Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Asterids: Lamiids: Solanales
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (2/10/25):
Convolvulus fraterniflorus
FAMILY
Convolvulaceae
Go to FSUS key
Dig deeper at SERNEC, a consortium of southeastern herbaria.
The former Calystegia sepium has now been split out into several species, not to mention all now in the genus Convolvulus. Read more at Vascular Plants of North Carolina.
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Calystegia silvatica ssp. fraterniflora
FAMILY
Convolvulaceae
SYNONYMOUS WITH Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Calystegia silvatica ssp. fraterniflora
SYNONYMOUS WITH (ORTHOGRAPHIC VARIANT) Vascular flora of Illinois (Mohlenbrock, 2014)
Calystegia silvatica ssp. fraterniflorus
SYNONYMOUS WITH Key to the bindweeds (Calystegia/Convolvulus, Convolvulaceae) of Alabama and adjacent states (Spaulding, 2013)
Calystegia silvatica ssp. fraterniflora
SYNONYMOUS WITH The Plants of Pennsylvania (Rhoads & Block, 2007)
Calystegia silvatica var. fraterniflora
SYNONYMOUS WITH Floristic Synthesis of North America (Kartesz, 1999)
Calystegia silvatica ssp. fraterniflora
INCLUDED WITHIN Manual of Vascular Plants of NE US & Adjacent Canada (Gleason & Cronquist,1991)
Calystegia sepium
INCLUDED WITHIN VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 158-06-002?:
Calystegia sepium FAMILY Convolvulaceae
SYNONYMOUS WITH Britton & Brown Illus Flora of Northeast US & adjacent Canada (Gleason, 1952)
Convolvulus sepium var. fraterniflorus
SYNONYMOUS WITH Flora of North America north of Mexico, vol. 14
Calystegia silvatica ssp. fraterniflora
COMMON NAME:
Twin-flowered Bindweed, Twoflower Bindweed, Shortstalk False Bindweed
To see larger pictures, click or hover over the thumbnails.
)
USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913 pnd_cofr7_001_lvd
)
JK Marlow jkm140701_504
July Greenville County SC
Cleveland Park
)
JK Marlow jkm140701_505
July Greenville County SC
Cleveland Park
Bracts distinctly overlap and conceal the majority of the sepals, per Key to the Bindweeds (Calystegia/Convolvulus, Convolvulaceae) of Alabama and adjacent states (Spaulding, 2013).
)
JK Marlow jkm140701_514
July Greenville County SC
Cleveland Park
Flowers occasionally in pairs in axils, per Key to the Bindweeds (Calystegia/Convolvulus, Convolvulaceae) of Alabama and adjacent states (Spaulding, 2013).
)
JK Marlow jkm140701_516
July Greenville County SC
Cleveland Park
Margins of bracts overlapping at least half their length, per Key to the Bindweeds (Calystegia/Convolvulus, Convolvulaceae) of Alabama and adjacent states (Spaulding, 2013).
)
Richard and Teresa Ware rtw_c_silvatica_frater
July
)
JK Marlow jkm140804_305
August Greenville County SC
Cleveland Park
Leaf sinus broad and usually squared-off (quadrate) with 2 parallel sides, per Key to the Bindweeds (Calystegia/Convolvulus, Convolvulaceae) of Alabama and adjacent states (Spaulding, 2013).
)
JK Marlow jkm140804_308
August Greenville County SC
Cleveland Park
)
JK Marlow jkm140804_309
August Greenville County SC
Cleveland Park
)
JK Marlow jkm140814_497
August Greenville County SC
Swamp Rabbit Trail
Stems strongly twining, to 4m+ long; flowers borne along middle & upper stems, per Weakley's Flora.
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (2/10/25):
Convolvulus fraterniflorus
FAMILY
Convolvulaceae
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Calystegia silvatica ssp. fraterniflora
FAMILY
Convolvulaceae
SYNONYMOUS WITH
Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Calystegia silvatica ssp. fraterniflora
SYNONYMOUS WITH (ORTHOGRAPHIC VARIANT)
Vascular flora of Illinois (Mohlenbrock, 2014)
Calystegia silvatica ssp. fraterniflorus
SYNONYMOUS WITH
Key to the bindweeds (Calystegia/Convolvulus, Convolvulaceae) of Alabama and adjacent states (Spaulding, 2013)
Calystegia silvatica ssp. fraterniflora
SYNONYMOUS WITH
The Plants of Pennsylvania (Rhoads & Block, 2007)
Calystegia silvatica var. fraterniflora
SYNONYMOUS WITH
Floristic Synthesis of North America (Kartesz, 1999)
Calystegia silvatica ssp. fraterniflora
INCLUDED WITHIN
Manual of Vascular Plants of NE US & Adjacent Canada (Gleason & Cronquist,1991)
Calystegia sepium
INCLUDED WITHIN
VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 158-06-002?:
Calystegia sepium
FAMILY
Convolvulaceae
SYNONYMOUS WITH
Britton & Brown Illus Flora of Northeast US & adjacent Canada (Gleason, 1952)
Convolvulus sepium var. fraterniflorus
SYNONYMOUS WITH
Flora of North America north of Mexico, vol. 14
Calystegia silvatica ssp. fraterniflora
3591
Herbaceous vine
Perennial
Habitat: Thickets, roadsides, fields, streambanks, disturbed areas, per Weakley's Flora
Native to the Carolinas & Georgia
Rare
CLICK HERE to see a map, notes, and images from Weakley's Flora of the Southeastern US.
LEAVES:
Simple
Alternate
FLOWER:
Spring/Summer/Fall
White/ Pinkish
5-merous or rarely 4-merous
5 sepals
Shallowly 5-lobed (or merely wavy-edged) campanulate to funnelform corolla
5 stamens
Superior ovary
Flowers in leaf axils
FRUIT:
Spring/Summer/Fall?
Capsule
TO LEARN MORE about this plant, look it up in a good book!
If a search such as "Carex leptalea var. leptalea" doesn't deliver the results you want, try "Carex leptalea".
Or, to minimize chances of a misspelling, try just "Carex le".
Less is more: If "pencil flower" doesn't deliver the results you want, try "pencil".