Amphicarpaea bracteata (L.) Fernald
Fabaceae (Pea Family)
USDA Symbol: AMBR2
A twining vine with 2 kinds of flowers. Flowers: Those on upper branches 1/2" (1.5 cm) long, pale purple, pale pink, or lilac, in clusters hanging from leaf axils; those on lower or creeping branches inconspicuous, lacking petals.
The genus name is from the Greek amphi ("of both kinds") and carpos ("fruit") and refers to the two kinds of fruit. The seeds of the upper fruit are inedible, but those from the underground fruit are edible when boiled. Birds feed on the seeds of both kinds of fruit. Hogs eat the seeds of the fruit below ground, hence the plant's common name.
From the Image Gallery
Plant CharacteristicsDuration: Annual
Leaf Arrangement: Alternate
Fruit Type: Legume
Size Notes: Stems twining, up to about 5 feet long.
Bloom InformationBloom Color: White , Pink , Purple
Bloom Time: Aug , Sep
DistributionUSA: AL , AR , CT , DC , DE , FL , GA , IA , IL , IN , KS , KY , LA , MA , MD , ME , MI , MN , MO , MS , MT , NC , ND , NE , NH , NJ , NY , OH , OK , PA , RI , SC , SD , TN , TX , VA , VT , WI , WV
Canada: NB , NS
Native Distribution: Manitoba east to Nova Scotia, south to Florida, west to Texas, and north to North Dakota and Montana.
Native Habitat: Woodlands.
Larval Host: Silver-spotted Skipper (Epargyreus clarus), Northern Cloudywing (Thorybes pylades)
Butterflies and Moths of North America (BAMONA)
Learn more at BAMONA
Northern Cloudywing |
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National Wetland Indicator Status
From the National Organizations DirectoryAccording to the species list provided by Affiliate Organizations, this plant is on display at the following locations:
Natural Biodiversity - Johnstown, PA
BibliographyBibref 1186 - Field Guide to Moths of Eastern North America (2005) Covell, C.V., Jr.
Bibref 1185 - Field Guide to Western Butterflies (Peterson Field Guides) (1999) Opler, P.A. and A.B. Wright
Search More Titles in Bibliography
Web ReferenceWebref 57 - Atlas of Florida Plants (2020) Institute for Systematic Botany
Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter
Additional resourcesUSDA: Find Amphicarpaea bracteata in USDA Plants
FNA: Find Amphicarpaea bracteata in the Flora of North America (if available)
Google: Search Google for Amphicarpaea bracteata
MetadataRecord Modified: 2022-11-09
Research By: TWC Staff