New England to Florida and westward.
Flowers: growing in axillary racemes. Calyx: tubular; four or five-toothed. Corolla: papilionaceous, the standard partly wrapped about the other petals. Slam ens: ten; united. Pistil; one. Pods: one inch long; linear. Leaves: divided into three, ovate, pointed leaflets; netted-veined; thin; smooth. Stem: wiry; three-sided, covered with brown hairs.
This little plant is another that has its household divided against itself. The upper pretty flowers enjoy life, lend themselves to the breeze and are altogether useless; while the workers are down below and have no time to deck themselves in gay, pretty corollas. It is a graceful climber and has a fineness and delicacy of character often strongly in contrast to its associates, as it usually twines about coarse, rough plants.
Whoever maimed the unoffending little thing with the name of hog-peanut must still be smarting under the weight of his iniquities; although the circumstance that led to his doing so is traced in the underground, pale, one-sided, swollen and hairy pods, the product of the hidden blossoms. They are not unlike peanuts in appearance, and hogs uproot them to feast upon. Cattle eat also the herbage of the plant.