Spermatophytes (seed plants): Angiosperms (flowering plants): Monocots: Commelinids: Poales
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Coleataenia rigidula ssp. rigidula
FAMILY
Poaceae
Go to FSUS key
Dig deeper at SERNEC, a consortium of southeastern herbaria.
Redtop Panicgrass needs another name! Read more at Vascular Plants of North Carolina.
INCLUDED WITHIN
PLANTS NATIONAL DATABASE:
Panicum rigidulum var. rigidulum
FAMILY
Poaceae
SYNONYMOUS WITH Vascular flora of Illinois (Mohlenbrock, 2014)
Coleataenia rigidula
INCLUDED WITHIN Flora of North America north of Mexico, vol. 25 (2003)
Panicum rigidulum ssp. rigidulum
SYNONYMOUS WITH Guide to the Vascular Plants of the Blue Ridge (Wofford, 1989)
Panicum rigidulum var. rigidulum
SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 029-81-004a:
Panicum agrostoides var. agrostoides FAMILY Poaceae
INCLUDING Manual of the Grasses of the US (Hitchcock & Chase, 1950)
Panicum agrostoides var. agrostoides
INCLUDING Manual of the Grasses of the US (Hitchcock & Chase, 1950)
Panicum agrostoides var. ramosius
SYNONYMOUS WITH Manual of the Southeastern Flora (Small, 1933, 1938)
Panicum agrostoides
COMMON NAME:
Redtop Panicgrass
To see larger pictures, click or hover over the thumbnails.
)
USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913 pnd_paag_001_lvd
)
USDA-NRCS PLANTS Database / Hitchcock, A.S. (rev. A. Chase). 1950 pnd_paag_002_lhd
)
Gill Newberry gn09_p_agrostoides_flower
September
Spikelets greeinish-purple, attached on 1 side of the panicle branches, per Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians (Horn, Cathcart, Hemmerly, & Duhl, 2005).
)
Gill Newberry gn09_p_agrostoides_habit
September
Leaf blades erect, folded at base, flat above, 20-50cm long, 5-12mm wide, per Manual of the Grasses of the United States (Hitchcock & Chase, 1950).
)
Gill Newberry gn09_p_agrostoides_inf
September
Inflorescence a narrow, pyramidal panicle, 4-12" tall, per Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians (Horn, Cathcart, Hemmerly, & Duhl, 2005).
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Coleataenia rigidula ssp. rigidula
FAMILY
Poaceae
INCLUDED WITHIN
PLANTS NATIONAL DATABASE:
Panicum rigidulum var. rigidulum
FAMILY
Poaceae
SYNONYMOUS WITH
Vascular flora of Illinois (Mohlenbrock, 2014)
Coleataenia rigidula
INCLUDED WITHIN
Flora of North America north of Mexico, vol. 25
Panicum rigidulum ssp. rigidulum
SYNONYMOUS WITH
Guide to the Vascular Plants of the Blue Ridge (Wofford, 1989)
Panicum rigidulum var. rigidulum
SYNONYMOUS WITH
VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 029-81-004a:
Panicum agrostoides var. agrostoides
FAMILY
Poaceae
INCLUDING
Manual of the Grasses of the US (Hitchcock & Chase, 1950)
Panicum agrostoides var. agrostoides
INCLUDING
Manual of the Grasses of the US (Hitchcock & Chase, 1950)
Panicum agrostoides var. ramosius
SYNONYMOUS WITH
Manual of the Southeastern Flora (Small, 1933, 1938)
Panicum agrostoides
3545
Grass, Sedge, or Rush
Perennial
Habitat: Wet sandy or peaty soils low woods, meadows, marshes, shores, swamps, ditches, often weedy, per Weakley's Flora
Native to the Carolinas & Georgia
Common (uncommon in GA Mountains, rare in Carolina Mountains)
CLICK HERE to see a map, notes, and images from Weakley's Flora of the Southeastern US.
LEAVES:
Simple
Basal & alternate, 2-ranked
RHIZOMES? STOLONS?
Cespitose [growing in dense tufts, clumping], not rhizomatous
FLOWER:
Summer/Fall
Spikelets greenish-purple
Inflorescence an open panicle
FRUIT:
Summer/Fall
Grain purplish to blackish
Grain
TO LEARN MORE about this plant, look it up in a good book!
- Manual of the Grasses of the United States (Hitchcock & Chase, 1950) p701
- Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians (Horn, Cathcart, Hemmerly, & Duhl, 2005) p401
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