Rush, Slender Rush
Juncus tenuis var. williamsii — Path Rush, Poverty Rush, Slender Rush
Juniperus sibirica — Ground Juniper, Mountain Juniper, Common Juniper
Jussiaea angustifolia — Mexican Primose-willow
Jussiaea decurrens — Wingstem Water-primrose, Wingleaf Primrose-willow
Jussiaea leptocarpa — Water-willow, Primrose Willow, Anglestem Primrose-willow
Jussiaea michauxiana — Showy Water-primrose, Large-flower Water-primrose
Jussiaea neglecta — South American Seedbox
Jussiaea scabra — Mexican Primose-willow
Jussiaea uruguayensis — Common Water-primrose
Justicia ovata var. angusta — Pineland Water-willow, Narrowleaf Water-willow
Kali tragus ssp. pontica — Southern Saltwort, Carolina Saltwort
Kali tragus ssp. tragus — Northern Saltwort
Kali tragus ssp. tragus — Russian Thistle, Tumbleweed
Kalmia angustifolia var. angustifolia — Northern Sheepkill, Sheep Laurel, Lamb-kill
Kalmia angustifolia var. carolina — Southern Sheepkill, Carolina Wicky, Carolina Sheep Laurel, Carolina Bog Myrtle
Kalmiella hirsuta — Hairy Wicky, Kalmiella
Kneiffia arenicola — Narrowleaf Sundrops
Kneiffia fruticosa — Narrowleaf Sundrops
Kneiffia glauca — Glaucous Sundrops
Kneiffia hybrida — Blue Ridge Sundrops
Kneiffia latifolia — Northern Sundrops, Appalachian Sundrops
Kneiffia linearis — Narrowleaf Sundrops
Kneiffia perennis — Little Sundrops, Small Sundrops
Kneiffia riparia — Riverbank Evening Primrose, Riverbank Sundrops
Kneiffia semiglandulosa — Narrowleaf Sundrops
Kneiffia tetragona — Northern Sundrops, Appalachian Sundrops
Kneiffia velutina — Northern Sundrops, Appalachian Sundrops
Koellia albescens — Whiteleaf Mountain-mint, White Mountain-mint
Koellia aristata — Awned Mountain-mint
Koellia beadlei — Beadle's Mountain-mint
Koellia clinopodioides — basil mountain-mint
Koellia curvipes — Tennessee Mountain-mint, Stone Mountain Mountain-mint, Stone Mountain-mint
Koellia flexuosa — Narrowleaf Mountain-mint, Slender Mountain-mint, Savanna Mountain-mint
Koellia hugeri — Savanna Mountain-mint, Savanna Mint
Koellia hyssopifolia — Savanna Mountain-mint, Savanna Mint
Koellia leptodon — Whorled Mountain-mint
Koellia leptodon — Torrey's Mountain-mint
Koellia montana — Appalachian Mountain-mint, Thinleaf Mountain-mint
Koellia mutica — Short-toothed Mountain-mint, Downy Mountain-mint, Clustered Mountain-mint
Koellia nuda — Smooth Mountain-mint
Koellia pycnanthemoides — Woodland Mountain-mint, Southern Mountain-mint
Koellia verticillata — Whorled Mountain-mint
Koellia virginiana — Virginia Mountain-mint
Kosteletzkya althaeifolia — Southern Seashore Mallow, Seashore Marshmallow, Virginia Saltmarsh Mallow, Fen-rose
Krameria spathulata — Trailing Ratany, Sandspur, Prairie-bur, Trailing Krameria
Kraunhia floribunda — Japanese Wisteria
Kraunhia frutescens — American Wisteria, Swamp Wisteria, Atlantic Wisteria
Kraunhia macrostachya — Mississippi Wisteria, American Wisteria, Swamp Wisteria, Kentucky Wisteria
Krigia caespitosa var. caespitosa — Opposite-leaf Dwarf-dandelion
Krigia cespitosa var. cespitosa — Opposite-leaf Dwarf-dandelion
Kuhnistera pinnata — Summer Farewell
Kuhnistera pinnata — Summer Farewell, Eastern Prairie-clover
Kyllinga brevifolioides — Asiatic Greenhead Sedge, Pasture Flatsedge
Lachnanthes tinctoria — Carolina Redroot
Lachnocaulon eciliatum — Brown Bogbutton
Lachnocaulon floridanum — Common Bogbuttons, Savanna Bogbuttons, Whitehead Bogbutton
Lachnocaulon glabrum — Common Bogbuttons, Savanna Bogbuttons, Whitehead Bogbutton
Lacinaria gracilis — Slender Blazing-star
Lacinaria polyphylla — Narrowleaf Blazing-star, Smallhead Blazing-star
Laciniaria aspera var. aspera — Rough Blazing-star
Laciniaria aspera var. spheroidea — Rough Blazing-star
Laciniaria chapmanii — Chapman's Blazing-star
Laciniaria chlorolepis — Garber’s Blazing-star
Laciniaria elegans — Common Elegant Blazing-star
Laciniaria elegans — Kral's Elegant Blazing-star
Laciniaria flabellata — Common Elegant Blazing-star
Laciniaria garberi — Garber’s Blazing-star
Laciniaria gracilis — Slender Blazing-star
Laciniaria graminifolia — Grassleaf Blazing-star, Shaggy Blazing-star
Laciniaria helleri — Smooth Blazing-star, Heller's Blazing-star
Laciniaria laxa — Slender Blazing-star
Laciniaria microcephala — Narrowleaf Blazing-star, Smallhead Blazing-star
Laciniaria nashii — Garber’s Blazing-star
Laciniaria pycnostachya — Prairie Blazing-star
Laciniaria regimontis — Wand Blazing-star
Laciniaria ruthii — Southern Blazing-star, Earle's Blazing-star, Appalachian Blazing-star
Laciniaria scariosa — Northern Blazing-star
Laciniaria secunda — Sandhill Blazing-star, One-sided Blazing-star, Lax Blazing-star
Laciniaria shortii — Southern Blazing-star, Earle's Blazing-star, Appalachian Blazing-star
Laciniaria smallii — Wand Blazing-star
Laciniaria spicata — Dense Blazing-star, Mountain Blazing-star, Florist's Gayfeather, Dense Gayfeather
Laciniaria spicata — Dense Blazing-star, Bog Blazing-star
Laciniaria squarrosa — Scaly Blazing-star, Squarrose Gayfeather, Longbracted Blazing-star
Laciniaria tenuifolia — Shortleaf Blazing-star, Shortleaf Gayfeather, Slender Blazing-star
Laciniaria tracyi — Southern Blazing-star, Earle's Blazing-star, Appalachian Blazing-star
Lactuca floridana var. villosa — Woodland Lettuce
Lactuca hirsuta var. hirsuta — Red Wood Lettuce, Downy Lettuce, Hairy Lettuce
Lactuca sagittifolia — American Wild Lettuce, Canada Lettuce
Lactuca serriola var. integrata — Prickly Lettuce
Lactuca virosa — Prickly Lettuce
Lantana camara ssp. camara — Common Lantana, Hedgeflower
Lantana sellowiana — Trailing Shrub-verbena, Polecat-geranium, Trailing Lantana
Lapithea capitata — Cumberland Rose-gentian, Appalachian Rose-gentian
Lapithea gentianoides — Pinewoods Rose-gentian, Pinewoods Rose-pink
Lappula virginiana — Virginia Stickseed
Lasiococcus dumosus — Southern Dwarf Huckleberry
Lasiococcus mosieri — Mosier's Huckleberry, Hirsute Huckleberry
Lasiococcus orocola — Blue Ridge Bog Huckleberry, Blue Ridge Huckleberry
Laurocerasus caroliniana — Carolina Cherry Laurel, Carolina Laurel Cherry
Lavauxia triloba — Stemless Evening Primrose
Leavenworthia exigua — Tennessee Gladecress, Least Glade-cress
Lechea myriophylla — Deckert's Pinweed
Lecticula resupinata — Northeastern Bladderwort, Resupinate Bladderwort, Lavender Bladderwort
Leiophyllum buxifolium var. prostratum — Sand-myrtle, Mountain Myrtle
Leiophyllum hugeri — Sand-myrtle, Mountain Myrtle
Leiophyllum lyonii — Sand-myrtle, Mountain Myrtle
Leontodon erythrospermum — Red-seeded Dandelion
Leontodon taraxacum — Common Dandelion
Lepidium virginicum ssp. virginicum — Poor Man's Pepper, Peppergrass
Leptamnium virginianum — Beechdrops
Leptilon bonariense — South American Horseweed, Hairy Fleabane
Leptilon canadense — Common Horseweed
Leptilon linifolium — South American Horseweed, Hairy Fleabane
Leptilon pusillum — Southern Horseweed
Leptoglottis floridana — Florida Sensitive-briar, Powderpuff Mimosa
Leptoglottis microphylla — Littleleaf Sensitive-briar, Eastern Sensitive-briar
Lespedeza hirta ar. intercursa — Narrow-leaved Lespedeza, Narrowleaf Bush-clover
Lespedeza stuvei — Velvety Lespedeza, Stueve's Bush-clover, Tall Lespedeza
Leucaena glauca — White Leadtree, Leucaena, Jumbie-bean, Hairy Leadtree
Leucanthemum leucanthemum — Oxeye Daisy, Common Daisy
Leucocasia gigantea — Giant Elephant's-ear, Indian Taro
Leucothoe acuminata — Tall Fetterbush, Florida Leucothoe, Florida Hobblebush, Agarista
Leucothoe catesbaei — Mountain Doghobble, Highland Doghobble, Switch-ivy
Leucothoe editorum — Mountain Doghobble, Highland Doghobble, Switch-ivy
Leucothoe walteri — Mountain Doghobble, Highland Doghobble, Switch-ivy
Liatris elegans var. flabellata — Common Elegant Blazing-star
Liatris graminifolia var. virgata — Wand Blazing-star
Liatris pauciflora var. secunda — Sandhill Blazing-star, One-sided Blazing-star, Lax Blazing-star
Liatris spheroidea — Rough Blazing-star
Lilaeopsis attenuata — Carolina Lilaeopsis, Carolina Grasswort, Carolina Strapwort
Lilaeopsis lineata — Marsh Lilaeopsis, Eastern Grasswort, Tidal Strapwort, Fiddler-crab Turf
Lilium canadense ssp. editorum — Canada Lily
Lilium carolinianum — Carolina Lily, Michaux’s Lily
Lilium catesbaei ssp. asperellum — Pine Lily, Catesby's Lily, Leopard Lily
Lilium catesbaei ssp. catesbaei — Pine Lily, Catesby's Lily, Leopard Lily
Lilium catesbaei var. longii — Pine Lily, Catesby's Lily, Leopard Lily
Lilium tigrinum — Tiger Lily
Limodorum multiflorum — Many-flowered Grass-pink
Limodorum pallidum — Pale Grass-pink
Limodorum parviflorum — Bearded Grass-pink
Limodorum pinetorum — Many-flowered Grass-pink
Limodorum tuberosum — Common Grass-pink
Limonium angustatum — Carolina Sea-lavender, Seaside Thrift, Inkroot, Marsh Rosemary
Limonium nashii — Carolina Sea-lavender, Seaside Thrift, Inkroot, Marsh Rosemary
Limonium nashii + — Carolina Sea-lavender, Seaside Thrift, Inkroot, Marsh Rosemary
Limonium obtusilobum — Carolina Sea-lavender, Seaside Thrift, Inkroot, Marsh Rosemary
Linaria canadensis var. canadensis — Oldfield Toadflax, Common Toadflax, Canada Toadflax
Linaria canadensis var. texana — Texas Toadflax
Linaria genistifolia ssp. dalmatica — Dalmation Toadflax
Linaria linaria — Butter-and-eggs, Yellow Toadflax, Wild-snapdragon
Lindera benzoin var. benzoin — Northern Spicebush, Wild Allspice
Lindera benzoin var. pubescens — Northern Spicebush, Wild Allspice
Linum floridanum — Yellow-fruited Yellow Flax, Florida yellow flax
Linum floridanum — Florida Yellow Flax, Savanna Flax
Liriodendron tulipifera var. obtusiloba — Coastal Plain Tulip-tree, Southern Yellow Poplar
Liriodendron tulipifera var. obtusiloba — Tulip-tree, Yellow Poplar, Whitewood
Liriope spicatum — Creeping Lily-turf, Liriope
Lobelia bracteata — Pale Spiked Lobelia, Palespike Lobelia
Lobelia cardinalis ssp. cardinalis — Cardinal Flower
Lobelia glandulifera — Georgia Lobelia, southern lobelia
Lobelia leptostachys — Pale Spiked Lobelia, Palespike Lobelia
Lobelia puberula var. mineolana — Downy Lobelia, Hairy Lobelia
Lobelia puberula var. pauciflora — Downy Lobelia, Hairy Lobelia
Lobelia puberula var. simulans — Downy Lobelia, Hairy Lobelia
Lobelia siphilitica var. ludoviciana — Great Blue Lobelia
Lobelia spicata var. campanulata — Pale Spiked Lobelia, Palespike Lobelia
Lobelia spicata var. leptostachys — Pale Spiked Lobelia, Palespike Lobelia
Lobelia spicata var. scaposa — Pale Spiked Lobelia, Palespike Lobelia
Lolium perenne var. aristatum — Italian Ryegrass, Annual Ryegrass
Lolium perenne var. perenne — English Ryegrass, Perennial Ryegrass
Lonicera bella — Bell's Honeysuckle, Pretty Honeysuckle, Showy Honeysuckle
Lonicera dioica var. dioica — Smooth Honeysuckle, Mountain Coral Honeysuckle, Limber Honeysuckle
Lonicera dioica var. glaucescens — Smooth Honeysuckle, Mountain Coral Honeysuckle, Limber Honeysuckle
Lonicera flavida — Yellow Honeysuckle
Lonicera glaucescens — Smooth Honeysuckle, Mountain Coral Honeysuckle, Limber Honeysuckle
Lonicera morrowi — Morrow's Honeysuckle
Lonicera sempervirens var. hirsutula — Coral Honeysuckle, Trumpet Honeysuckle, Scarlet Honeysuckle, Woodbine
Lonicera sempervirens var. sempervirens — Coral Honeysuckle, Trumpet Honeysuckle, Scarlet Honeysuckle, Woodbine
Lophiola septentrionalis — Goldencrest
Lotus americanus — Carolina Prairie-trefoil
Lotus purshianus var. helleri — Carolina Prairie-trefoil
Ludwigia grandiflora var. grandiflora — Showy Water-primrose, Large-flower Water-primrose
Ludwigia grandiflora var. hexapetala — Common Water-primrose
Ludwigia natans — Creeping Seedbox
Ludwigia octovalvis ssp. octovalvis — Mexican Primose-willow
Ludwigia octovalvis ssp. sessiliflora — Mexican Primose-willow
Ludwigiantha arcuata — Pondshore Seedbox, piedmont primrose-willow, Needleleaf Ludwigia
Lunaria annua ssp. annua — Money Plant, Annual Honesty, Silver-dollar Plant
Lupinus nuttallii — Southern Sundial Lupine
Lupinus perennis ssp. perennis var. occidentalis — Northern Sundial Lupine
Luzula campestris var. bulbosa — Bulbous Woodrush
Luzula campestris var. echinata — Hedgehog Woodrush, Spreading Woodrush
Luzula campestris var. multiflora — Common Woodrush
Luzula multiflora ssp. multiflora — Common Woodrush
Lycium carolinianum var. quadrifidum — Christmas-berry, Carolina Matrimony-vine
Lycopodiella caroliniana — Carolina Bog-clubmoss, Slender Clubmoss
Lycopodiella caroliniana — Florida Bog Clubmoss
Lycopodiella caroliniana var. meridionalis — Florida Bog Clubmoss
Lycopodiella cernua — Nodding Clubmoss, Staghorn Clubmoss
Lycopodioides apodum — Meadow Spikemoss
Lycopodioides ludovicianum — Louisiana Spikemoss, Gulf Spikemoss
Lycopodium adpressum — Southern Bog-clubmoss
Lycopodium cernuum — Nodding Clubmoss, Staghorn Clubmoss
Lycopodium inundatum var. bigelovii — Southern Bog-clubmoss
Lycopodium obscurum var. isophyllum — Hickey's Tree-clubmoss, Pennsylvania Ground-pine
Lycopodium prostratum — Featherstem Clubmoss, Prostrate Bog-clubmoss
Lycopodium selago var. appressum — Appalachian Firmoss, Appalachian Fir-clubmoss
Lycopodium selago var. selago — Appalachian Firmoss, Appalachian Fir-clubmoss
Lycopus ×sherardi — bugleweed, water horehound
Lycopus velutinus — Stalked Bugleweed, Taperleaf Bugleweed
Lyonia palustris — Swallow-wort, Sand-vine, Gulf Coast Swallow-wort, Marsh Cynanchum
Lysias orbiculata — Large Round-leaved Orchid, Dessert-plate Orchid
Lysimachia arvensis — Scarlet Pimpernel, Poor Man's Weatherglass
Lysimachia borealis — Northern Starflower, Maystar
Lysimachia minima — Chaffweed, False-pimpernel
Macbridea pulchra — Carolina Birds-in-a-nest, Carolina Macbridea, Carolina Bogmint
Magnolia cordata — Piedmont Cucumber Magnolia, Yellow Cucumber-tree, Showy Cucumber Magnolia
Magnolia fraseri ssp. pyramidata — Pyramid Magnolia
Magnolia fraseri var. pyramidata — Pyramid Magnolia
Magnolia macrophylla ssp. ashei — Ashe's Magnolia
Magnolia macrophylla ssp. macrophylla — Bigleaf Magnolia, Large-leaved Magnolia, Umbrella Tree
Magnolia macrophylla var. ashei — Ashe's Magnolia
Malachodendron pentagynum — Mountain Camellia, Mountain Stewartia
Malaxis floridana — Florida Adder's-mouth
Malus angustifolia var. angustifolia — Southern Crabapple, Wild Crabapple
Malus angustifolia var. puberula — Southern Crabapple, Wild Crabapple
Malus angustifolia var. puberula — Sweet Crabapple, Wild Crabapple
Malus bracteata — Sweet Crabapple, Wild Crabapple
Malus glaucescens — Sweet Crabapple, Wild Crabapple
Malus lancifolia — Sweet Crabapple, Wild Crabapple
Malus malus — Common Apple
Malus sylvestris — Common Apple
Malva rotundifolia — Common Mallow, Cheeses
Malvaviscus arboreus var. mexicanus — Wax Mallow
Malvaviscus arboreus var. penduliflorus — Turk’s-cap Mallow, Mazapan
Manfreda tigrina — Eastern Agave, Eastern False-aloe, Rattlesnake-master, American Aloe
Manfreda virginica ssp. virginica — Eastern Agave, Eastern False-aloe, Rattlesnake-master, American Aloe
Manisuris campestris — Carolina Jointgrass
Manisuris exaltata — Itch-grass
Mappia origanoides — Wild-oregano, American Dittany, Stone-mint
Marginaria polypodioides — Resurrection Fern, Scaly Polypody
Mariana mariana — Blessed Milk-thistle, Blessed-thistle, Milk-thistle
Marilaunidium jamaicense — Jamaica Weed, Fiddleleaf, Fiddleleaf Nama
Mariscus jamaicensis — Sawgrass
Marshallia graminifolia ssp. tenuifolia — Grassleaf Barbara's-buttons, Gulf Coast Barbara's-buttons
Marshallia laciniarioides — Grassleaf Barbara's-buttons
Marshallia obovata — Piedmont Barbara's-buttons, Spoon-leaved Barbara's-buttons, Spoon-shaped Barbara's-buttons
Marshallia obovata — Sandhill Marshallia, Savanna Barbara's-buttons, Spoon-shaped Barbara's-buttons
Marshallia tenuifolia — Grassleaf Barbara's-buttons, Gulf Coast Barbara's-buttons
Marshallia williamsonii — Grassleaf Barbara's-buttons
Martiusia mariana — Butterfly-pea
Maruta cotula — Stinking Chamomile, Stinking Mayweed, Dog-fennel, Chigger-weed
Matelea suberosa — Eastern Anglepod
Matricaria maritima — Scentless Chamomile, False Chamomile, Mayweed
Matricaria parthenium — Feverfew, Feather-leaf Tansy
Medicago falcata — Alfalfa, Lucerne, Blue Alfalfa
Medicago hispida — Toothed Medick, Smooth Bur-clover
Medicago sativa ssp. falcata — Alfalfa, Lucerne, Blue Alfalfa
Meibomia acuminata — Heartleaf Tick-trefoil, Clusterleaf Tick-trefoil, Pointedleaf Tick-Trefoil
Meibomia arenicola — Matted Tick-trefoil, Sand Tick-trefoil
Meibomia canescens — Hoary Tick-trefoil
Meibomia chapmanii — Panicled Tick-trefoil
Meibomia ciliaris — Hairy Small-leaf Tick-trefoil, Littleleaf Tick-trefoil
Meibomia dillenii — Perplexing Tick-trefoil, Dillen's Tick-trefoil
Meibomia laevigata — Smooth Tick-trefoil
Meibomia marilandica — Smooth Small-leaf Tick-trefoil, Maryland Tick-trefoil
Meibomia michauxii — Roundleaf Tick-trefoil, Dollarleaf, Prostrate Tick-trefoil, Sessileleaf Tick-trefoil
Meibomia nudiflora — Naked Tick-trefoil, Naked-flowered Tick Trefoil, Woodland Tick-trefoil
Meibomia ochroleuca — White Tick-trefoil, Creamflower Tick-trefoil, Cream Tick-trefoil
Meibomia paniculata — Panicled Tick-trefoil
Meibomia paniculata — Tall Tick-trefoil, Dillen's Tick-trefoil
Meibomia pauciflora — Fewflower Tick-trefoil
Meibomia polymorpha — Matted Tick-trefoil, Sand Tick-trefoil
Meibomia pubens — Panicled Tick-trefoil
Meibomia pubens — Tall Tick-trefoil, Dillen's Tick-trefoil
Meibomia purpurea — Florida Tick-trefoil, dixie tick-trefoil
Meibomia rhombifolia — Fernald's Tick-trefoil
Meibomia rhombifolia — Florida Tick-trefoil
Meibomia rigida — Stiff Tick-trefoil
Meibomia sessilifolia — Sessile-leaf Tick-trefoil
Meibomia stricta — Pinebarren Tick-trefoil, Pineland Tick-trefoil, Upland Slender Tick-trefoil
Meibomia tenuifolia — Slimleaf Tick-trefoil, Savanna Slender Tick-trefoil
Meibomia viridiflora — Nuttall's Tick-trefoil
Meibomia viridiflora — Velvety Tick-trefoil, Velvety Tick-clover
Melaleuca leucadendra — Paperbark Tree, Melaleuca, Punktree, Cajeput Tree
Melaleuca leucodendron — Paperbark Tree, Melaleuca, Punktree, Cajeput Tree
Melampyrum lineare var. americanum — Cow-wheat
Melampyrum lineare var. latifolium — Cow-wheat
Melampyrum lineare var. lineare — Cow-wheat
Melampyrum lineare var. pectinatum — Cow-wheat
Melanthera deltoidea — Snowy Black-anthers, Snow Squarestem
Melanthera ligulata — Snowy Black-anthers, Snow Squarestem
Melanthium dispersum — Virginia Bunchflower, Bog Bunchflower
Melanthium latifolium — Crisped Bunchflower, Broadleaf Bunchflower, Slender Bunchflower
Melochia villosa — Bretonica-peluda
Melothria microcarpa — Creeping Cucumber
Melothria nashii — Creeping Cucumber
Melothria pendula var. aspera — Creeping Cucumber
Melothria pendula var. crassifolia — Creeping Cucumber
Mentha ×piperita — Peppermint
Mentha arvensis × spicata — Small-leaved Mint
Mentha arvensis var. canadensis — Canada Mint, Field Mint, Wild Mint
Mentha arvensis var. villosa — Canada Mint, Field Mint, Wild Mint
Mentha gentilis — Small-leaved Mint
Mentha gracilis — Small-leaved Mint
Merione sp. 1 — Florida Wild Yam
Mesadenia atriplicifolia — Pale Indian-plantain
Mesadenia diversifolia — Variable-leaf Indian-plantain
Mesadenia elliottii — Broadleaf Indian-plantain, Ovateleaf Indian-plantain, Ovateleaf Cacalia
Mesadenia lanceolata — Savanna Indian-plantain
Mesadenia maxima — Broadleaf Indian-plantain, Ovateleaf Indian-plantain, Ovateleaf Cacalia
Mesadenia reniformis — Great Indian-plantain
Micheliella verticillata — Whorled Horsebalm
Micrampelis lobata — Wild-cucumber, Wild Balsam-apple
Micranthes petiolaris — Michaux's Saxifrage, Cliff Saxifrage
Micranthes petiolaris — Escarpment Saxifrage, Shealy's Saxifrage
Micranthes tennesseensis — Carolina Saxifrage
Microstegium vimineum var. imberbe — Japanese Stiltgrass, Japanese-grass, Nepalese Browntop, Nepal Grass
Microstegium vimineum var. vimineum — Japanese Stiltgrass, Japanese-grass, Nepalese Browntop, Nepal Grass
Mimosa illinoensis — Illinois Bundleflower, Prairie Mimosa, Common Bundleflower
Mimosa quadrivalvis var. angustata — Littleleaf Sensitive-briar, Eastern Sensitive-briar
Minuartia alabamensis — Piedmont Sandwort, One-flower Sandwort
Mirabilis japala — Garden Four-o'clock, Marvel-of-Peru, Morning-rose
Mirabilis lindheimeri — Garden Four-o'clock, Marvel-of-Peru, Morning-rose
Miscanthus sinensis var. variegatus — Chinese Silvergrass, Eulalia
Miscanthus sinensis var. zebrinus — Chinese Silvergrass, Eulalia
Monarda ×media — Purple Beebalm, Purple Bergamot
Monarda citriodora ssp. citriodora — Lemon Bergamot, Lemon Mint
Monarda dispersa — Lemon Bergamot, Lemon Mint
Monarda fistulosa var. clinopodia — Basil Bergamot, Basil Beebalm, White Bergamot, Basil Balm
Monarda punctata ssp. punctata — Eastern Horsemint, Spotted Beebalm
Mononeuria caroliniana — Carolina Sandwort, Longroot, Pine-barren Sandwort
Mononeuria glabra — Appalachian Sandwort
Mononeuria groenlandica — Mountain Sandwort, Greenland Sandwort
Mononeuria paludicola — Godfrey's Sandwort
Mononeuria patula — Lime-barren Sandwort, Glade Sandwort
Mononeuria uniflora — Piedmont Sandwort, One-flower Sandwort
Monotropsis lehmaniae — Appalachian Pygmy Pipes, Sweet Pinesap
Monotropsis odorata var. lehmaniae — Appalachian Pygmy Pipes, Sweet Pinesap
Morus murrayana — Red Mulberry
Morus nigra — White Mulberry, Silkworm Mulberry, Russian Mulberry
Muhlenbergia capillaris var. capillaris — Pink Muhlygrass, Upland Muhly, Hair-awn Muhly, Hairgrass
Muhlenbergia capillaris var. filipes — Dune Hairgrass, Sweetgrass
Muhlenbergia capillaris var. trichopodes — Savannah Hairgrass, Cut-over Muhly
Muhlenbergia foliosa — Hairy Wirestem Muhly, Mexican Muhly
Muhlenbergia mexicana var. filiformis — Hairy Wirestem Muhly, Mexican Muhly
Muhlenbergia mexicana var. mexicana — Hairy Wirestem Muhly, Mexican Muhly
Muhlenbergia sylvatica var. sylvatica — Woodland Muhly
Muhlenbergia umbrosa — Woodland Muhly
Mulgedium floridanum — Woodland Lettuce
Mulgedium spicatum var. integrifolium — Tall Blue Lettuce, Blue Wood Lettuce
Mulgedium spicatum var. spicatum — Tall Blue Lettuce, Blue Wood Lettuce
Mulgedium villosum — Woodland Lettuce
Muricauda dracontium — Green Dragon
Muricauda dracontium — Green Dragon
Muscadinia munsoniana — Munson Grape, Bullace Grape
Muscadinia rotundifolia — Muscadine, Scuppernong
Muscari atlanticum — Starch Grape-hyacinth, Blue Bottles
Myosotis palustris — Water Scorpion-grass, True Forget-me-not
Myosotis versicolor — Yellow-and-blue Scorpion-grass, Changing Forget-me-not
Myosotis virginica — Spring Forget-me-not, Early Forget-me-not, Early Scorpion-grass
Myrica asplenifolia var. asplenifolia — Sweet-fern
Myrica asplenifolia var. tomentosa — Sweet-fern
Myrica caroliniensis — Pocossin Bayberry, Evergreen Bayberry, Swamp Candleberry, Southern Bayberry
Myrica cerifera — Common Wax-myrtle, Southern Bayberry
Myrica cerifera — Dwarf Wax-myrtle, Dwarf Bayberry
Myrica inodora — Scentless Bayberry, Odorless Bayberry
Myrica pusilla — Dwarf Wax-myrtle, Dwarf Bayberry
Myriophyllum exalbescens — Common Water-milfoil
Myriophyllum proserpinacoides — Parrot-feather
Nabalus integrifolius — Barbed Rattlesnake-root, Flatwoods Rattlesnake-root, Prairie Lion’s-foot
Nabalus integrifolius — Lion's-foot Rattlesnake-root, Gall-of-the-Earth
Nabalus serpentarius — Lion's-foot Rattlesnake-root, Gall-of-the-Earth
Nabalus trifoliatus — Gall-of-the-earth, Three-leaved Rattlesnake-root
Nabalus virgatus — Slender Rattlesnake-root, One-sided Rattlesnake-root
Naias guadelupensis — Southern Naiad, Southern Waternymph, Common Naiad
Najas ancistrocarpa — Narrowleaf Naiad, needleleaf waternymph
Nama corymbosum — Tall Hydrolea, Skyflower
Nama ovatum — Ovate False Fiddleleaf, Blue Waterleaf, Hairy Hydrolea, Ovate Fiddleleaf
Nama quadrivalve — Waterpod
Narcissus poeticus × pseudonarcissus — Nonesuch Daffodil
Narrowleaf — Narrowleaf Meadowsweet, Pipestem
Nasturtium austriacum — Austrian Yellowcress, Yellow Cress
Nasturtium officinale var. microphyllum — Narrow-fruited Watercress, One-row Yellowcress
Nasturtium officinale var. officinale — Watercress
Nasturtium officinale var. siifolium — Watercress
Negundo negundo — Eastern Box Elder, Ash-leaved Maple, River Maple
Nemexia biltmoreana — Biltmore Carrionflower
Nemexia ecirrhata — Upright Carrionflower
Nemexia herbacea — Common Carrionflower, Smooth Carrionflower
Nemexia hugeri — Huger's Carrionflower
Nemexia lasioneuron — Midwestern Carrionflower
Nemexia pulverulenta — Downy Carrionflower
Nemexia tamnifolia — Coastal Carrionflower, Bamboo-vine
Nemopanthus collinus — Long-stalked Holly, Cherry Holly
Nemopanthus mucronatus — Catberry, Nemopanthus
Nemophila triloba — Baby Blue Eyes, Small-flower Baby-blue-eyes, White Nemophila, Eastern Baby-blue-eyes
Neocleome spinosa — Cleome, Spiderflower, Pinkqueen
Neopieris mariana — Staggerbush, Large-flowered Fetterbush
Neubeckia cristata — Dwarf Crested Iris
Neubeckia verna — Coastal Plain Dwarf Iris, Sandhill Iris, Coastal Plain Violet Iris
Neubeckia verna — Upland Dwarf Iris, Upland Dwarf Violet Iris
Nintooa japonica — Japanese Honeysuckle
Norta altissima — Tumble Mustard, Jim Hill Mustard, Tall Hedge-mustard
Notholaena sinuata var. sinuata — Wavy Cloak Fern, Wavy Scaly Cloak Fern
Notholcus lanatus — Velvet-grass, Soft Grass
Nuphar advena ssp. advena — Spatterdock, Broadleaf Pondlily, Cow-lily, Yellow Pond Lily
Nymphaea advena — Spatterdock, Broadleaf Pondlily, Cow-lily, Yellow Pond Lily
Nymphaea chartacea — Spatterdock, Broadleaf Pondlily, Cow-lily, Yellow Pond Lily
Nymphaea fluviatilis — Spatterdock, Broadleaf Pondlily, Cow-lily, Yellow Pond Lily
Nymphaea macrophylla — Spatterdock, Broadleaf Pondlily, Cow-lily, Yellow Pond Lily
Nymphaea sagittifolia — Narrowleaf Pondlily, Cow-lily, Spatterdock, Bonnets
Nymphoides aquaticum — Big Floating Heart, Banana Floating Heart
Nymphoides cordatum — Little Floating Heart
Nymphoides lacunosum — Little Floating Heart
Nymphoides peltatum — Yellow Floating Heart
Nyssa acuminata — Ogeechee Tupelo, Ogeechee Lime, Ogeechee Plum
Nyssa biflora var. ursina — Bear Tupelo, Apalachicola Tupelo
Nyssa sylvatica var. ursina — Bear Tupelo, Apalachicola Tupelo
Nyssa uniflora — Water Tupelo, Cotton Gum, Tupelo Gum
Oakesiella puberula — Mountain Bellwort, Appalachian Bellwort, Carolina Bellwort, Coastal Bellwort
Oakesiella sessilifolia — Wild-oats, Sessile-leaf Bellwort, Straw-lily
Oceanorus leimanthoides — Pinebarrens Death-camas
Odontostephana carolinensis — Carolina Spinypod, Climbing Milkweed, Climbing Milkvine, Maroon Carolina Milkvine
Odontostephana decipiens — Deceptive Spinypod
Odontostephana flavidula — Yellow Spinypod, Yellow Carolina Milkvine
Odontostephana floridana — Florida Milkvine
Odontostephana obliqua — Northern Spinypod, Limerock Milkvine, Climbing Milkvine
Odontostephana shortii — Northern Spinypod, Limerock Milkvine, Climbing Milkvine
Oenothera austromontana — Nodding Evening-primrose
Oenothera biennis var. austromontana — Nodding Evening-primrose
Oenothera biennis var. nutans — Nodding Evening-primrose
Oenothera drummondii ssp. drummondii — Beach Evening Primrose, Drummond's Evening Primrose
Oenothera fruticosa ssp. glauca — Northern Sundrops, Appalachian Sundrops
Oenothera fruticosa ssp. glauca — Glaucous Sundrops
Oenothera fruticosa ssp. glauca — Blue Ridge Sundrops
Oenothera fruticosa var. unguiculata — Coastal Sundrops
Oenothera tetragona ssp. glauca — Glaucous Sundrops
Oenothera tetragona ssp. glauca — Blue Ridge Sundrops
Oenothera tetragona ssp. glauca var. riparia — Riverbank Evening Primrose, Riverbank Sundrops
Oenothera tetragona ssp. tetragona var. tetragona — Northern Sundrops, Appalachian Sundrops
Oenothera tetragona ssp. tetragona var. velutina — Northern Sundrops, Appalachian Sundrops
Oenothera tetragona var. hybrida — Blue Ridge Sundrops
Oenothera tetragona var. latifolia — Northern Sundrops, Appalachian Sundrops
Oenothera tetragona var. tetragona — Northern Sundrops, Appalachian Sundrops
Oldenlandia fasciculata — Oldenlandia, Clustered Bluet
Oligoneuron jacksonii — Southeastern Stiff Goldenrod, Southeastern Bold Goldenrod
Oligoneuron rigidum — Midwestern Stiff Goldenrod, Hard-leaved Goldenrod, Midwestern Bold Goldenrod, Stiff-leaved Goldenrod
Onoclea sensibilis var. sensibilis — Sensitive Fern, Bead Fern
Onosmodium molle — Western Marbleseed
Onosmodium molle ssp. occidentale — Western Marbleseed
Onosmodium occidentale — Western Marbleseed
Ophioglossum crotalophoroides var. crotalophoroides — Bulbous Adder's-tongue, Dwarf Adder's Tongue
Ophioglossum crotalophoroides var. nanum — Bulbous Adder's-tongue, Dwarf Adder's Tongue
Ophioglossum dendroneuron — Slender Adder's-tongue
Ophioglossum floridanum — Longstem Adder's-tongue, Stalked Adder's-tongue Fern, Longstem Adder's-tongue
Ophioglossum mononeuron — Slender Adder's-tongue
Ophioglossum pumilio — Slender Adder's-tongue
Ophioglossum tenerum — Slender Adder's-tongue
Ophrys australis — Southern Twayblade
Ophrys smallii — Kidneyleaf Twayblade, Appalachian Twayblade, Small's Twayblade
Oplismenus compositus — Shortleaf Basketgrass, Woods-grass, Bristle Basketgrass
Oplismenus hirtellus — Wavyleaf Basketgrass
Oplismenus hirtellus — Shortleaf Basketgrass, Woods-grass, Bristle Basketgrass
Opulaster australis — Flowering Ninebark, Eastern Ninebark
Opulaster opulifolius — Flowering Ninebark, Eastern Ninebark
Opuntia calcicola — Eastern Prickly-pear
Opuntia humifusa var. humifusa — Eastern Prickly-pear
Opuntia humifusa var. humifusa — Common Eastern Prickly-pear
Opuntia humifusa var. humifusa — Eastern Prickly-pear
Opuntia humifusa var. humifusa — Southern Prickly-pear
Opuntia impedita — Eastern Prickly-pear
Opuntia impedita — Southern Prickly-pear
Opuntia lata — Southern Prickly-pear
Opuntia macrarthra — Eastern Prickly-pear
Opuntia monacanthos — South American Prickly-pear, Common Prickly-pear, Drooping Prickly-pear
Opuntia opuntia — Common Eastern Prickly-pear
Opuntia opuntia — Eastern Prickly-pear
Opuntia pollardii — Eastern Prickly-pear
Opuntia tracyi — Dune Prickly-pear, Dune Devil-joint, Devils-joint Cactus, Little Prickly-pear
Opuntia tunoidea — Coastal Prickly-pear, Shell Midden Prickly-pear, Erect Prickly-pear
Orbexilum gracile — Eastern Sampson's-snakeroot
Orbexilum pedunculatum var. gracile — Eastern Sampson's-snakeroot
Orobanche uniflora ssp. uniflora — One-flowered Cancer-root, One-flowered Broomrape, Ghostpipe
Orobanche uniflora var. uniflora — One-flowered Cancer-root, One-flowered Broomrape, Ghostpipe
Orthodon dianthera — Miniature Beefsteak-plant, Mosla
Osmanthus americanus — Devilwood, Wild Olive
Osmorrhiza claytonii — Bland Sweet Cicely, Hairy Sweet Cicely
Osmorrhiza longistylis — Aniseroot, Smooth Sweet Cicely, Longstyle Sweet-cicely
Osmunda cinnamomea var. glandulosa — Cinnamon Fern
Osmunda claytoniana var. claytoniana — Interrupted Fern
Osmunda regalis — American Royal Fern
Osmundastrum cinnamomeum var. cinnamomeum — Cinnamon Fern
Osmundastrum cinnamomeum var. glandulosum — Cinnamon Fern
Osmundastrum claytonianum — Interrupted Fern
Osmundopteris virginiana — Rattlesnake Fern, Sang-find
Ostrya virginiana var. virginiana — American Hop-hornbeam, Ironwood, Eastern Hop-hornbeam, Leverwood
Oxalis acetosella ssp. montana — Mountain Wood-sorrel, American Wood-sorrel, Wood Shamrock, White Wood-sorrel
Oxalis articulata ssp. rubra — Windowbox Wood-sorrel
Oxalis corymbosa — pink woodsorrel
Oxalis dillenii ssp. dillenii — Southern Yellow Wood-sorrel, Slender Yellow Wood-sorrel
Oxalis dillenii ssp. filipes — Flowering Yellow Wood-sorrel
Oxalis europaea — Common Yellow Wood-sorrel
Oxalis filipes — Flowering Yellow Wood-sorrel
Oxalis florida var. filipes — Southern Yellow Wood-sorrel, Slender Yellow Wood-sorrel
Oxalis florida var. florida — Southern Yellow Wood-sorrel, Slender Yellow Wood-sorrel
Oxalis priceae — Sadie Price’s Yellow Wood-sorrel
Oxalis recurva — Flowering Yellow Wood-sorrel
Oxalis recurva — Sadie Price’s Yellow Wood-sorrel
Oxalis recurva var. macrantha — Sadie Price’s Yellow Wood-sorrel
Oxalis recurva var. recurva — Flowering Yellow Wood-sorrel
Oxalis repens — Creeping Lady's-sorrel
Oxybaphus nyctagineus — Heart-leaved Umbrella-wort, Heartleaf Four-o’clock
Oxycoccus macrocarpus — Cranberry, Large Cranberry
Oxycoccus microcarpon — Small Cranberry
Oxycoccus microcarpon — Cranberry, Large Cranberry
Oxypolis denticulata — Savanna Cowbane
Oxypolis turgida — Cowbane, Pig-potato, Stiff Cowbane
Oxytria albiflora — White Sunnybell
Oxytria crocea — Yellow Sunnybell
Oxytria texana — Texas Sunnybell
Pachistima canbyi — Canby's Mountain Lover, Ratstripper, Cliff-green
Pachystima canbyi — Canby's Mountain Lover, Ratstripper, Cliff-green
Packera millefolia — Blue Ridge Ragwort, Yarrowleaf Ragwort, Divided-leaf Ragwort, Blue Ridge Groundsel
Packera schweinitzianus — Robbins' Ragwort, New England Ragwort, New England Groundsel, Schweinitz's Ragwort
Padus alabamensis — Alabama Black Cherry
Padus australis — Alabama Black Cherry
Padus cuthbertii — Alabama Black Cherry
Padus nana — Choke Cherry, Common Chokecherry
Padus serotina — Black Cherry, Eastern Wild Black Cherry, Bird Cherry
Padus virginiana — Black Cherry, Eastern Wild Black Cherry, Bird Cherry
Paepalanthus anceps — Common Bogbuttons, Savanna Bogbuttons, Whitehead Bogbutton
Paepalanthus beyrichianus — Southern Bogbuttons
Palhinhaea cernua var. cernua — Nodding Clubmoss, Staghorn Clubmoss
Panicularia septentrionalis — Eastern Mannagrass, Floating Mannagrass
Panicularia striata — Fowl Mannagrass
Panicum aculeatum — Tall Swamp Witchgrass
Panicum acuminatum var. fasciculatum — Slender-stemmed Witchgrass, Western Woolly Witchgrass
Panicum acuminatum var. lindheimeri — Lindheimer's Witchgrass
Panicum acuminatum var. unciphyllum — Slender-stemmed Witchgrass, Western Woolly Witchgrass
Panicum agrostoides — Redtop Panicgrass
Panicum agrostoides var. elongatum — Tall Flat Panicgrass, Stalked Panicgrass
Panicum agrostoides var. ramosius — Redtop Panicgrass
Panicum amarum ssp. amarulum — Southern Seabeach Grass, Bitter Panicgrass
Panicum amarum ssp. amarum — Seaside Panicum, Bitter Seabeach Grass, Bitter Panicgrass, Bitter Seaside Panic-grass
Panicum anceps ssp. anceps — Beaked Panicum, Beaked Panicgrass
Panicum anceps ssp. rhizomatum — Small Beaked Panicum, Small Beaked Panicgrass
Panicum annulum — Ringed Witchgrass
Panicum arenicoloides — Sandy Woods Witchgrass
Panicum arenicolum — Needleleaf Witchgrass, Needleleaf Rosette Grass
Panicum auburne — Woolly Witchgrass, Woolly Rosette Grass, Tapered Rosette Grass
Panicum barbulatum — Forked Witchgrass
Panicum bennettense — Needleleaf Witchgrass, Needleleaf Rosette Grass
Panicum boscii var. boscii — Bosc's Witchgrass
Panicum boscii var. molle — Bosc's Witchgrass
Panicum caerulescens — Blue Witchgrass
Panicum capillare ssp. capillare — Old-witch Panicgrass, Tickle Grass, Tumbleweed
Panicum capillare var. capillare — Old-witch Panicgrass, Tickle Grass, Tumbleweed
Panicum capillare var. sylvaticum — Woodland Panicgrass
Panicum clutei — Mattamuskeet Witchgrass
Panicum columbianum var. columbianum — American Witchgrass
Panicum condensum — Dense Panicgrass
Panicum dichotomiflorum ssp. dichotomiflorum — Fall Panicum, Fall Panicgrass, Spreading Panicgrass
Panicum dichotomum var. mattamuskeetense — Mattamuskeet Witchgrass
Panicum dichotomum var. nitidum — Shining Witchgrass
Panicum dichotomum var. roanokense — Blue Witchgrass
Panicum dichotomum var. yadkinense — Spotted-sheath Witchgrass
Panicum elongatum — Tall Flat Panicgrass, Stalked Panicgrass
Panicum geminatum — Alligator Grass, Paspalidium, Kissimmee Grass
Panicum gouinii — Torpedo Grass
Panicum huachucae var. fasciculatum — Slender-stemmed Witchgrass, Western Woolly Witchgrass
Panicum huachucae var. huachucae — Slender-stemmed Witchgrass, Western Woolly Witchgrass
Panicum huachucae var. silvicola — Slender-stemmed Witchgrass, Western Woolly Witchgrass
Panicum implicatum — Slender-stemmed Witchgrass, Western Woolly Witchgrass
Panicum lacustre — Fall Panicum, Fall Panicgrass, Spreading Panicgrass
Panicum lanuginosum var. fasciculatum — Slender-stemmed Witchgrass, Western Woolly Witchgrass
Panicum lanuginosum var. implicatum — Slender-stemmed Witchgrass, Western Woolly Witchgrass
Panicum lanuginosum var. lindheimeri — Long-ligule Witchgrass, Coastal Plain Witchgrass
Panicum lanuginosum var. lindheimeri — Lindheimer's Witchgrass
Panicum lanuginosum var. septentrionale — Lindheimer's Witchgrass
Panicum lanuginosum var. tennesseense — Slender-stemmed Witchgrass, Western Woolly Witchgrass
Panicum lindheimeri — Lindheimer's Witchgrass
Panicum lucidum — Bog Witchgrass
Panicum lucidum var. lucidum — Bog Witchgrass
Panicum lucidum var. opacum — Bog Witchgrass
Panicum mattamuskeetense — Mattamuskeet Witchgrass
Panicum maximum — Guinea Grass
Panicum microcarpon — Small-fruited Witchgrass
Panicum nitidum — Shining Witchgrass
Panicum nitidum var. nitidum — Shining Witchgrass
Panicum nitidum var. ramulosum — Small-fruited Witchgrass
Panicum nudicaule — Naked Witchgrass
Panicum ovale var. villosum — White-haired Witchgrass
Panicum ovinum — Nerved Witchgrass
Panicum philadelphicum var. philadelphicum — Woodland Panicgrass
Panicum pinetorum — Pineland Witchgrass
Panicum polycaulon — Hairless Witchgrass
Panicum pseudopubescens — White-haired Witchgrass
Panicum ramosum — Browntop Millet, Dixie Signalgrass
Panicum rhizomatum — Small Beaked Panicum, Small Beaked Panicgrass
Panicum rigidulum ssp. elongatum — Tall Flat Panicgrass, Stalked Panicgrass
Panicum rigidulum ssp. rigidulum — Dense Panicgrass
Panicum rigidulum ssp. rigidulum — Redtop Panicgrass
Panicum roanokense — Roanoke Witchgrass
Panicum sphaerocarpon var. inflatum — Round-fruited Witchgrass, Roundseed Witchgrass
Panicum sphaerocarpon var. sphaerocarpon — Round-fruited Witchgrass, Roundseed Witchgrass
Panicum sphagnicola — Peaty Witchgrass
Panicum spretum — Long-ligule Witchgrass, Coastal Plain Witchgrass
Panicum spretum — Lindheimer's Witchgrass
Panicum strigosum var. leucoblepharis — Dwarf Witchgrass
Panicum strigosum var. strigosum — Rough-hairy Witchgrass
Panicum tennesseense — Slender-stemmed Witchgrass, Western Woolly Witchgrass
Panicum tsugetorum — American Witchgrass
Panicum tuckermanii — Woodland Panicgrass
Panicum tuckermannii — Woodland Panicgrass
Panicum xalapense var. strictirameum — Open-flower Witchgrass, Open-flower Rosette Grass
Panicum xalapense var. xalapense — Open-flower Witchgrass, Open-flower Rosette Grass
Panicum yadkinense — Spotted-sheath Witchgrass
Papyrius papyriferus — Paper Mulberry
Parathelypteris noveboracensis — New York Fern
Parathelypteris simulata — Bog Fern, Massachusetts Fern
Parietaria debilis — Florida Pellitory
Parietaria nummularia — Florida Pellitory
Paronychia dichotoma — Yellow Nailwort, Virginia Whitlow-wort
Paronychia fastigiata var. pumila — Mountain Nailwort, Shale-barren Whitlow-wort
Paronychia virginica ssp. virginica — Yellow Nailwort, Virginia Whitlow-wort
Paronychia virginica var. virginica — Yellow Nailwort, Virginia Whitlow-wort
Parsonsia balsamona — Colombian Waxweed
Parsonsia petiolata — Clammy Cuphea, Blue Waxweed
Parthenium hispidum var. auriculatum — Glade Wild Quinine
Parthenium integrifolium — Common Wild Quinine
Parthenium integrifolium — Glade Wild Quinine
Parthenium integrifolium — Sandhill Wild Quinine, Mabry's Wild Quinine, Carolina Wild Quinine
Parthenium radfordii — Sandhill Wild Quinine, Mabry's Wild Quinine, Carolina Wild Quinine
Parthenocissus hirsuta — Virginia Creeper
Paspalidium geminatum var. geminatum — Alligator Grass, Paspalidium, Kissimmee Grass
Paspalum ciliatifolium — Fringeleaf Paspalum, thin paspalum
Paspalum ciliatifolium var. ciliatifolium — Fringeleaf Paspalum, thin paspalum
Paspalum ciliatifolium var. muhlenbergii — thin paspalum
Paspalum circulare — Field Crowngrass, Field Paspalum
Paspalum difforme — Florida Paspalum, Big Paspalum
Paspalum fissifolium — Common Carpetgrass
Paspalum floridanum var. floridanum — Florida Paspalum, Big Paspalum
Paspalum floridanum var. glabratum — Florida Paspalum, Big Paspalum
Paspalum furcatum — Big Carpetgrass
Paspalum giganteum — Florida Paspalum, Big Paspalum
Paspalum longipilum — Field Crowngrass, Field Paspalum
Paspalum notatum var. notatum — Bahia-grass
Paspalum propinquum — Fringeleaf Paspalum, thin paspalum
Paspalum pubescens — thin paspalum
Paspalum repens — Water Paspalum, Horsetail Crowngrass
Paspalum repens var. fluitans — Water Paspalum, Horsetail Crowngrass
Paspalum setaceum var. muehlenbergii — thin paspalum
Pattalias palustre — Swallow-wort, Sand-vine, Gulf Coast Swallow-wort, Marsh Cynanchum
Pediomelum subacaulis — Nashville Breadroot
Pellaea ternifolia var. ternifolia — Arizona Cliffbrake
Pellaea ternifolia var. wrightiana — Wright's Cliffbrake
Peltandra glauca — White Arrow-arum, White Arum, Spoonflower
Peniophyllum linifolium — Threadleaf Sundrops, Flaxleaf Sundrops
Pennisetum americanum ssp. americanum — Pearl Millet
Pennisetum ciliare var. ciliare — Buffelgrass
Penstemon brittonorum — Appalachian Beardtongue, Gray's Beardtongue, Eastern Gray Beardtongue
Penstemon laevigatus ssp. calycosus — Longsepal Beardtongue
Penstemon laevigatus ssp. laevigatus — Smooth Beardtongue, Eastern Beardtongue, Eastern Smooth Beardtongue
Penstemon penstemon — Smooth Beardtongue, Eastern Beardtongue, Eastern Smooth Beardtongue
Pepo pepo — Pumpkin, Zucchini, Ornamental Gourd, Vegetable Marrow
Peramium ophioides — Lesser Rattlesnake-orchid, Lesser Rattlesnake-plantain
Peramium pubescens — Downy Rattlesnake-orchid, Downy Rattlesnake-plantain
Perilla frutescens var. crispa — Beefsteak-plant, Perilla
Perilla frutescens var. frutescens — Beefsteak-plant, Perilla
Persea borbonia var. pubescens — Swamp Redbay, Swamp Bay
Persicaria amphibia — Water Smartweed, Scarlet Smartweed
Persicaria cespitosa var. longiseta — Longbristle Smartweed, Bristly Lady's-thumb, Creeping Smartweed, Tufted Knotweed
Persicaria glabra — Dense-flower Smartweed
Persicaria muhlenbergii — Water Smartweed, Scarlet Smartweed
Persicaria opelousana — Mild Waterpepper, Swamp Smartweed
Persicaria persicaria — Spotted Lady's-thumb, Heart's-ease
Persicaria portoricensis — Dense-flower Smartweed
Persicaria punctata var. leptostachya — Dotted Smartweed
Persicaria punctata var. punctata — Dotted Smartweed
Persicaria virginiana var. filiformis — Japanese Jumpseed
Persicaria wallichii — Himalayan Knotweed, Kashmir Plume, cultivated knotweed
Persicaria wallichii var. wallichii — Himalayan Knotweed, Kashmir Plume, cultivated knotweed
Perularia bidentata — Southern Rein Orchid, Southern Gypsy-spike
Perularia flava — Tubercled Rein Orchid, Northern Gypsy-spike
Perularia scutellata — Southern Rein Orchid, Southern Gypsy-spike
Petalostemon albidus — White-tassels
Petalostemon carneus — Pink-tassels
Petalostemon gattingeri — Gattinger's Prairie-clover, Purple-tassels
Petalostemon gracilis — Sprawling White-tassels
Petalostemon purpureus — Purple Prairie-clover
Petalostemum purpureum — Purple Prairie-clover
Petunia ×hybrida — Garden Petunia
Petunia integrifolia — Garden Petunia
Phacelia bicknellii — Miami-mist
Phacelia boykinii — Miami-mist
Phacelia brevistyla — Fernleaf Phacelia, Purple Phacelia, Forest Phacelia
Phacelia hirsuta — Spotted Phacelia, Flatrock Phacelia
Phaeiris fulva — Copper Iris, Red Flag
Phaeiris giganticaerulea — Giant Blue Iris
Phaethusa laciniata — Southern Frostweed
Phaethusa occidentalis — Southern Crownbeard, Yellow Crownbeard
Phaethusa virginica — White Crownbeard, Common Frostweed, White Wingstem, Virginia Wingstem
Phalaris arundinacea var. arundinacea — Reed Canarygrass, Ribbongrass
Phalaris arundinacea var. picta — Reed Canarygrass, Ribbongrass
Pharbitis barbigera — Ivyleaf Morning Glory
Pharbitis hederacea — Ivyleaf Morning Glory
Pharbitis purpurea — Common Morning Glory
Phaseolus lathyroides — Phasey Bean, Wild Bushbean
Phaseolus polystachyus — Wild Bean, Wild Kidney Bean, Thicket Bean
Phaseolus polystachyus ssp. polystachyus — Wild Bean, Wild Kidney Bean, Thicket Bean
Phaseolus polystachyus ssp. sinuatus — Sandhill Bean, Trailing Wild Bean
Phegopteris phegopteris — Northern Beech Fern
Philadelphus floridus — Appalachian Mock-orange, Scentless Mock-orange
Philadelphus gattingeri — Ozark Mock-orange, Hairy Mock-orange
Philadelphus gloriosus — Appalachian Mock-orange, Scentless Mock-orange
Philadelphus grandiflorus — Appalachian Mock-orange, Scentless Mock-orange
Philadelphus inodorus var. grandiflorus — Appalachian Mock-orange, Scentless Mock-orange
Philadelphus inodorus var. inodorus — Appalachian Mock-orange, Scentless Mock-orange
Philadelphus inodorus var. strigosus — Appalachian Mock-orange, Scentless Mock-orange
Philadelphus intectus — Ozark Mock-orange, Hairy Mock-orange
Philadelphus latifolius — Ozark Mock-orange, Hairy Mock-orange
Philadelphus pubescens var. pubescens — Ozark Mock-orange, Hairy Mock-orange
Philadelphus pubescens var. verrucosus — Ozark Mock-orange, Hairy Mock-orange
Philadelphus sharpianus — Hairy Mock-orange, Cumberland Mock-orange
Philotria densa — Brazilian Waterweed, Brazilian Egeria, "Brazilian Elodea", "Anacharis"
Phlox bifida ssp. bifida — Cleft Phlox, Sand Phlox, Ten-point Phlox, Starry Phlox
Phlox bifida ssp. stellaria — Cleft Phlox, Sand Phlox, Ten-point Phlox, Starry Phlox
Phlox brittonii — Moss Phlox, Mountain-pink, "Thrift"
Phlox carolina ssp. alta — Carolina Phlox, Thick-leaf Phlox, Giant Phlox
Phlox carolina ssp. angusta — Carolina Phlox, Thick-leaf Phlox, Giant Phlox
Phlox carolina ssp. turritella — Carolina Phlox, Thick-leaf Phlox, Giant Phlox
Phlox glaberrima ssp. interior — Smooth Phlox
Phlox glaberrima ssp. triflora — Smooth Phlox
Phlox maculata — Northern Meadow Phlox
Phlox maculata — Leafy Meadow Phlox, Wild Sweet William
Phlox maculata var. maculata — Northern Meadow Phlox
Phlox maculata var. purpurea — Leafy Meadow Phlox, Wild Sweet William
Phlox pilosa var. pilosa — Downy Phlox
Phoebanthus tenuifolia — pineland false sunflower
Pholiurus incurvus — Curved Sickle-grass, Hard Grass, Thin-tail
Phoradendron eatonii — American Mistletoe, Christmas Mistletoe
Phoradendron flavescens — American Mistletoe, Christmas Mistletoe
Phoradendron macrotomum — American Mistletoe, Christmas Mistletoe
Phoradendron serotinum ssp. serotinum — American Mistletoe, Christmas Mistletoe
Photinia floribunda — Purple Chokeberry
Photinia glabra × serratifolia — Fraser's Photinia, Redtip Photinia
Photinia melanocarpa — Black Chokeberry
Photinia prunifolia — Purple Chokeberry
Photinia pyrifolia — Red Chokeberry
Phragmites australis ssp. australis — Common Reed, Old World Reed
Phragmites australis var. australis — Common Reed, Old World Reed
Phragmites phragmites — Common Reed, Old World Reed
Phryma leptostachya var. leptostachya — American Lopseed
Phyllanthus carolinensis — Carolina Leaf-flower
Phyllanthus caroliniensis var. caroliniensis — Carolina Leaf-flower
Phyllanthus lathyroides — Mascarene Island Leaf-flower
Phyllanthus urinaria ssp. urinaria — Chamber Bitter, Gripeweed
Phyllostachys nigra var. henionis — Black Bamboo
Phyllostachys pubescens — Moso Bamboo
Physalis ambigua — Clammy Ground-cherry
Physalis barbadensis — Downy Ground-cherry, Husk-tomato
Physalis barbadensis var. barbadensis — Downy Ground-cherry, Husk-tomato
Physalis intermedia — Virginia Ground-cherry
Physalis longifolia — Longleaf Ground-cherry
Physalis maritima — Dune Ground-cherry, Sand Ground-cherry, Walter's Ground-cherry
Physalis monticola — Virginia Ground-cherry
Physalis nyctaginea — Clammy Ground-cherry
Physalis pendula — Smooth Ground-cherry, Cutleaf Ground-cherry
Physalis pruinosa — Gray Ground-cherry, Strawberry-tomato, Dwarf Cape-gooseberry
Physalis pubescens var. integrifolia — Downy Ground-cherry, Husk-tomato
Physalis subglabrata — Longleaf Ground-cherry
Physalis turbinata — Downy Ground-cherry, Husk-tomato
Physalis viscosa — Dune Ground-cherry, Sand Ground-cherry, Walter's Ground-cherry
Physalodes physalodes — Apple-of-Peru, Shoo-fly-plant
Physostegia virginiana var. arenaria — Southern Obedient-plant
Physostegia virginiana var. virginiana — Northern Obedient-plant, False Dragonhead
Piaropus crassipes — Water-hyacinth
Picea australis — Red Spruce, He Balsam
Pilea pumila var. deamii — Greenfruit Clearweed, Richweed, Coolwort, Canadian Clearweed
Pilea pumila var. pumila — Greenfruit Clearweed, Richweed, Coolwort, Canadian Clearweed
Pilosella piloselloides ssp. piloselloides — Glaucous King-devil, Smooth Hawkweed, Tall Hawkweed
Pilostaxis baldwinii — White Milkwort, Baldwin's Milkwort
Pilostaxis cymosa — Tall Pinebarren Milkwort
Pilostaxis lutea — Orange Milkwort, Red-hot-poker, Candyroot, Yellow Bachelor's-buttons
Pilostaxis nana — Dwarf Milkwort, Candyroot
Pilostaxis ramosa — Short Pinebarren Milkwort, Low Pinebarren Milkwort, Dwarf Milkwort, Savanna Milkwort
Pimpinella saxifraga — Burnet-saxifrage
Pinguicula elatior — Blue Butterwort
Pinus australis — Longleaf Pine, Southern Pine
Pinus rigida ssp. rigida — Pitch Pine
Pinus rigida ssp. serotina — Pond Pine, Pocosin Pine, Marsh Pine
Piriqueta tomentosa — Carolina Piriqueta, Pitted Stripeseed
Pityopsis adenolepis — Carolina Silkgrass, Pineland Silkgrass, Grassleaf Goldenaster
Pityopsis aspera — Pineland Silkgrass, Sticky Goldenaster, Grassleaf Goldenaster
Pityopsis aspera — Carolina Silkgrass, Pineland Silkgrass, Grassleaf Goldenaster
Pityopsis nervosa var. nervosa — Common Silkgrass, Grassleaf Goldenaster
Pityothamnus angustifolius — Slimleaf Pawpaw
Pityothamnus angustifolius — Slimleaf Pawpaw
Pityothamnus incanus — Flag Pawpaw, Polecat Bush, Woolly Pawpaw
Pityothamnus reticulatus — Netleaf Pawpaw
Planodes virginica — Sibara, Virginia-cress, Virginia Rockcress, Virginia Winged Rockcress
Plantago hybrida — Many-seeded Plantain, Small Plantain, Slender Plantain
Plantago psyllium — Sand Plantain, Leafy-stemmed Plantain, Psyllium, Flaxseed Plantain
Plantago rugelii var. asperula — American Plantain, Broad-leaved Plantain, Blackseed Plantain, Rugel’s Plantain
Platanthera fissa — Purple Fringeless Orchid, Purple Spire Orchid, Pride-of-the-peak
Platanthera fissa — Small Purple Fringed Orchid, Butterfly Orchid, Lesser Purple Fringed Orchid
Platanthera herbiola — Tubercled Rein Orchid, Northern Gypsy-spike
Platanthera orbiculata var. orbiculata — Large Round-leaved Orchid, Dessert-plate Orchid
Platanus ×acerifolia — London Planetree
Platanus hybrida — London Planetree
Pleopeltis polypodioides var. michauxiana — Resurrection Fern, Scaly Polypody
Pleuropterus zuccarinii — Japanese Knotweed, Japanese Bamboo, Japanese Buckwheat
Pluchea petiolata — Common Camphorweed, Camphor Pluchea, Marsh Fleabane
Pluchea rosea var. rosea — Rosy Camphorweed, Rose Fleabane, Savanna Fleabane, Marsh Fleabane
Pluchea tenuifolia — Stinking Camphorweed, Stinking Fleabane, Marsh Fleabane
Podophyllum cymosum — Umbrella-leaf, Pixie-parasol
Podostemon abrotanoides — Riverweed, Threadfoot, Riffleweed
Podostemon ceratophyllum — Riverweed, Threadfoot, Riffleweed
Podostigma pedicellata — Stalked Milkweed, Savanna Milkweed
Pogonia bifaria — Small Dragonhead Pogonia, Coastal Plain Small Spreading Pogonia
Pogonia divaricata — Large Dragonhead Pogonia, Rosebud Orchid, Large Spreading Pogonia
Pogonia verticillata — Large Whorled Pogonia, Large Five-leaves
Poinsettia cyathophora — Wild Poinsettia, Painted Leaf, Fire-on-the-mountain
Poinsettia dentata — Painted Leaf, Wild Poinsettia, Green Poinsettia, Toothed Spurge
Poinsettia geniculata — Fiddler's Spurge, Mexican Fireplant, Catalina, Jacob's-ladder
Poinsettia heterophylla — Fiddler's Spurge, Mexican Fireplant, Catalina, Jacob's-ladder
Poinsettia heterophylla — Wild Poinsettia, Painted Leaf, Fire-on-the-mountain
Polemonium longii — Spreading Jacob's-ladder, Creeping Jacob's-ladder, Greek Valerian
Polemonium van-bruntiae — Bog Jacob's-ladder
Polycodium arenicola — Dwarf Deerberry
Polycodium ashei — Florida Deerberry, Whiteleaf Deerberry
Polycodium candicans — Appalachian Deerberry
Polycodium candicans — Common Deerberry
Polycodium floridanum — Florida Deerberry, Whiteleaf Deerberry
Polycodium melanocarpum — Southern Deerberry
Polycodium neglectum — Common Deerberry
Polycodium sericeum — Southern Deerberry
Polycodium stamineum — Common Deerberry
Polygala aboriginum — Racemed Milkwort, Bitter Milkwort
Polygala balduinii var. balduinii — White Milkwort, Baldwin's Milkwort
Polygala baldwinii — White Milkwort, Baldwin's Milkwort
Polygala boykinii — Boykin's Milkwort
Polygala harperi — Maryland Milkwort
Polygala ramosior — Drumheads, Crossleaf Milkwort
Polygala verticillata — Whorled Milkwort
Polygala verticillata — Loose Milkwort, Alternate Milkwort, Whorled Milkwort
Polygala verticillata var. dolichoptera — Loose Milkwort, Alternate Milkwort, Whorled Milkwort
Polygala violacea — Showy Milkwort
Polygala viridescens — Field Milkwort, Blood Milkwort
Polygonatum commutatum — Smooth Solomon's Seal
Polygonella polygama var. croomii — Carolina October-flower
Polygonella polygama var. polygama — Common October-flower
Polygonum americanum — Southern Jointweed, Showy Jointweed
Polygonum aubertii — Lace Vine, Silver-lace-vine, China Fleece-vine, Russian Vine
Polygonum caespitosum var. longisetum — Longbristle Smartweed, Bristly Lady's-thumb, Creeping Smartweed, Tufted Knotweed
Polygonum convolvulus var. subulatum — Climbing Buckwheat, Nimblewill, Black Bindweed
Polygonum fimbriatum — Sandhill Jointweed, Fringed Thysanella
Polygonum hydropiperoides var. opelousanum — Mild Waterpepper, Swamp Smartweed
Polygonum hydropiperoides var. setaceum — Swamp Smartweed, Bog Smartweed
Polygonum pinicola — Wireweed, Tall Jointweed
Polygonum polygamum var. croomii — Carolina October-flower
Polygonum polygamum var. polygamum — Common October-flower
Polygonum punctatum var. confertiflorum — Dotted Smartweed
Polygonum scandens var. cristatum — Common Climbing Buckwheat
Polygonum setaceum var. setaceum — Swamp Smartweed, Bog Smartweed
Polygonum setaceum var. tonsum — Swamp Smartweed, Bog Smartweed
Polygonum smallianum — Largeleaf Wireweed
Polygonum tenue var. protrusum — Glade Knotweed, Slender Knotweed
Polygonum tenue var. tenue — Glade Knotweed, Slender Knotweed
Polymnia radiata — White-flowered Leafcup, Small-flowered Leafcup
Polypodium aureum — Goldfoot Fern, Golden Polypody
Polypodium polypodioides var. michauxianum — Resurrection Fern, Scaly Polypody
Polystichum acrostichoides var. acrostichoides — Christmas Fern
Polystichum acrostichoides var. lonchitoides — Christmas Fern
Polystichum falcatum — Japanese Holly-fern, Asian Net-veined Holly Fern
Polystichum fortunei — Fortune's Holly-fern, Fortune's Net-veined Holly Fern
Pontederia azurea — Rooted Water-hyacinth, anchored water-hyacinth
Pontederia crassipes — Water-hyacinth
Pontederia lanceolata — Lanceleaf Pickerelweed
Pontederia vaginalis — Monochoria, heartshape false pickerelweed
Populus balsamifera var. balsamifera — Balsam Poplar, Hackmatack, Tacamahac
Populus deltoides var. deltoides — Eastern Cottonwood
Populus deltoides var. occidentalis — Plains Cottonwood, Texas Cottonwood
Populus italica — European Black Poplar, Lombardy Poplar, Black Poplar
Populus nigra var. italica — European Black Poplar, Lombardy Poplar, Black Poplar
Populus nigra var. nigra — European Black Poplar, Lombardy Poplar, Black Poplar
Porteranthus stipulatus — Midwestern Indian-physic, American Ipecac
Porteranthus trifoliatus — Bowman's Root, Mountain Indian Physic, Fawn's Breath
Potentilla canadensis var. canadensis — Dwarf Cinquefoil, Running Five-fingers
Potentilla canadensis var. villosissima — Dwarf Cinquefoil, Running Five-fingers
Potentilla caroliniana — Dwarf Cinquefoil, Running Five-fingers
Potentilla monspeliensis — Strawberry-weed, Rough Cinquefoil, Norwegian Cinquefoil
Potentilla pumila — Dwarf Cinquefoil, Running Five-fingers
Poterium polygamum — Salad Burnet, Garden Burnet, Fodder Burnet
Poterium sanguisorba — Salad Burnet, Garden Burnet, Fodder Burnet
Poterium sanguisorba ssp. balearicum — Salad Burnet, Garden Burnet, Fodder Burnet
Poterium sanguisorba ssp. muricatum — Salad Burnet, Garden Burnet, Fodder Burnet
Prenanthes alba ssp. pallida — Gall-of-the-earth, Three-leaved Rattlesnake-root
Prenanthes cylindrica — Cylindrical Rattlesnake-root, Appalachian Rattlesnake-root
Prenanthes cylindrica — Roan Mountain Rattlesnake-root, Appalachian Rattlesnake-root
Prenanthes serpentaria var. barbata — Barbed Rattlesnake-root, Flatwoods Rattlesnake-root, Prairie Lion’s-foot
Proserpinaca palustris var. amblyogona — Marsh Mermaid-weed, Common Mermaid-weed
Proserpinaca palustris var. crebra — Marsh Mermaid-weed, Common Mermaid-weed
Proserpinaca palustris var. palustris — Marsh Mermaid-weed, Common Mermaid-weed
Proserpinaca platycarpa — Marsh Mermaid-weed, Common Mermaid-weed
Prunella vulgaris var. hispida — Eurasian Self-heal, Eurasian Heal-all
Prunus alleghaniensis — Allegheny Plum, Allegheny Sloe
Prunus americana var. lanata — Big-tree Plum, Mexican Plum
Prunus cuneata — Susquehanna Cherry, Appalachian Sand Cherry, Appalachian Dwarf-cherry
Prunus depressa — Prostrate Dwarf-cherry, Prostrate Sand Cherry, New England Sand Cherry
Prunus domestica var. institia — European Plum, Damson, Bullace
Prunus gravesii — Beach Plum
Prunus injucunda — Hog Plum, Flatwoods Plum
Prunus insititia — European Plum, Damson, Bullace
Prunus maritima var. gravesii — Beach Plum
Prunus maritima var. maritima — Beach Plum
Prunus mitis — Hog Plum, Flatwoods Plum
Prunus pennsylvanica — Fire Cherry, Pin Cherry
Prunus pumila var. cuneata — Susquehanna Cherry, Appalachian Sand Cherry, Appalachian Dwarf-cherry
Prunus rivularis — Munson Plum, Wild-goose Plum
Prunus umbellata var. injuncunda — Hog Plum, Flatwoods Plum
Prunus umbellata var. umbellata — Hog Plum, Flatwoods Plum
Prunus yedoensis — Yoshino Cherry
Pseudognaphalium obtusifolium ssp. praecox — Fragrant Rabbit-tobacco, Eastern Rabbit-tobacco, Sweet Everlasting, Catfoot
Pseudolycopodiella caroliniana var. caroliniana — Carolina Bog-clubmoss, Slender Clubmoss
Pseudolycopodiella caroliniana var. caroliniana — Florida Bog Clubmoss
Psoralea virgata — Pineland Leatherroot, Slender Leatherroot, Pineland Scurfpea
Ptelea baldwinii — Wafer-ash, Hoptree
Ptelea microcarpa — Wafer-ash, Hoptree
Ptelea serrata — Wafer-ash, Hoptree
Pteridium aquilinum ssp. pseudocaudatum — Southern Bracken
Pteris latiuscula var. latiuscula — Eastern Bracken, Brake
Pteris latiuscula var. pseudocaudata — Southern Bracken
Pterocaulon undulatum — Black Snakeroot, Dense-spike Blackroot, Pineland Wingstem
Ptilimnium viviparum — Harperella, piedmont mock bishopweed
Pueraria thunbergiana — Kudzu, Foot-a-Day
Pycnanthemum aristatum — Awned Mountain-mint
Pycnanthemum hyssopifolium — Savanna Mountain-mint, Savanna Mint
Pycnanthemum incanum var. loomisii — Loomis's Mountain-mint
Pycnanthemum pycnanthemoides — Woodland Mountain-mint, Southern Mountain-mint
Pycnanthemum tullia — Woodland Mountain-mint, Southern Mountain-mint
Pycnodoria multifida — Spider Brake, Wall Fern, Huguenot Fern
Pycnodoria vittata — Ladder Brake, Chinese Brake Fern
Pycnothymus rigidus — Florida Pennyroyal, Wild Pennyroyal
Pylostachya balduinii — White Milkwort, Baldwin's Milkwort
Pylostachya cymosa — Tall Pinebarren Milkwort
Pylostachya lutea — Orange Milkwort, Red-hot-poker, Candyroot, Yellow Bachelor's-buttons
Pylostachya nana — Dwarf Milkwort, Candyroot
Pylostachya ramosa — Short Pinebarren Milkwort, Low Pinebarren Milkwort, Dwarf Milkwort, Savanna Milkwort
Pyracantha crenulata — Chinese Firethorn
Pyrrhopappus carolinianus var. georgianus — Carolina False-dandelion, Carolina Desert-chicory
Pyrus americana — American Mountain-ash, American Rowan
Pyrus angustifolia — Southern Crabapple, Wild Crabapple
Pyrus arbutifolia — Red Chokeberry
Pyrus aucuparia — European Mountain-ash, Rowan
Pyrus baccata — Siberian Crabapple
Pyrus coronaria — Sweet Crabapple, Wild Crabapple
Pyrus floribunda — Purple Chokeberry
Pyrus lancifolia — Sweet Crabapple, Wild Crabapple
Pyrus malus — Common Apple
Pyrus melanocarpa — Black Chokeberry
Pyrus serratifolia — Taiwanese Redtip
Pyrus speciosa — Common Flowering Quince
Pyrus villosa — Oriental Photinia
Quamasia hyacinthina — Wild Hyacinth, Eastern Camas Lily, Quamash Lily
Quamoclit coccinea — Small Red Morning Glory, Scarlet Creeper
Quamoclit quamoclit — Cypress-vine
Quamoclit vulgaris — Cypress-vine
Quercus cinerea — Bluejack Oak
Quercus coccinea var. coccinea — Scarlet Oak
Quercus coccinea var. tuberculata — Scarlet Oak
Quercus falcata var. pagodifolia — Cherrybark Oak, Swamp Spanish Oak
Quercus falcata var. triloba — Southern Red Oak, Spanish Oak
Quercus hemisphaerica var. hemisphaerica — Darlington Oak, Sand Laurel Oak
Quercus hemisphaerica var. maritima — Darlington Oak, Sand Laurel Oak
Quercus macrocarpa — Bur Oak, Mossycup Oak
Quercus margarettae — Sand Post Oak, Scrub Post Oak, Margaret's Oak
Quercus margarettiae — Sand Post Oak, Scrub Post Oak, Margaret's Oak
Quercus muhlenbergii — Chinquapin Oak, Yellow Chestnut Oak, Yellow Oak
Quercus nuttallii — Nuttall Oak, Texas Red Oak
Quercus obtusa — Laurel Oak, Swamp Laurel Oak, Diamond Leaf Oak
Quercus prinoides var. acuminata — Chinquapin Oak, Yellow Chestnut Oak, Yellow Oak
Quercus prinoides var. prinoides — Dwarf Chinquapin Oak
Quercus rubra — Southern Red Oak, Spanish Oak
Quercus rubra var. pagodaefolia — Cherrybark Oak, Swamp Spanish Oak
Quercus shumardii var. schneckii — Shumard Oak, Swamp Red Oak
Quercus shumardii var. texana — Nuttall Oak, Texas Red Oak
Quercus stellata var. boyntonii — Boynton Oak, Boynton Sand Post Oak
Quercus stellata var. margaretta — Sand Post Oak, Scrub Post Oak, Margaret's Oak
Quercus stellata var. stellata — Post Oak
Radicula palustris — Bog Yellowcress, Marshcress
Raimannia drummondii — Beach Evening Primrose, Drummond's Evening Primrose
Raimannia humifusa — Dunes Evening Primrose, Seabeach Evening Primrose, Spreading Evening Primrose
Raimannia laciniata — Cutleaf Evening Primrose
Raimannia mollissima — Dunes Evening Primrose, Seabeach Evening Primrose, Spreading Evening Primrose
Ramium niveum — Ramie
Ranunculus arvensis var. tuberculatus — Corn Crowfoot, Hungerweed
Ranunculus ficaria ssp. bulbilifer — Fig Buttercup, Lesser Celandine, Pilewort
Ranunculus ficaria ssp. calthifolius — Fig Buttercup, Lesser Celandine, Pilewort
Ranunculus ficaria ssp. chrysocephalus — Fig Buttercup, Lesser Celandine, Pilewort
Ranunculus ficaria ssp. ficaria — Fig Buttercup, Lesser Celandine, Pilewort
Ranunculus ficaria ssp. ficariiformis — Fig Buttercup, Lesser Celandine, Pilewort
Ranunculus ficaria var. bulbifera — Fig Buttercup, Lesser Celandine, Pilewort
Ranunculus ficaria var. bulbifera — Fig Buttercup, Lesser Celandine, Pilewort
Ranunculus ficaria var. bulbifera — Fig Buttercup, Lesser Celandine, Pilewort
Ranunculus ficaria var. bulbifera — Fig Buttercup, Lesser Celandine, Pilewort
Ranunculus ficaria var. bulbifera — Fig Buttercup, Lesser Celandine, Pilewort
Ranunculus harveyi var. harveyi — Harvey's Buttercup, Harvey's Crowfoot
Ranunculus minimus — Mousetail
Ranunculus oblongifolius — Coastal Plain Spearwort
Ranunculus obtusiusculus — Water-plantain Crowfoot, Water-plantain Spearwort
Ranunculus palmatus — Carolina Buttercup, Swamp Buttercup
Ranunculus septentrionalis var. caricetorum — Northern Swamp Buttercup, Marsh Buttercup
Ranunculus septentrionalis var. pterocarpus — Northern Swamp Buttercup, Marsh Buttercup
Ranunculus septentrionalis var. septentrionalis — Northern Swamp Buttercup, Marsh Buttercup
Ratibida columnaris — Mexican Hat, Columnar Prairie Coneflower, Upright Coneflower, Long-headed Coneflower
Rehsonia ×formosa — Hybrid Asian Wisteria
Rehsonia floribunda — Japanese Wisteria
Rehsonia sinensis — Chinese Wisteria
Reynoutria ciliinodis — Fringed Climbing Buckwheat, Fringed Black Bindweed, Fringed Bindweed
Reynoutria japonica — Japanese Knotweed, Japanese Bamboo, Japanese Buckwheat
Reynoutria polystachya — Himalayan Knotweed, Kashmir Plume, cultivated knotweed
Rhacoma ilicifolia — Holly-leaf Rhacoma, Christmasberry, Quailberry
Rhamnus citrifolia — Dahurian Buckthorn, Davurian Buckthorn
Rhamnus davurica ssp. nipponica — Dahurian Buckthorn, Davurian Buckthorn
Rhamnus frangula — Glossy Buckthorn, European Alder-buckthorn
Rhaphis pauciflora — Florida Goldbeard, Florida Rhaphis, Florida Beardgrass
Rhexia ciliosa — Ciliate Meadowbeauty, Short Meadowbeauty, Fringed Meadowbeauty, Bog Meadowbeauty
Rhexia delicatula — Pale Meadowbeauty, Maryland Meadowbeauty, Dull Meadowbeauty
Rhexia lanceolata — White Meadowbeauty
Rhexia mariana — Pale Meadowbeauty, Maryland Meadowbeauty, Dull Meadowbeauty
Rhexia serrulata — Nuttall's Meadowbeauty
Rhexia stricta — Virginia Meadowbeauty, Wingstem Meadowbeauty, Deergrass
Rhexia virginica var. purshii — Virginia Meadowbeauty, Wingstem Meadowbeauty, Deergrass
Rhodiola roanensis — Roseroot, Goldenroot, King's Crown
Rhododendron bakeri — Cumberland Azalea, Baker's Azalea
Rhododendron canescens var. candidum — Piedmont Azalea, Southern Pinxter Azalea, Hoary Azalea
Rhododendron canescens var. canescens — Piedmont Azalea, Southern Pinxter Azalea, Hoary Azalea
Rhododendron canescens var. subglabrum — Piedmont Azalea, Southern Pinxter Azalea, Hoary Azalea
Rhododendron minus var. minus — Gorge Rhododendron, Punctatum, Piedmont Rhododendron
Rhododendron minus var. minus — Carolina Rhododendron, Punctatum
Rhododendron oblongifolium — Swamp Azalea, Clammy Azalea, Swamp Honeysuckle, Catchfly Azalea
Rhododendron speciosum — Oconee Azalea
Rhus hirta — Staghorn Sumac
Rhus pumila — Michaux's Sumac, Dwarf Sumac, False Poison Sumac
Rhus radicans var. radicans — Eastern Poison Ivy
Rhus radicans var. rydbergii — Wesern Poison Ivy
Rhus radicans var. vulgaris — Eastern Poison Ivy
Rhus radicans var. vulgaris — Midwestern Poison Ivy
Rhynchelytrum repens — Rose Natalgrass, Creeping Molasses-grass
Rhynchelytrum roseum — Rose Natalgrass, Creeping Molasses-grass
Rhynchosia erecta — Twining Snoutbean, Erect Snoutbean
Rhynchosia intermedia — Twining Snoutbean, Erect Snoutbean
Rhynchosia simplicifolius — Dollarweed, Dollarleaf Snoutbean, Roundleaf Snoutbean
Rhynchospora globularis var. recognita — Cymose Beakrush, Cymose Beaksedge
Rhynchospora glomerata var. glomerata — Clustered Beaksedge
Rhytidomene lupinellus — Lupine Scurfpea, Sandhill Scurfpea, Lupine Leatherroot
Ribes grossularia — Garden Gooseberry, European Gooseberry
Ribes sativum — Garden Red Currant, cultivated currant
Ridan alternifolia — Common Wingstem
Ridan paniculata — Walter's Wingstem, Carolina Crownbeard, Walter's Crownbeard
Riedlea hirsuta — Bretonica-peluda
Robinia elliottii — Dwarf Bristly Locust, Dwarf Locust
Robinia fertilis — Arnot Bristly Locust, Fruitful Locust
Robinia grandiflora — Arnot Bristly Locust, Fruitful Locust
Robinia pallida — Common Bristly Locust
Robinia speciosa — Common Bristly Locust
Robinia viscosa var. hartwigii — Granite Dome Locust, Highlands Locust, Hartwig's Locust
Rorippa microphylla — Narrow-fruited Watercress, One-row Yellowcress
Rorippa nasturtium-aquaticum — Watercress
Rorippa palustris — Bog Yellowcress, Marshcress
Rorippa palustris ssp. glabra var. fernaldiana — Bog Yellowcress, Marshcress
Rorippa palustris var. palustris — Bog Yellowcress, Marshcress
Rosa blanda — Smooth Rose, Meadow Rose
Rosa floridana — Swamp Rose
Rosa gallica — Damask Rose, French Rose
Rosa lancifolia — Swamp Rose
Rosa luciae — Memorial Rose, Dorothy Perkins Rose, Lucie Rose
Rosa lyoni — Carolina Rose
Rosa obtusiuscula — Swamp Rose
Rosa serrulata — Carolina Rose
Rosa setigera var. setigera — Ozark Rose, Climbing Prairie Rose
Rosa setigera var. tomentosa — Ozark Rose, Climbing Prairie Rose
Rosa virginiana — Virginia Rose
Rottboellia exaltata — Itch-grass
Rubus andrewsianus — Pennsylvania Blackberry, Highbush Blackberry, Eastern Blackberry, Southern Blackberry
Rubus apogaeus — Common Dewberry, Northern Dewberry
Rubus arenicola — Common Dewberry, Northern Dewberry
Rubus armeniacus — European Blackberry, Himalayan Blackberry, Himalaya-berry
Rubus arvensis — Sawtooth Blackberry
Rubus audax — Sand Blackberry
Rubus baileyanus — Common Dewberry, Northern Dewberry
Rubus betulifolius — Pennsylvania Blackberry, Highbush Blackberry, Eastern Blackberry, Southern Blackberry
Rubus boyntonii — Common Dewberry, Northern Dewberry
Rubus carolinianus — American Red Raspberry
Rubus clarus — Common Dewberry, Northern Dewberry
Rubus dalibarda — Robin-runaway, Star-violet, Dewdrop
Rubus defectionis — Pennsylvania Blackberry, Highbush Blackberry, Eastern Blackberry, Southern Blackberry
Rubus depavitus — Common Dewberry, Northern Dewberry
Rubus discolor — Chesapeake Blackberry, Topsy Blackberry
Rubus elegantulus — Bristly Blackberry
Rubus floricomus — Pennsylvania Blackberry, Highbush Blackberry, Eastern Blackberry, Southern Blackberry
Rubus floridus — Pennsylvania Blackberry, Highbush Blackberry, Eastern Blackberry, Southern Blackberry
Rubus frondosus — Pennsylvania Blackberry, Highbush Blackberry, Eastern Blackberry, Southern Blackberry
Rubus grimesii — Common Dewberry, Northern Dewberry
Rubus idaeus ssp. sachalinensis — American Red Raspberry
Rubus idaeus var. idaeus — Eurasian Red Raspberry
Rubus idaeus var. strigosus — American Red Raspberry
Rubus immanis — Pennsylvania Blackberry, Highbush Blackberry, Eastern Blackberry, Southern Blackberry
Rubus iniens — Common Dewberry, Northern Dewberry
Rubus invisus — Common Dewberry, Northern Dewberry
Rubus jaysmithii — Common Dewberry, Northern Dewberry
Rubus laudatus — Pennsylvania Blackberry, Highbush Blackberry, Eastern Blackberry, Southern Blackberry
Rubus linkianus — European Blackberry, Himalayan Blackberry, Himalaya-berry
Rubus longii — Sand Blackberry
Rubus lucidus — Southern Dewberry, Coastal Plain Dewberry
Rubus nefrens — Common Dewberry, Northern Dewberry
Rubus nigrobaccus — Allegheny Blackberry
Rubus obvius — Common Dewberry, Northern Dewberry
Rubus odoratus var. columbianus — Purple Flowering-raspberry, Thimbleberry, Eastern Mapleleaf-raspberry
Rubus particularis — Common Dewberry, Northern Dewberry
Rubus pauxillus — Pennsylvania Blackberry, Highbush Blackberry, Eastern Blackberry, Southern Blackberry
Rubus pergratus — Pennsylvania Blackberry, Highbush Blackberry, Eastern Blackberry, Southern Blackberry
Rubus pernagaeus — Common Dewberry, Northern Dewberry
Rubus plexus — Common Dewberry, Northern Dewberry
Rubus probabilis — Sand Blackberry
Rubus procerus — European Blackberry, Himalayan Blackberry, Himalaya-berry
Rubus racemiger — Bristly Blackberry
Rubus recurvans — Pennsylvania Blackberry, Highbush Blackberry, Eastern Blackberry, Southern Blackberry
Rubus repens — Robin-runaway, Star-violet, Dewdrop
Rubus rosarius — Pennsylvania Blackberry, Highbush Blackberry, Eastern Blackberry, Southern Blackberry
Rubus scambens — Common Dewberry, Northern Dewberry
Rubus semisetosus — Bristly Blackberry
Rubus sewardianus — Common Dewberry, Northern Dewberry
Rubus strigosus — American Red Raspberry
Rubus temerarius — Common Dewberry, Northern Dewberry
Rubus whartoniae — Common Dewberry, Northern Dewberry
Rudbeckia acuminata — Common Eastern Coneflower, Orange Coneflower
Rudbeckia amplectens — Woodland Black-eyed Susan
Rudbeckia beadlei — Chauncey's Coneflower
Rudbeckia bicolor — Weedy Black-eyed Susan
Rudbeckia brittonii — Woodland Black-eyed Susan
Rudbeckia divergens — Coastal Plain Black-eyed Susan
Rudbeckia foliosa — Common Eastern Coneflower, Orange Coneflower
Rudbeckia fulgida var. spathulata — Orange Coneflower
Rudbeckia glabra — Narrow-leaved Coneflower, St. John's Black-eyed Susan, Shiny Coneflower
Rudbeckia longipes — Weedy Black-eyed Susan
Rudbeckia monticola — Woodland Black-eyed Susan
Rudbeckia nitida var. nitida — Narrow-leaved Coneflower, St. John's Black-eyed Susan, Shiny Coneflower
Rudbeckia rupestris — Blue Ridge Three-lobed Coneflower, Brown-eyed Susan
Rudbeckia sericea — Weedy Black-eyed Susan
Rudbeckia triloba var. beadleyi — Chauncey's Coneflower
Ruellia caroliniansis ssp. ciliosa var. cinerascens — Sandhills Wild-petunia, Dwarf Wild-petunia
Ruellia caroliniensis ssp. ciliosa var. ciliosa — Sandhills Wild-petunia, Dwarf Wild-petunia
Ruellia malacosperma — Mexican Bluebell, Mexican Petunia
Ruellia parviflora — Carolina Wild-petunia, Common Wild-petunia, Hairy Ruellia
Ruellia pedunculata — Pursh's Wild-petunia
Rufacer carolinianum — Carolina Red Maple, Trident Red Maple
Rufacer drummondii — Drummond’s Maple, Swamp Red Maple, Drummond’s Red Maple
Rufacer rubrum — Eastern Red Maple
Rumex acetosella ssp. pyrenaicus — Sheep Sorrel, Red Dock, Sourgrass, Field Sorrel
Rumex acetosella var. acetosella — Sheep Sorrel, Red Dock, Sourgrass, Field Sorrel
Rumex acetosella var. pyrenaeus — Sheep Sorrel, Red Dock, Sourgrass, Field Sorrel
Rumex spinosus — Spiny Emex
Ruscus aculeatus — Butcher's Broom, Knee Holly
Rynchospora caduca — Angle-stem Beaksedge
Rynchospora capitellata — Brownish Beaksedge
Rynchospora careyana — Carey's Horned Beaksedge, broadfruit horned beaksedge
Rynchospora corniculata — Short-bristled Horned Beaksedge
Rynchospora cymosa — Cymose Beakrush, Cymose Beaksedge
Rynchospora dodecandra — Sandy-field Beaksedge, Sandhill Beaksedge
Rynchospora filifolia — Threadleaf Beaksedge
Rynchospora globularis — Globe Beaksedge
Rynchospora glomerata — Clustered Beaksedge
Rynchospora gracilenta — Slender Beaksedge
Rynchospora harperi — Harper's Beaksedge
Rynchospora inexpansa — Nodding Beaksedge
Rynchospora inundata — Narrow-fruit Horned Beaksedge
Rynchospora leptocarpa — Slender-fruit Beaksedge
Rynchospora macra — Southern White Beaksedge
Rynchospora miliacea — Millet Beaksedge
Rynchospora pallida — Pale Beaksedge
Rynchospora patula — Angle-stem Beaksedge
Rynchospora pinetorum — Small's Beakrush, Small's Beaksedge
Rynchospora rariflora — Few-flower Beaksedge
Rynchospora tracyi — Tracy's Beaksedge
Sabal deeringiana — Dwarf Palmetto, Bush Palmetto, Dwarf Blue Palmetto, Bluestem Palmetto
Sabal jamesiana — Cabbage Palmetto
Sabbatia angularis — Rose-pink, Bitterbloom, Common Marsh-pink, American Centaury
Sabbatia brachiata — Narrowleaf Rose-pink, Narrowleaf Rose-gentian, Narrowleaf Sabatia
Sabbatia calycina — Coastal Rose-pink, Coastal Rose-gentian
Sabbatia campanulata — Annual Sea-pink, Salt-marsh Pink, Rose-of-Plymouth
Sabbatia campanulata — Slender Marsh-pink, Slender Rose-gentian
Sabbatia decandra — Bartram's Rose-gentian
Sabbatia dodecandra — Perennial Sea-pink, Large Marsh Rose-pink, Marsh Rose-gentian
Sabbatia foliosa — Blackwater Rose-pink, Marsh Rose-gentian
Sabbatia grandiflora — Largeflower Rose-gentian
Sabbatia harperi — Blackwater Rose-pink, Marsh Rose-gentian
Sabbatia paniculata — Four-angle Sabatia, Four-angle Rose-gentian
Sabina silicicola — Southern Red Cedar, Coastal Red Cedar
Sabina virginiana — Eastern Red Cedar
Sabulina brevifolia — Piedmont Sandwort, One-flower Sandwort
Sabulina caroliniana — Carolina Sandwort, Longroot, Pine-barren Sandwort
Sabulina glabra — Appalachian Sandwort
Sabulina groenlandica — Mountain Sandwort, Greenland Sandwort
Sabulina uniflora — Godfrey's Sandwort
Saccharodendron barbatum — Sugar Maple, Hard Maple, Sugar-tree
Saccharodendron floridanum — Southern Sugar Maple, Florida Maple
Saccharodendron leucoderme — Chalk Maple, Small Chalk Maple, White-bark Maple
Saccharodendron nigrum — Black Maple
Saccharum alopecuroidum — Silver Plumegrass
Sagittaria angustifolia — Bulltongue Arrowhead
Sagittaria cycloptera — Grassleaf Arrowhead, Grassy Arrowhead
Sagittaria engelmanniana ssp. engelmanniana — Engelmann's Arrowhead, Blackwater Arrowhead
Sagittaria engelmanniana ssp. longirostra — Appalachian Arrowhead, Southern Arrowhead, Longbeak Arrowhead
Sagittaria graminea ssp. chapmanii — Chapman's Arrowhead
Sagittaria graminea ssp. graminea — Grassleaf Arrowhead, Grassy Arrowhead
Sagittaria graminea ssp. weatherbiana — Weatherby’s Arrowhead
Sagittaria macrocarpa — Bunched Arrowhead
Sagittaria mohrii — Delta Arrowhead
Salicornia perennis — Perennial Glasswort, Woody Glasswort, Pickleweed
Salix ×fragilis — Crack Willow, Brittle Willow
Salix amphibia — Carolina Willow, Coastal Plain Willow
Salix cinerea ssp. cinerea — European Gray Willow
Salix cinerea ssp. oleifolia — Olive-leaf Willow, Common Sallow, Large Gray Willow
Salix coactilis — Silky Willow, Shrub Willow, Satin Willow
Salix humilis var. microphylla — Dwarf Upland Willow, Dwarf Prairie Willow, Sage Willow
Salix longipes — Carolina Willow, Coastal Plain Willow
Salix marginata — Black Willow
Salix matsudana — Weeping Willow
Salix tristis — Dwarf Upland Willow, Dwarf Prairie Willow, Sage Willow
Salsola kali var. tenuifolia — Russian Thistle, Tumbleweed
Salsola pestifer — Russian Thistle, Tumbleweed
Salvinia ×molesta — Giant Salvinia, Kariba Weed
Salvinia adnata — Giant Salvinia, Kariba Weed
Salvinia auriculata — Water Spangles, Floating Fern
Sambucus canadensis var. canadensis — Common Elderberry, American Elder
Sambucus racemosa — Eastern Red Elderberry, Red-berried Elder
Sambucus simpsonii — Common Elderberry, American Elder
Samolus floribundus — Water-pimpernel, Brookweed
Samolus valerandi — Water-pimpernel, Brookweed
Sanguisorba canadensis ssp. latifolia — Canada Burnet, American Burnet, White Burnet
Sanguisorba minor ssp. muricata — Salad Burnet, Garden Burnet, Fodder Burnet
Sanicula floridana — Florida Sanicle, Florida Snakeroot, Florida Black-snakeroot
Sanicula marylandica — Black Snakeroot, Maryland Sanicle, Maryland Black-snakeroot
Sapindus drummondii — Western Soapberry
Sapindus saponaria — Florida Soapberry
Sarcocornia ambigua — Perennial Glasswort, Woody Glasswort, Pickleweed
Sarcocornia pacifica — Perennial Glasswort, Woody Glasswort, Pickleweed
Sarothra drummondii — Drummond's St. Johnswort, Nits-and-lice
Sarothra gentianoides — Pineweed, Orange-grass, Orangeweed
Sarracenia drummondii — Whitetop Pitcherplant, Crimson Pitcherplant
Sarracenia purpurea ssp. gibbosa — Northern Purple Pitcherplant
Sarracenia purpurea ssp. purpurea — Northern Purple Pitcherplant
Sarracenia purpurea ssp. purpurea — Southern Appalachian Purple Pitcherplant
Sarracenia purpurea ssp. purpurea var. burkii — Rose Pitcherplant, Gulf Coast Pitcherplant
Sarracenia purpurea ssp. venosa — Southern Purple Pitcherplant, Frog's Breeches, Hunter's Cup
Sarracenia purpurea ssp. venosa var. burkii — Rose Pitcherplant, Gulf Coast Pitcherplant
Sarracenia purpurea ssp. venosa var. montana — Southern Appalachian Purple Pitcherplant
Sarracenia purpurea ssp. venosa var. venosa — Southern Purple Pitcherplant, Frog's Breeches, Hunter's Cup
Sasa japonica — Arrow Bamboo
Satureja ashei — Ashe's Savory, Ashe's Calamint, Ohoopee Dunes Wild Basil
Satureja coccinea — Scarlet Wild Basil, Scarlet Calamint, Red Mint Shrub, Red Basil
Satureja rigida — Florida Pennyroyal, Wild Pennyroyal
Schedonorus phoenix — Tall Fescue, Alta Fescue
Schinus terebinthifolia var. raddianus — Brazilian Peppertree, Brazilian-pepper, Christmasberry Tree
Schinus terebinthifolia var. rhoifolius — Brazilian Peppertree, Brazilian-pepper, Christmasberry Tree
Schinus terebinthifolius — Brazilian Peppertree, Brazilian-pepper, Christmasberry Tree
Schisandra coccinea — Bay Star-vine, Climbing-magnolia, Magnolia-vine
Schizachyrium scoparium ssp. scoparium — Common Little Bluestem
Schizandra coccinea — Bay Star-vine, Climbing-magnolia, Magnolia-vine
Schmaltzia crenata — Fragrant Sumac, Squawbush
Schoenolirion texanum — Texas Sunnybell
Schoenoplectus mucronatus — Roughseed Bulrush, Bog Bulrush, Ricefield Bulrush
Schoenoplectus robustus — Saltmarsh Bulrush
Schrankia microphylla var. floridana — Florida Sensitive-briar, Powderpuff Mimosa
Schwalbea americana var. americana — American Chaffseed
Schwalbea americana var. australis — American Chaffseed
Schwalbea australis — American Chaffseed
Scilla non-scripta — English Bluebell
Scilla nonscripta — English Bluebell
Scirpus atrovirens var. atrovirens — Black Bulrush, Dark-green Bulrush
Scirpus atrovirens var. georgianus — Georgia Bulrush
Scirpus caespitosus — Deerhair Bulrush, Deergrass, Tufted Bulrush
Scirpus californicus — Giant Bulrush, Southern Bulrush, Tule, California Bulrush
Scirpus carinatus — Keeled Bulrush
Scirpus cespitosus — Deerhair Bulrush, Deergrass, Tufted Bulrush
Scirpus cubensis — Cuban-bulrush
Scirpus eriophorum — Woolgrass Bulrush, Marsh Bulrush, Woolly Bulrush
Scirpus mucronatus — Roughseed Bulrush, Bog Bulrush, Ricefield Bulrush
Scirpus pungens var. pungens — Common Threesquare, Chairmaker's Rush, Swordgrass
Scirpus sylvaticus — Woodland Bulrush
Scirpus tabernaemontani — Softstem Bulrush, Great Bulrush
Scleria elliottii — Broad-leaved Hairy Nutrush, Elliott's Nutrush
Scutellaria altamaha ssp. australis — Hoary Skullcap, Downy Skullcap
Scutellaria altamaha var. australis — Hoary Skullcap, Downy Skullcap
Scutellaria ambigua — Shale-barren Skullcap, Glade Skullcap, Leonard's Skullcap
Scutellaria arguta — Heartleaf Skullcap
Scutellaria cuthbertii — Heartleaf Skullcap
Scutellaria integrifolia var. hispida — Hyssop Skullcap, Narrowleaf Skullcap
Scutellaria integrifolia var. multiglandulosa — Small's Skullcap
Scutellaria ovalifolia — Kentucky Skullcap, Hairy Skullcap
Scutellaria ovalifolia — Hairy Skullcap, Elliptic-leaved Skullcap
Scutellaria ovalifolia ssp. hirsuta — Kentucky Skullcap, Hairy Skullcap
Scutellaria ovalifolia ssp. mollis — Hairy Skullcap, Elliptic-leaved Skullcap
Scutellaria ovata ssp. calcarea — Heartleaf Skullcap
Scutellaria ovata ssp. cuthbertii — Heartleaf Skullcap
Scutellaria ovata ssp. mexicana — Heartleaf Skullcap
Scutellaria ovata ssp. ovata var. ovata — Heartleaf Skullcap
Scutellaria ovata ssp. pseudoarguta — Heartleaf Skullcap
Scutellaria ovata ssp. rugosa var. rugosa — Heartleaf Skullcap
Scutellaria ovata ssp. venosa — Heartleaf Skullcap
Scutellaria ovata ssp. versicolor — Heartleaf Skullcap
Scutellaria ovata ssp. virginiana — Heartleaf Skullcap
Scutellaria ovata var. calcarea — Heartleaf Skullcap
Scutellaria ovata var. versicolor — Heartleaf Skullcap
Scutellaria parvula var. leonardii — Shale-barren Skullcap, Glade Skullcap, Leonard's Skullcap
Scutellaria punctata — Hoary Skullcap, Downy Skullcap
Scutellaria serrata var. montana — Large-flowered Skullcap
Scutellaria serrata var. serrata — Showy Skullcap, Serrate Skullcap
Sebastiana ligustrina — Sebastian-bush
Sebastiania fruticosa — Sebastian-bush
Sedum rosea var. roanense — Roseroot, Goldenroot, King's Crown
Sedum vigilimontis — Widow's Cross, Glade Stonecrop, Rock Moss, Lime Stonecrop
Selaginella apoda var. apoda — Meadow Spikemoss
Selaginella apoda var. ludoviciana — Louisiana Spikemoss, Gulf Spikemoss
Senecio alabamensis — Woolly Ragwort, Woolly Groundsel, Woolly Goldenwort
Senecio anonymus — Small's Ragwort, Squaw-weed, Appalachian Ragwort
Senecio crawfordii — Bog Ragwort, Crawford's Groundsel, Crawford’s Ragwort
Senecio gracilis — Golden Ragwort, Heartleaf Ragwort, Golden Groundsel
Senecio plattensis — Appalachian Ragwort, Appalachian Groundsel
Senecio rotundus — Roundleaf Ragwort, Roundleaf Groundsel, Spatulate-leaved Ragwort, Running Ragwort
Senecio schweinitzianus — Robbins' Ragwort, New England Ragwort, New England Groundsel, Schweinitz's Ragwort
Senecio suaveolens — Sweet-scented Indian-plantain, Sweet Indian-plantain, false Indian plantain
Sericocarpus bifoliatus — Twisted-leaf Whitetop Aster, Dixie Whitetop Aster
Serinia oppositifolia — Opposite-leaf Dwarf-dandelion
Sesban exaltatus — Bigpod Sesbania, Coffee-weed, Indigo-weed, Hemp Sesbania
Sesbania macrocarpa — Bigpod Sesbania, Coffee-weed, Indigo-weed, Hemp Sesbania
Setaria faberii — Nodding Foxtail Grass, Giant Foxtail-grass, Chinese Foxtail
Setaria geminata var. geminata — Alligator Grass, Paspalidium, Kissimmee Grass
Setaria geminata var. paludivaga — Alligator Grass, Paspalidium, Kissimmee Grass
Setaria lutescens — Yellow Foxtail
Setaria pumila ssp. pallidifusca — Yellow Foxtail
Setaria pumila ssp. pumila — Yellow Foxtail
Setaria verticillata var. verticillata — Hooked Bristlegrass
Setiscapella cleistogama — Slender Bladderwort, Zigzag Bladderwort
Setiscapella subulata — Slender Bladderwort, Zigzag Bladderwort
Seutera angustifolia — Swallow-wort, Sand-vine, Gulf Coast Swallow-wort, Marsh Cynanchum
Seymeria macrophylla — Mullein Foxglove
Sherwoodia galacifolia — Oconee Bells, Southern Shortia
Sherwoodia galacifolia — Northern Shortia, Northern Oconee Bells
Sibbaldia retusa — Wineleaf Cinqefoil, Mountain Cinqefoil, Three-toothed Cinqefoil, Mountain White Potentilla
Sibbaldia tridentata — Wineleaf Cinqefoil, Mountain Cinqefoil, Three-toothed Cinqefoil, Mountain White Potentilla
Sida inflexa — Coastal Plain Sida, Elliott's Fanpetals
Sideroxylon lanuginosum ssp. albicans — Eastern Gum Bumelia, Eastern Gum Bully
Sideroxylon lanuginosum ssp. oblongifolium — Eastern Gum Bumelia, Eastern Gum Bully
Sieversia radiata — Mountain Avens, Appalachian Avens, Spreading Avens, Cliff Avens
Silene alba — Snowy Campion
Silene baldwinii — Eastern Fringed Campion, Eastern Fringed Catchfly
Silene caroliniana ssp. caroliniana var. caroliniana — South Carolina Wild-pink, Rock Catchfly, Carolina Pink
Silene caroliniana ssp. caroliniana var. pensylvanica — Northern Wild-pink, Sticky Catchfly, Pennsylvania Catchfly
Silene catesbaei — Eastern Fringed Campion, Eastern Fringed Catchfly
Silene flos-cuculi — Ragged Robin
Silene pensylvanica — Northern Wild-pink, Sticky Catchfly, Pennsylvania Catchfly
Silphium asteriscus var. angustatum — Starry Rosinweed
Silphium asteriscus var. dentatum — Starry Rosinweed
Silphium asteriscus var. simpsonii — Simpson's rosinweed
Silphium compositum — Carolina Rosinweed, Compassplant, Rhubarb-leaved Rosinweed
Silphium compositum — Ragged Rosinweed, Kidneyleaf Rosinweed
Silphium dentatum var. gatesii — Starry Rosinweed
Silphium elliottii — Starry Rosinweed
Silphium glabrum — Whorled Rosinweed
Silphium gracile — Simpson's rosinweed
Silphium incisum — Starry Rosinweed
Silphium integrifolium var. deamii — Prairie Rosinweed
Silphium integrifolium var. laeve — Gattinger's Rosinweed
Silphium laciniatum var. robinsonii — Compassplant
Silphium nodosum — Starry Rosinweed
Silphium nodum — Starry Rosinweed
Silphium orae — Carolina Rosinweed, Compassplant, Rhubarb-leaved Rosinweed
Silphium rumicifolium — Prairie-dock, Broadleaf Prairie-dock
Silphium scaberrimum — Starry Rosinweed
Silphium terebinthinaceum var. luciae-brauniae — Prairie-dock, Broadleaf Prairie-dock
Silphium terebinthinaceum var. lucy-brauniae — Prairie-dock, Broadleaf Prairie-dock
Silphium terebinthinaceum var. lucybrauniae — Prairie-dock, Broadleaf Prairie-dock
Silphium terebinthinaceum var. pinnatifidum — Tansy Rosinweed, Cutleaf Prairie-dock
Sisymbrium nasturtium-aquaticum — Watercress
Sisymbrium officinale var. leiocarpum — Hedge Mustard
Sisyrinchium brownei — Annual Blue-eyed-grass, Lawn Blue-eyed-grass, Fairy Stars
Sisyrinchium fibrosum — Nash's Blue-eyed-grass
Sisyrinchium graminoides — Narrowleaf Blue-eyed-grass, Stout Blue-eyed-grass
Sisyrinchium incrustatum — Bristly Blue-eyed-grass, Coastal Plain Blue-eyed-grass
Sisyrinchium scabrellum — Pale Blue-eyed-grass, White Blue-eyed-grass
Sitilias caroliniana — Carolina False-dandelion, Carolina Desert-chicory
Sium cicutaefolium — Hemlock Water-parsnip
Sium floridanum — Hemlock Water-parsnip
Smilacina stellata — Starry Solomon's Plume, Starflower, Starry Solomon's Seal
Smilax glauca var. glauca — Whiteleaf Greenbrier, Wild Sarsaparilla, Sawbrier
Smilax glauca var. leurophylla — Whiteleaf Greenbrier, Wild Sarsaparilla, Sawbrier
Smilax herbacea var. lasioneura — Midwestern Carrionflower
Smilax lanceolata — Jackson-brier, Unarmed Catbrier, Sweet-scented Smilax
Smilax lasioneuron — Midwestern Carrionflower
Smilax pseudo-china — Coastal Carrionflower, Bamboo-vine
Smilax tamnoides var. hispida — Bristly Greenbrier, Hellfetter, Chinaroot, Chaneyroot
Snakeberry — Indian Strawberry, Mock Strawberry
Solanum capsicastrum — Jerusalem-cherry
Solanum nigrum ssp. nigrum — European Black Nightshade
Solanum physalifolium var. nitidibaccum — Hairy Nightshade, Viscid Nightshade
Solanum pseudo-capsicum — Jerusalem-cherry
Solanum ptychanthum — Eastern Black Nightshade
Solanum sarachoides — Hairy Nightshade, Viscid Nightshade
Solidago altissima ssp. altissima — Tall Goldenrod, Field Goldenrod, Common Goldenrod
Solidago altissima ssp. altissima — Southern Tall Goldenrod
Solidago arguta ssp. arguta — Forest Goldenrod, Sharp-leaved Goldenrod, Cutleaf Goldenrod
Solidago arguta ssp. arguta var. arguta — Forest Goldenrod, Sharp-leaved Goldenrod, Cutleaf Goldenrod
Solidago arguta ssp. caroliniana var. boottii — Boott's Goldenrod, Cutleaf Goldenrod
Solidago arguta ssp. caroliniana var. caroliniana — Vasey's Goldenrod, Atlantic Goldenrod
Solidago aspera — Wrinkleleaf Goldenrod
Solidago boottii var. caroliniana — Vasey's Goldenrod, Atlantic Goldenrod
Solidago caesia var. caesia — Bluestem Goldenrod, Axillary Goldenrod, Wreath Goldenrod, Bridal-wreath Goldenrod
Solidago caesia var. curtisii — Curtis's Goldenrod
Solidago canadensis — Tall Goldenrod, Field Goldenrod, Common Goldenrod
Solidago canadensis — Harger's Common Goldenrod, Harger's Canada Goldenrod
Solidago canadensis — Canada Goldenrod
Solidago canadensis — Riverbank Goldenrod, Rock Goldenrod
Solidago canadensis — Southern Tall Goldenrod
Solidago canadensis var. rupestris — Riverbank Goldenrod, Rock Goldenrod
Solidago canadensis var. scabra — Tall Goldenrod, Field Goldenrod, Common Goldenrod
Solidago canadensis var. scabra — Southern Tall Goldenrod
Solidago celtidifolia — Hackberry-leaf Goldenrod
Solidago conferta — Showy Goldenrod, Noble Goldenrod
Solidago curtisii var. flaccidifolia — Appalachian Goldenrod, Mountain Goldenrod
Solidago curtisii var. pubens — Curtis's Goldenrod
Solidago glaberrima — Eastern Missouri Goldenrod
Solidago harperi — Showy Goldenrod, Noble Goldenrod
Solidago harperi — Downy Ragged Goldenrod, Downy Goldenrod
Solidago hirsutissima — Tall Goldenrod, Field Goldenrod, Common Goldenrod
Solidago hirsutissima — Southern Tall Goldenrod
Solidago hispida — Hairy Goldenrod
Solidago juncea var. juncea — Early Goldenrod
Solidago juncea var. neobohemica — Early Goldenrod
Solidago leptocephala — Narrowhead Goldentop, Mississippi Valley Flat-topped Goldenrod
Solidago ludoviciana — Atlantic Goldenrod
Solidago milleriana — Downy Ragged Goldenrod, Downy Goldenrod
Solidago missouriensis — Eastern Missouri Goldenrod
Solidago nemoralis ssp. nemoralis — Eastern Gray Goldenrod
Solidago odora ssp. chapmanii — Chapman's Goldenrod
Solidago odora ssp. odora — Licorice Goldenrod, Sweet Goldenrod, Anise Goldenrod, Anise-scented Goldenrod
Solidago patula ssp. patula — Northern Roughleaf Goldenrod
Solidago patula ssp. strictula — Southern Roughleaf Goldenrod
Solidago perlonga — Pine Barren Bog Goldenrod, Northern Wand Goldenrod
Solidago petiolata — Southern Wand Goldenrod
Solidago pubens — Curtis's Goldenrod
Solidago puberula ssp. puberula — Downy Goldenrod
Solidago puberula ssp. pulverulenta — Dusty Downy Goldenrod
Solidago purshii — Narrowleaf Bog Goldenrod
Solidago radula var. stenolepis — Rough Goldenrod
Solidago rigida ssp. glabrata — Southeastern Stiff Goldenrod, Southeastern Bold Goldenrod
Solidago rigida ssp. rigida — Midwestern Stiff Goldenrod, Hard-leaved Goldenrod, Midwestern Bold Goldenrod, Stiff-leaved Goldenrod
Solidago rigida var. glabrata — Southeastern Stiff Goldenrod, Southeastern Bold Goldenrod
Solidago rigida var. grandiflorus — Midwestern Stiff Goldenrod, Hard-leaved Goldenrod, Midwestern Bold Goldenrod, Stiff-leaved Goldenrod
Solidago rigida var. rigida — Midwestern Stiff Goldenrod, Hard-leaved Goldenrod, Midwestern Bold Goldenrod, Stiff-leaved Goldenrod
Solidago rugosa — Wrinkleleaf Goldenrod, Roughstem Goldenrod
Solidago rugosa — Wrinkleleaf Goldenrod
Solidago rugosa — Cronquist's Wrinkleleaf Goldenrod, Cronquist's Goldenrod
Solidago rugosa — Peat-loving Goldenrod
Solidago rugosa — Hackberry-leaf Goldenrod
Solidago rugosa ssp. aspera var. aspera — Wrinkleleaf Goldenrod
Solidago rugosa ssp. aspera var. celtidifolia — Hackberry-leaf Goldenrod
Solidago rugosa ssp. aspera var. cronquistiana — Cronquist's Wrinkleleaf Goldenrod, Cronquist's Goldenrod
Solidago rugosa ssp. rugosa — Wrinkleleaf Goldenrod, Roughstem Goldenrod
Solidago rugosa ssp. rugosa var. villosa — Wrinkleleaf Goldenrod, Roughstem Goldenrod
Solidago rugosa var. sphagnophila — Peat-loving Goldenrod
Solidago rugosa var. villosa — Wrinkleleaf Goldenrod, Roughstem Goldenrod
Solidago sempervirens ssp. mexicana — Southern Seaside Goldenrod
Solidago sempervirens ssp. sempervirens — Northern Seaside Goldenrod
Solidago serotina — Smooth Goldenrod, Late Goldenrod, Giant Goldenrod
Solidago speciosa ssp. speciosa var. rigidiuscula — Narrowleaf Showy Goldenrod, Slender Showy Goldenrod, Stiff-leaved Showy Goldenrod, Prairie Goldenrod
Solidago speciosa ssp. speciosa var. speciosa — Showy Goldenrod, Noble Goldenrod
Solidago speciosa var. erecta — Slender Goldenrod, Erect Goldenrod
Solidago spithamea — Blue Ridge Goldenrod
Solidago stricta ssp. gracillima — Pine Barren Bog Goldenrod, Northern Wand Goldenrod
Solidago stricta ssp. gracillima — Southern Bog Goldenrod, Graceful Goldenrod
Solidago stricta ssp. gracillima — Piedmont Wand Goldenrod
Solidago stricta ssp. stricta — Southern Wand Goldenrod
Solidago strigosa — Boott's Goldenrod, Cutleaf Goldenrod
Solidago tenuifolia — Carolina Goldentop, Slender Flattop Goldenrod
Solidago ulmifolia var. palmeri — Elmleaf Goldenrod
Solidago uniligulata — Northern Bog Goldenrod, Swamp Goldenrod
Solidago yadkinensis — Vasey's Goldenrod, Atlantic Goldenrod
Sonchus uliginosus — Field Sowthistle, Perennial Sowthistle
Sophia pinnata — Southeastern Tansy-mustard
Sophora japonica — Japanese Pagoda Tree
Sorengia tenera — Southeastern Panicgrass
Sorghum bicolor var. bicolor — Sorghum, Milo, Broomcorn, Sorgo
Sorghum vulgare var. vulgare — Sorghum, Milo, Broomcorn, Sorgo
Sorgum halepense — Johnsongrass
Sorgum vulgare — Sorghum, Milo, Broomcorn, Sorgo
Spartina alterniflora var. alterniflora — Saltmarsh Cordgrass, Smooth Cordgrass
Spartina alterniflora var. glabra — Saltmarsh Cordgrass, Smooth Cordgrass
Spartina alterniflora var. pilosa — Saltmarsh Cordgrass, Smooth Cordgrass
Spartina patens var. monogyna — Small Saltmeadow Cordgrass, Salt Hay, Marsh-hay Cordgrass
Spartina patens var. patens — Small Saltmeadow Cordgrass, Salt Hay, Marsh-hay Cordgrass
Spathyema foetida — Skunk Cabbage
Sphenopholis obtusata var. major — Slender Wedgegrass
Sphenopholis obtusata var. obtusata — Prairie Wedgegrass
Spigelia marylandica — Indian-pink, Woodland Pinkroot, Wormgrass
Spilanthes americana — Spilanthes, Creeping Spotflower
Spiraea betulifolia var. corymbosa — Dwarf Spiraea, Rock Spiraea, Shinyleaf Meadowsweet
Spiraea septentrionalis — Broadleaf Meadowsweet
Spiraea tomentosa var. rosea — Hardhack, Steeplebush, Rosy Meadowsweet
Spiraea tomentosa var. tomentosa — Hardhack, Steeplebush, Rosy Meadowsweet
Spiranthes ×laciniata — Lace-lip Ladies'-tresses, Lace-lip Spiral Orchid
Spiranthes brevilabris var. brevilabris — Short-lipped Ladies'-tresses, Texas Ladies'-tresses
Spiranthes brevilabris var. floridana — Florida Ladies'-tresses
Spiranthes cernua var. ochroleuca — Yellow Ladies'-tresses, Yellow Nodding Ladies'-tresses
Spiranthes gracilis — Southern Slender Ladies'-tresses
Spiranthes gracilis — Northern Slender Ladies'-tresses
Spiranthes gracilis var. brevilabris — Short-lipped Ladies'-tresses, Texas Ladies'-tresses
Spiranthes lacera — Northern Slender Ladies'-tresses
Spiranthes lacera var. eatonii — Eaton's Ladies'-tresses
Spiranthes parksii — Nodding Ladies'-tresses
Spirodela punctata — Dotted Duckmeat
splenium ×heteroresiliens — Marl Spleenwort, Carolina Spleenwort, Wagner's Spleenwort, Morzenti's Spleenwort
Sporobolus alterniflorus — Saltmarsh Cordgrass, Smooth Cordgrass
Sporobolus asper — Tall Dropseed
Sporobolus asper var. asper — Tall Dropseed
Sporobolus berteroanus — West Indian Dropseed
Sporobolus berteroanus — Smut-grass, Blackseed
Sporobolus compositus var. clandestinus — Rough Dropseed
Sporobolus cynosuroides — Giant Cordgrass, Big Cordgrass
Sporobolus gracilis — Sandhills Dropseed, Pineywoods Dropseed
Sporobolus pumilus — Small Saltmeadow Cordgrass, Salt Hay, Marsh-hay Cordgrass
Sporobolus pyramidalis — West Indian Dropseed
Stachys ambigua — Roughleaf Hedgenettle, Rough Hedgenettle
Stachys hyssopifolia var. lythroides — Roughleaf Hedgenettle, Rough Hedgenettle
Stachys lythroides — Roughleaf Hedgenettle, Rough Hedgenettle
Stachys olympica — Lamb's-ear, Woolly Hedge-nettle
Stachys palustris var. palustris — marsh hedgenettle
Stachys palustris var. pilosa — Woundwort
Stachys riddellii — Heart-leaved Hedgenettle
Stachys riddellii — Nuttall’s Hedgenettle
Stachys salvioides — Heart-leaved Hedgenettle
Stachys salvioides — Nuttall’s Hedgenettle
Stachys tenuifolia var. hispida — Hispid Hedgenettle
Stachys tenuifolia var. latidens — Broadtooth Hedgenettle
Stachys tenuifolia var. perlonga — Smooth Hedgenettle
Stachys tenuifolia var. tenuifolia — Smooth Hedgenettle
Stachys tenuifolia var. tenuifolia — Hispid Hedgenettle
Steironema heterophyllum — Lanceleaf Loosestrife
Steironema intermedium — Southern Loosestrife, Appalachian Loosestrife
Steironema quadriflora — Prairie Loosestrife, Four-flower Loosestrife, Smooth Loosestrife
Stellaria pubera var. pubera — Star Chickweed, Giant Chickweed, Great Chickweed, Common Starwort
Stellaria pubera var. silvatica — Tennessee Starwort
Stellaria silvatica — Tennessee Starwort
Stenanthium gramineum var. micranthum — Featherbells, Eastern Featherbells
Stenanthium robustum — Bog Featherbells
Stenophyllus barbatus — Old World Hairsedge, Water-grass
Stenophyllus capillaris — Densetuft Hairsedge, Common Hairsedge
Stenophyllus ciliatifolius — Savannah Hairsedge, Capillary Hairsedge
Stenophyllus coarctatus — Elliott's Hairsedge
Stenophyllus stenophyllus — Sandy-field Hairsedge
Stenophyllus warei — Ware's Hairsedge
Stewartia malachodendron — Silky Camellia, Virginia Stewartia, Stewartia
Stillingia spathulata — Queen's-delight
Stillingia sylvatica var. sylvatica — Queen's-delight
Stillingia tenuis — Corkwood, Water Toothleaf
Stipa trichotoma — Serrated Tussockgrass, Nassella Tussock, Yass River Tussock
Stipulicida filiformis — Coastal Plain Wireplant, Pineland Scaly-pink
Stomoisia cornuta — Horned Bladderwort
Stomoisia juncea — Southern Bladderwort, Slender Horned Bladderwort
Stomoisia virgatula — Southern Bladderwort, Slender Horned Bladderwort
Streptopus amplexifolius var. americanus — Clasping Twisted-stalk, White Mandarin, Pagoda-bells
Streptopus lanceolatus — Rosy Twisted-stalk, Eastern Rose Mandarin, Eastern Twisted-stalk
Streptopus lanceolatus var. roseus — Rosy Twisted-stalk, Eastern Rose Mandarin, Eastern Twisted-stalk
Strobus strobus — Eastern White Pine
Strophocaulos arvensis — Field Bindweed, Creeping Jenny, Possession-vine, Cornbind
Strophostyles helvula — Annual Sand Bean, Beach Pea, Trailing Wild Bean, Trailing Fuzzy-Bean
Stuartia malachodendron — Silky Camellia, Virginia Stewartia, Stewartia
Stylisma patens var. angustifolia — Narrowleaf Dawnflower
Stylisma patens var. patens — Sandhill Dawnflower, Sandhill Morning Glory, Coastal Plain Dawnflower, Common Dawnflower
Stylisma pickeringii — Pickering's Dawnflower
Stylisma trichosanthes — Sandhill Dawnflower, Sandhill Morning Glory, Coastal Plain Dawnflower, Common Dawnflower
Stylodon carneum — Carolina Vervain, Carolina False Vervain
Stylodon carolinensis — Carolina Vervain, Carolina False Vervain
Stylosanthes riparia — Pencil-flower, Sidebeak Pencil-flower
Stylypus vernus — Spring Avens, Heartleaf Avens
Styrax americana var. americana — American Storax, American Snowbell
Styrax americana var. pulverulenta — American Storax, American Snowbell
Styrax pulverulenta — Downy American Snowbell
Svida alternifolia — Alternate-leaf Dogwood, Pagoda Dogwood, Pagoda Cornel
Svida amomum — Silky Dogwood, Bush Dogwood, Silky Cornel
Svida asperifolia — Midwestern Roughleaf Dogwood
Svida femina — Northern Swamp Dogwood, Gray Dogwood
Svida microcarpa — Eastern Roughleaf Dogwood
Svida priceae — Midwestern Roughleaf Dogwood
Svida stricta — Southern Swamp Dogwood
Swida amomum var. amomum — Silky Dogwood, Bush Dogwood, Silky Cornel
Swida stolonifera — Red Osier Dogwood, Bailey's Dogwood
Swida stricta — Southern Swamp Dogwood
Symphoricarpos rivularis — Pacific Snowberry
Symphoricarpos symphoricarpos — Coralberry, Indian Currant, Buckbrush
Symphyotrichum carolinianum — Climbing Aster
Symphyotrichum dumosum — Bushy Aster, Long-stalked Aster, Rice Button Aster
Symphyotrichum lateriflorum var. angustifolium — Calico Aster, Starved Aster, Goblet Aster
Symphyotrichum lateriflorum var. horizontale — Calico Aster, Starved Aster, Goblet Aster
Symphyotrichum ontarione var. ontarione — Bottomland Aster
Symphyotrichum praealtum — Willowleaf Aster, Veiny-lined Aster, Tall Aster, Willow Aster
Symphyotrichum sagittifolium — White Arrowleaf Aster, Arrowleaf Blue Wood Aster
Symphyotrichum subulatum var. ligulatum — Midwestern Saltmarsh Aster, Annual Water Aster, Yard Aster
Symphyotrichum subulatum var. subulatum — Eastern Saltmarsh Aster, Annual Saltmarsh Aster
Symphyotrichum tenuifolium var. tenuifolium — Perennial Saltmarsh Aster
Syndesmon thalictroides — Windflower, Rue-anemone
Synosma suaveolens — Sweet-scented Indian-plantain, Sweet Indian-plantain, false Indian plantain
Syntherisma filiformis — Slender Crabgrass
Syntherisma ischaemum — Smooth Crabgrass
Syntherisma sanguinalis — Hairy Crabgrass, Northern Crabgrass
Talinum mengesii — Menges' Fameflower, Large-flowered Fameflower, Menges' Rock-pink, Large-flowered Rock-pink
Talinum mengesii — Piedmont Rock-pink, Piedmont Fameflower
Talinum paniculatum var. paniculatum — Panicled Fameflower, Jewels-of-Opar, Pink Baby’s-breath
Tamala pubescens — Swamp Redbay, Swamp Bay
Tamarix pentandra — Chinese Tamarisk
Tarenaya hassleriana — Cleome, Spiderflower, Pinkqueen
Taxodium distichum var. distichum — Bald Cypress
Taxodium distichum var. imbricarium — Pond Cypress
Teucrium canadense var. virginicum — American Germander, Wood Sage, Common Germander
Teucrium littorale — American Germander, Wood Sage, Common Germander
Thalesia uniflora — One-flowered Cancer-root, One-flowered Broomrape, Ghostpipe
Thalictrum caulophylloides — Appalachian Meadowrue, Maid-of-the-mist
Thalictrum pubescens var. hepaticum — Appalachian Tall Meadowrue
Thalictrum pubescens var. pubescens — Common Tall Meadowrue, King-of-the-meadow, Late Meadowrue
Thalictrum steeleanum — Appalachian Meadowrue, Maid-of-the-mist
Thalictrum subrotundum — Small-leaved Meadowrue, Small-flowered Meadowrue
Thaspium barbinode var. angustifolium — Creamy Meadow-parsnip, Chapman's Meadow-parsnip
Thaspium barbinode var. barbinode — Hairy-jointed Meadow-parsnip
Thaspium barbinode var. chapmanii — Creamy Meadow-parsnip, Chapman's Meadow-parsnip
Thaspium trifoliatum — Purple Meadow-parsnip, Woodland Parsnip
Thaspium trifoliatum — Yellow Meadow-parsnip, Woodland Parsnip
Thea sinensis — Tea
Thelypteris normalis — Kunth's Maiden-fern, Southern Shield-fern, Southern Woodfern
Thelypteris ovata var. harperi — Ovate Maiden Fern, ovate marsh fern
Thelypteris quadrangularis var. versicolor — Hairy Maiden Fern
Thelypteris reducta — Downy Maiden-fern, Soft Fern, Downy Shield-fern
Thelypteris thelypteris — Marsh Fern
Thelypteris torresiana — Mariana Maiden-fern, Swordfern, False Maiden-fern
Thelypteris versicolor — Hairy Maiden Fern
Thermopsis caroliniana — Aaron's Rod, Blue Ridge Golden-banner, Hairy Bush Pea
Thermopsis hugeri — Appalachian Golden-banner, Allegheny Mountain Golden-banner, Bush Pea
Thermopsis mollis var. fraxinifolia — Ashleaf Golden-banner
Thermopsis mollis var. mollis — Appalachian Golden-banner, Allegheny Mountain Golden-banner, Bush Pea
Therophon aconitifolium — Brook-saxifrage, Eastern Boykinia, Allegheny Brookfoam, Aconite-saxifrage
Thuja orientalis — Oriental Arborvitae, Tree-of-life
Thyella tamnifolia — Common Jacquemontia, Hairy Clustervine, Tie Vine, Smallflower Morning Glory
Thysanella fimbriata — Sandhill Jointweed, Fringed Thysanella
Tiaridium indicum — Indian Heliotrope, Turnsole
Tilia americana var. neglecta — American Basswood, Northern Basswood
Tilia australis — Mountain Basswood, White Basswood
Tilia caroliniana ssp. caroliniana — Carolina Basswood, Southern Basswood
Tilia caroliniana ssp. floridana — Carolina Basswood, Southern Basswood
Tilia caroliniana ssp. heterophylla — Mountain Basswood, White Basswood
Tilia cordata ssp. cordata — Little-leaf Linden, Small-leaved Linden, Small-leaved Lime
Tilia eburnea — Mountain Basswood, White Basswood
Tilia floridana — Carolina Basswood, Southern Basswood
Tilia georgiana — Carolina Basswood, Southern Basswood
Tilia glabra — American Basswood, Northern Basswood
Tilia lasioclada — Mountain Basswood, White Basswood
Tilia littoralis — Carolina Basswood, Southern Basswood
Tilia michauxii — Mountain Basswood, White Basswood
Tilia monticola — Mountain Basswood, White Basswood
Tilia neglecta — American Basswood, Northern Basswood
Tilia truncata — American Basswood, Northern Basswood
Tipularia unifolia — Cranefly Orchid
Tithymalopsis apocynifolia — Limestone Flowering Spurge?
Tithymalopsis corollata — Eastern Flowering Spurge
Tithymalopsis curtisii — White Sandhills Spurge, Curtis's Spurge
Tithymalopsis discoidalis — Summer Spurge
Tithymalopsis eriogonoides — White Sandhills Spurge, Curtis's Spurge
Tithymalopsis exserta — Maroon Sandhills Spurge, Coastal Sand Spurge, Purple Sandhill-spurge
Tithymalopsis gracilis — Maroon Sandhills Spurge, Coastal Sand Spurge, Purple Sandhill-spurge
Tithymalopsis ipecacuanhae — Carolina Ipecac, Wild Ipecac, American Ipecac
Tithymalopsis mercurialina — Cumberland Spurge, Mercury Spurge
Tithymalopsis paniculata — False Flowering Spurge, Southeastern Flowering Spurge, Southern Flowering Spurge
Tithymalopsis zinniiflora — False Flowering Spurge, Southeastern Flowering Spurge, Southern Flowering Spurge
Tithymalus cyparissias — Cypress Spurge, Graveyard Spurge
Tium michauxii — Sandhill Milkvetch, Michaux's Milkvetch
Tofieldia glutinosa — Sticky Bog Asphodel, Northern Bog Asphodel, False Asphodel
Tofieldia racemosa — Coastal Bog Asphodel, Southern Bog Asphodel, Coastal False Asphodel, Savanna Asphodel
Tofieldia tenuifolia — Rush-featherling, Pleea
Torilis arvensis ssp. recta — Spreading Hedge-parsley, Spreading Bur-parsley, Field Hedge-parsley
Tortipes amplexifolius — Clasping Twisted-stalk, White Mandarin, Pagoda-bells
Toxicodendron negundo — Midwestern Poison Ivy
Toxicodendron quercifolium — Poison Oak, Southeastern Poison Oak
Toxicodendron radicans — Eastern Poison Ivy
Toxicodendron radicans var. rydbergii — Wesern Poison Ivy
Toxicodendron toxicodendron — Poison Oak, Southeastern Poison Oak
Toxylon pomiferum — Osage-orange, Hedge-apple, Bow-wood
Tracaulon arifolium — Halberd-leaf Tearthumb
Tracaulon sagittatum — Arrowleaf Tearthumb, Arrowvine, Scratch-grass
Tracyanthus angustifolius — Crow-poison, Savanna Camass, Osceola-plume
Tradescantia brevicaulis — Virginia Spiderwort
Tradescantia foliosa — Smooth Spiderwort, Ohio Spiderwort
Tradescantia incarnata — Smooth Spiderwort, Ohio Spiderwort
Tradescantia montana — Zigzag Spiderwort, Wide-leaved Spiderwort
Tradescantia pilosa — Zigzag Spiderwort, Wide-leaved Spiderwort
Tradescantia reflexa — Smooth Spiderwort, Ohio Spiderwort
Tradescantia subaspera var. montana — Zigzag Spiderwort, Wide-leaved Spiderwort
Tragia linearifolia — Wavyleaf Noseburn, Southeastern Noseburn, Sandhill Noseburn
Tragia urticaefolia — Nettleleaf Noseburn, Tragia
Tragiola pilosa — Shaggy Hedge-hyssop, Pilose Hedge-hyssop
Triadenum longifolium — Southern Marsh St. Johnswort
Triadenum petiolatum — Walter’s Marsh St. Johnswort, Greater Marsh St. Johnswort
Tricholaena rosea — Rose Natalgrass, Creeping Molasses-grass
Trichophorum caespitosum — Deerhair Bulrush, Deergrass, Tufted Bulrush
Trichostema dichotomum var. dichotomum — Common Blue Curls, Forked Blue Curls
Trichostema dichotomum var. lineare — Narrowleaf Blue Curls
Trichostema lineare — Narrowleaf Blue Curls
Triclisperma paucifolia — Gaywings, Fringed Polygala, Flowering Wintergreen, Bird-on-the-wing
Trifolium procumbens — Hop Clover, Low Hop Clover, Field Clover
Trifolium saxicola — Carolina Clover, Wild White Clover
Trillium - "Amicalola Trillium" — Amicalola Trillium
Trillium cernuum var. macranthum — Southern Nodding Trillium
Trillium declinatum — Bent Trillium, Bent White Trillium, Bentstalk Trillium, Drooping Trillium
Trillium erectum var. album — Red Trillium, Purple Trillium, Stinking Willie, Stinking Benjamin
Trillium erectum var. declinatum — Bent Trillium, Bent White Trillium, Bentstalk Trillium, Drooping Trillium
Trillium freemanii — Lookout Mountain Trillium, Ruby Falls Trillium, Freeman's Trillium
Trillium gleasoni — Bent Trillium, Bent White Trillium, Bentstalk Trillium, Drooping Trillium
Trillium hugeri — Little Sweet Betsy, Purple Toadshade
Trillium pusillum var. 2 — Georgia Least Trillium
Trillium pusillum var. georgianum — Georgia Least Trillium
Trillium viride var. luteum — Yellow Trillium, Yellow Toadshade, Lemon-scented Trillium, Wax Trillium
Triodanis perfoliata ssp. biflora — Southern Venus's Looking-glass, Small Venus's Looking-glass
Triodanis perfoliata ssp. perfoliata — Clasping Venus's Looking-glass
Triodanis perfoliata var. biflora — Southern Venus's Looking-glass, Small Venus's Looking-glass
Triodanis perfoliata var. perfoliata — Clasping Venus's Looking-glass
Triodia drummondii — Carolina Triodia, Carolina Fluffgrass
Triodia flava — Purpletop, Purpletop Tridens, Greasy Grass, Tall Redtop
Triodia stricta — Longspike Tridens, Longspike Fluffgrass, Spike Triodia
Trionum trionum — Flower-of-an-hour, Venice Mallow, Bladder Ketmia
Triorchos ecristatus — Spiked Medusa, Crestless Plume Orchid, Smooth-lipped Eulophia, Non-crested Eulophia
Triosteum perfoliatum var. aurantiacum — Orange-fruited Horse-gentian
Triosteum perfoliatum var. perfoliatum — Perfoliate Horse-gentian, Perfoliate Tinker's-weed, Wild Coffee, Feverwort
Triphora trianthophora ssp. trianthophora — Three Birds Orchid, Nodding Pogonia, Nodding Ettercap
Triphora trianthophoros — Three Birds Orchid, Nodding Pogonia, Nodding Ettercap
Triplasis intermedia — Purple Sandgrass
Tripleurospermum maritimum ssp. inodorum — Scentless Chamomile, False Chamomile, Mayweed
Tripleurospermum perforata — Scentless Chamomile, False Chamomile, Mayweed
Tripsacum dactyloides var. occidentale — Gama Grass, Eastern Gamagrass
Tubiflora carolinensis — Carolina Elytraria
Tulipastrum acuminatum — Cucumber Magnolia, Cucumber-tree
Tulipastrum cordatum — Piedmont Cucumber Magnolia, Yellow Cucumber-tree, Showy Cucumber Magnolia
Tumion taxifolium — Florida Torreya, Stinking-cedar
Ulmus floridana — Florida Elm
Ulmus fulva — Slippery Elm, Red Elm
Unifolium canadense — Canada Mayflower, "False Lily-of-the-valley", "Wild Lily-of-the-valley"
Uniola longifolia — Longleaf Woodoats, Longleaf Spikegrass, Upland Oats
Urechites lutea — Wild Allamanda, Hammock Viper's-tail
Urechites pinetorum — Wild Allamanda, Hammock Viper's-tail
Urtica dioica var. dioica — European Stinging Nettle, Great Nettle
Urtica gracilis — American Stinging Nettle, Slender Nettle
Urticastrum divaricatum — Canada Wood-nettle
Utricularia pumila — Longspur Creeping Bladderwort, Twoflower Bladderwort
Utricularia vulgaris ssp. macrorhiza — Greater Bladderwort, Common Bladderwort
Uvularia puberula var. nitida — Mountain Bellwort, Appalachian Bellwort, Carolina Bellwort, Coastal Bellwort
Uvularia puberula var. puberula — Mountain Bellwort, Appalachian Bellwort, Carolina Bellwort, Coastal Bellwort
Vaccinium alto-montanum — Blue Ridge Blueberry
Vaccinium ashei — Rabbiteye Blueberry, Swamp Blueberry, Rabbitberry, Smallflower Blueberry
Vaccinium australe — Southern Highbush Blueberry, Swamp Highbush Blueberry
Vaccinium brachycerum — Box Huckleberry
Vaccinium corymbosum var. atrococcum — Hairy Highbush Blueberry, Black Highbush Blueberry
Vaccinium darrowi — Darrow's Blueberry
Vaccinium erythrocarpum ssp. erythrocarpum — Bearberry, Highbush Cranberry, Mountain Cranberry
Vachellia farnesiana var. farnesiana — Common Sweet Acacia, Huisache
Vagnera australis — False Solomon's Seal, Eastern Solomon's Plume, May-plume
Vagnera racemosa — False Solomon's Seal, Eastern Solomon's Plume, May-plume
Valerianella intermedia — Navel Cornsalad
Valerianella olitoria — European Cornsalad
Valerianella patellaria — Navel Cornsalad
Valerianella radiata var. intermedia — Navel Cornsalad
Valerianella woodsiana — Beaked Cornsalad
Validallium tricoccum — Red Ramps, Rampscallions, Wild Leek
Vallisneria spiralis — American Eelgrass, Water-celery, Tapegrass, Vallisneria
Vandenboschia species 1 — Grotto-felt, Appalachian Trichomanes, Weft Fern
Veratrum intermedium — Ozark Bunchflower, Wood's False-hellebore
Veratrum latifolium — Crisped Bunchflower, Broadleaf Bunchflower, Slender Bunchflower
Veratrum viride var. viride — White-hellebore, Indian Poke, Green Hellebore, Cornhusk Lily
Verbena angustifolia — Narrowleaf Vervain
Verbena bipinnatifida — Dakota Vervain, Dakota Mock Vervain
Verbena bonariensis var. conglomerata — Purpletop Vervain, Tall Vervain
Verbena hastata var. hastata — Blue Vervain, Common Vervain, Simpler's-joy
Verbena hastata var. scabra — Blue Vervain, Common Vervain, Simpler's-joy
Verbena litoralis var. brevibracteata — Brazilian Vervain
Verbena litoralis var. brevibracteata — Purpletop Vervain, Tall Vervain
Verbena urticaefolia — White Vervain, Nettleleaf Verbena, Velvetleaf Vervain
Verbena urticifolia var. leiocarpa — White Vervain, Nettleleaf Verbena, Velvetleaf Vervain
Verbena urticifolia var. urticifolia — White Vervain, Nettleleaf Verbena, Velvetleaf Vervain
Verbesina alba — Eclipta, Pie-plant, Yerba-de-tajo, false daisy
Verbesina virginica — Southern Frostweed
Verbesina virginica — White Crownbeard, Common Frostweed, White Wingstem, Virginia Wingstem
Vernonia angustifolia — Narrowleaf Ironweed, Carolina Slender Ironweed, Carolina Sandhill Ironweed
Vernonia angustifolia — Georgia Sandhill Ironweed, Georgia Slender Ironweed
Vernonia angustifolia ssp. scaberrima — Georgia Sandhill Ironweed, Georgia Slender Ironweed
Vernonia georgiana — Georgia Ironweed
Vernonia harperi — New York Ironweed
Vernonia recurva — Georgia Sandhill Ironweed, Georgia Slender Ironweed
Vernonia scaberrima — Georgia Sandhill Ironweed, Georgia Slender Ironweed
Veronica beccabunga ssp. beccabunga — European Speedwell, European Brooklime
Veronica beccabunga var. americana — American Speedwell, Brooklime
Veronica beccabunga var. beccabunga — European Speedwell, European Brooklime
Veronica officinalis var. officinalis — Common Speedwell, Gypsyweed, Heath Speedwell
Veronica officinalis var. tournefortii — Common Speedwell, Gypsyweed, Heath Speedwell
Vesiculina purpurea — Purple Bladderwort
Viburnum densiflorum — Mapleleaf Viburnum, Maple-leaved Arrowwood, Dockmackie
Viburnum dentatum var. scabrellum — Southern Arrowwood
Viburnum nashii — Small-leaf Virburnum, Walter's Viburnum
Viburnum nudum var. angustifolium — Possumhaw Viburnum, Witherod Viburnum, Shining Viburnum
Viburnum opulus ssp. opulus — Guelder-rose Viburnum, Snowball
Viburnum opulus ssp. trilobum — Highbush-cranberry, Cranberry Tree, American Cranberry-bush
Viburnum opulus var. trilobum — Highbush-cranberry, Cranberry Tree, American Cranberry-bush
Viburnum ozarkense — Limerock Arrowwood
Viburnum plicatum var. tomentosa — Japanese Snowball Viburnum, Doublefile Viburnum
Viburnum semitomentosum — Southern Arrowwood
Viburnum semitomentosum — Carolina Arrowwood
Viburnum semitomentosum — Southern Arrowwood
Vicia cracca var. cracca — Cow Vetch, Tufted Vetch
Vicia hugeri — Carolina Vetch, Wood Vetch, Pale Vetch
Vicia sativa var. angustifolia — Narrowleaf Vetch, Garden Vetch
Vicia sativa var. sativa — Common Vetch
Vicia villosa var. villosa — Hairy Vetch, Fodder Vetch, Winter Vetch
Viguiera porteri — Confederate Daisy
Vincetoxicum gonocarpos — Eastern Anglepod
Vincetoxicum pubiflorum — Trailing Milkvine, Sandhill Spinypod
Vincetoxicum suberosum — Eastern Anglepod
Viola ×palmata — Wood Violet, Southern Three-lobed Violet
Viola ×primulifolia — Primrose-leaf Violet
Viola ×subsinuata — Monacan Violet, Blue Ridge Violet
Viola canadensis var. rugulosa — Canada Violet, Tall White Violet
Viola egglestoni — Eggleston's Violet, Nashville Violet, Cedar Glade Violet
Viola emarginata — Arrowleaf Violet, Arrowhead Violet
Viola emarginata var. 2 ["deltate"] — Deltate Violet?
Viola emarginata var. acutiloba — Arrowleaf Violet, Arrowhead Violet
Viola eriocarpon var. eriocarpon — Downy Yellow Violet, Hairy Yellow Forest Violet
Viola eriocarpon var. leiocarpon — Smooth Yellow Forest Violet, Smooth Yellow Violet
Viola esculenta — Atlantic Coast Salad Violet
Viola kitaibeliana var. rafinesquii — Johnny Jump-up, American Field Pansy, Wild Pansy
Viola lanceolata var. lanceolata — Lanceleaf Violet, Narrow-leaved Violet, White Bog Violet, Northern Water Violet
Viola lanceolata var. vittata — Strapleaf Violet, White Bog Violet, Southern Water Violet
Viola macloskeyi — Wild White Violet, White Marsh Violet
Viola missouriensis — LeConte's Violet, Sand Violet, Thinleaf Violet, Missouri Violet
Viola pallens — Wild White Violet, White Marsh Violet
Viola palmata — Wood Violet, Southern Three-lobed Violet
Viola palmata var. dilatata — Wavyleaf Violet
Viola palmata var. esculenta — Atlantic Coast Salad Violet
Viola palmata var. heterophylla — Atlantic Coast Salad Violet
Viola palmata var. pedatifida — Eggleston's Violet, Nashville Violet, Cedar Glade Violet
Viola papilionacea — Dooryard Violet, Confederate Violet, Common Blue Violet
Viola pedata var. lineariloba — Common Birdsfoot Violet
Viola pedata var. ranunculifolia — Sandhills Birdsfoot Violet
Viola pedatifida ssp. brittoniana — Northern Coastal Violet, Coast Violet, Britton's Violet
Viola pensylvanica — Smooth Yellow Forest Violet, Smooth Yellow Violet
Viola pensylvanica var. leiocarpa — Smooth Yellow Forest Violet, Smooth Yellow Violet
Viola pensylvanica var. pensylvanica — Smooth Yellow Forest Violet, Smooth Yellow Violet
Viola priceana — Dooryard Violet, Confederate Violet, Common Blue Violet
Viola primulifolia var. primulifolia — Primrose-leaf Violet
Viola pubescens var. eriocarpa — Smooth Yellow Forest Violet, Smooth Yellow Violet
Viola septemloba ssp. egglestonii — Eggleston's Violet, Nashville Violet, Cedar Glade Violet
Viola septemloba ssp. septemloba — Southern Coastal Violet, Cleft-leaved Violet
Viola sororia var. missouriensis — LeConte's Violet, Sand Violet, Thinleaf Violet, Missouri Violet
Viola subsinuata — Wavyleaf Violet
Viola subsinuata — Monacan Violet, Blue Ridge Violet
Viola subsinuata — Northern Three-lobed Violet
Viola tricolor var. tricolor — Johnny Jump-up, Pansy
Viola triloba — Wood Violet, Southern Three-lobed Violet
Viola walteri var. appalachiensis — Appalachian Violet, Henry's Violet
Viola walteri var. walteri — Walter's Violet, Prostrate Blue Violet
Viorna beadlei — Beadle's Leatherflower
Viorna crispa — Southern Leatherflower, Marsh Clematis, Swamp Leatherflower, Blue Jasmine
Viorna fremontii — Fremont's Leatherflower
Viorna glaucophylla — White-leaved Leatherflower
Viorna ochroleuca — Curlyheads
Viorna reticulata — Vase-vine, Netleaf Leatherflower
Viorna versicolor — Pale Leatherflower
Viorna viorna — Northern Leatherflower, Vase-vine
Virgulus concolor — Eastern Silvery Aster
Virgulus georgianus — Georgia Aster
Virgulus grandiflorus — Big-headed Aster, Rough Aster, Large-headed Aster, Largeflower Aster
Virgulus novae-angliae — New England Aster, Michaelmas-daisy
Virgulus oblongifolius — Eastern Aromatic Aster, Shale-barren Aster
Virgulus patens var. patens — Late Purple Aster, Common Clasping Aster, Late Blue Aster, Skydrop Aster
Virgulus patens var. phlogifolius — Appalachian Clasping Aster, Thinleaf Late Purple Aster
Virgulus sericeus — Western Silvery Aster
Virgulus walteri — Walter's Aster
Vitex agnus-castus var. caerulea — Chaste-tree
Vitex trifolia — Beach Vitex, Roundleaf Chaste-tree
Vitis aestivalis — Summer Grape
Vitis aestivalis — Silverleaf Grape
Vitis bicolor — Silverleaf Grape
Vitis cordifolia — Frost Grape, Winter Grape, Chicken Grape
Vitis labrusca × vinifera — Concord Grape
Vitis labruscana — Concord Grape
Vitis munsoniana — Munson Grape, Bullace Grape
Waldsteinia fragarioides var. fragarioides — Northern Barren Strawberry
Waldsteinia fragarioides var. parviflora — Southern Barren Stawberry
Waldsteinia parviflora — Southern Barren Stawberry
Wallia cinerea — Butternut, White Walnut
Wallia nigra — Black Walnut
Waltheria americana — Sleepy Morning
Wedelia trilobata — Wedelia, Creeping Oxeye
Wisteria macrostachya — Mississippi Wisteria, American Wisteria, Swamp Wisteria, Kentucky Wisteria
Woodsia scopulina ssp. appalachiana — Appalachian Woodsia, Appalachian Cliff Fern, Mountain Woodsia
Woodsia scopulina var. appalachiana — Appalachian Woodsia, Appalachian Cliff Fern, Mountain Woodsia
Xanthium globosum — Common Cocklebur
Xanthium inflexum — Common Cocklebur
Xanthium pensylvanicum — Oriental Cocklebur
Xanthium strumarium var. canadense — Oriental Cocklebur
Xanthorrhiza simplicissima — Yellowroot
Xanthosma sagittifolium — Arrowleaf Elephant-ear, Malanga
Xanthoxalis brittoniae — Southern Yellow Wood-sorrel, Slender Yellow Wood-sorrel
Xanthoxalis bushii — Common Yellow Wood-sorrel
Xanthoxalis colorea — Small's wood-sorrel, Tufted Yellow Wood-sorrel, (NOT Sadie Price’s Yellow Wood-sorrel)
Xanthoxalis corniculata — Creeping Lady's-sorrel
Xanthoxalis cymosa — Common Yellow Wood-sorrel
Xanthoxalis filipes — Southern Yellow Wood-sorrel, Slender Yellow Wood-sorrel
Xanthoxalis filipes — Flowering Yellow Wood-sorrel
Xanthoxalis grandis — Large Wood-sorrel, Great Yellow Wood-sorrel
Xanthoxalis hirsuticaulis — Sadie Price’s Yellow Wood-sorrel
Xanthoxalis langloisii — Creeping Lady's-sorrel
Xanthoxalis macrantha — Sadie Price’s Yellow Wood-sorrel
Xanthoxalis priceae — Sadie Price’s Yellow Wood-sorrel
Xanthoxalis recurva — Flowering Yellow Wood-sorrel
Xanthoxalis rufa — Common Yellow Wood-sorrel
Xanthoxalis stricta — Common Yellow Wood-sorrel
Xanthoxylum americanum — Northern Toothache Tree, Northern Prickly-ash
Xanthoxylum clava-herculis — Southern Toothache Tree, Hercules-club, Sea-ash, Southern Prickly-ash
Xeniatrum umbellulatum — Speckled Wood-lily, White Clintonia
Ximenia americana var. americana — Tallow-wood, Hog-plum
Xolisma ferruginea — Rusty Lyonia, Staggerbush, Dragonwood, Crookedwood
Xolisma fruticosa — Staggerbush, Poor-grub
Xylosteon ciliatum — American Fly-honeysuckle
Xylosteon fragrantissimum — Sweet-breath-of-spring, Winter Honeysuckle
Xyris communis — Richard's Yellow-eyed-grass
Xyris congdonii — Small's Yellow-eyed-grass
Xyris difformis var. floridana — Florida Yellow-eyed-grass
Xyris elata — Richard's Yellow-eyed-grass
Xyris flexuosa — Pineland Yellow-eyed-grass, Carolina yellow-eyed-grass
Xyris neglecta — Curtiss's yellow-eyed-grass
Xyris pallescens — Pineland Yellow-eyed-grass, Carolina yellow-eyed-grass
Xyris stricta var. stricta — Pineland Yellow-eyed-grass, Strict Yellow-eyed-grass
Yucca concava — Beargrass, Spoonleaf Yucca, Curlyleaf Yucca
Yucca gloriosa var. gloriosa — Mound-lily Yucca, Spanish Bayonet
Yucca gloriosa var. recurvifolia — Curve-leaf Yucca
Yucca smalliana — Weakleaf Yucca
Yucca smalliana — Beargrass, Spoonleaf Yucca, Curlyleaf Yucca
Zamia floridana var. umbrosa — East Coast Coontie, Broad-leaflet Coontie, Palatka Giant Coontie
Zamia integrifolia — East Coast Coontie, Broad-leaflet Coontie, Palatka Giant Coontie
Zamia pumila — East Coast Coontie, Broad-leaflet Coontie, Palatka Giant Coontie
Zamia umbrosa — East Coast Coontie, Broad-leaflet Coontie, Palatka Giant Coontie
Zenobia cassinefolia — Zenobia, Honeycups
Zephyranthes atamasca var. atamasca — Common Atamasco-lily, Rain-lily, Easter Lily, Naked Lily
Zephyranthes atamasca var. treatiae — Rain-lily, Treat's Zephyr-lily
Zigadenus elegans — White Death-camas, White Camass, Mountain Death-camas
Zigadenus muscitoxicus — Fly-poison
Zizania miliacea — Southern Wild-rice, Water-millet, Giant Cutgrass
Zizia bebbii — Mountain Golden-Alexanders
Zizia cordata — Heartleaf Golden-Alexanders, Heartleaf Alexanders
Zizia latifolia — Mountain Golden-Alexanders
Zizyphus zizyphus — Chinese Jujube, Common Jujube, Chinese Date
Zosterella dubia — Water Stargrass
Zygadenus densus — Crow-poison, Savanna Camass, Osceola-plume
Zygadenus glaberrimus — Large Death Camas, Snakeroot, Sandbog Death-camas, Bog Death Camas
Zygadenus glaucus — White Death-camas, White Camass, Mountain Death-camas
Zygadenus leimanthoides — Pinebarrens Death-camas