Coefficient of Conservatism:
Coefficient of Wetness:
INDIAN-POTATO, GROUNDNUT, WILD-BEAN
R. W. Smith
A low vine of moist forests, shores, river-bank thickets, marshes and meadows, wet prairies, streamside. Strings of edible tubers are produced underground and can be prepared like potatoes. The flowers are normally a very deep red- or purple-brown, with a strongly curved, even coiled, keel.
Rarely, young plants will bear mostly or only trifoliolate leaves; these can be distinguished from Amphicarpaea by the relatively large perennial underground tubers. Amphicarpaea is a fibrous rooted annual (but do not mistake the large underground seeds of Amphicarpaea for tubers).