Plant is an upright annual; smooth or with a few appressed
hairs on the stem and leaf. Preferred habitat is roadsides, waste
places and fence rows. Distribution is throughout the Escambia
Leaves number 18-20 leaf segments that are slightly alternate
on the stalk; egg-shaped to narrowly lance-like; prominent vein.
A small tendril protrudes from the tip of each leaf with which
the plant advances itself upward the host plant.
Flowers are in a long raceme that arises from the leaf
axil; stalks longer than the leaf stalk. The calyx is barely
bulging at its base; the pedicel appearing basal. Flowers occur
in the summer.
Fruit is a legume.