Amphicarpaea
(from amphi, both, and karpos, a fruit; in allusion to the two kinds of pods-those of the upper flowers being scimitar-shaped, three or four-seeded; those of the lower, pear-shaped, fleshy, usually ripening but one seed; these lower pods bury themselves in the ground after fertilisation). ORD. Leguminosoe. A genus of ornamental annuals, with herbaceous, twining stems, and sometimes apetalous flowers, allied to Wistaria. The species are of easy culture. Seeds should be sown in the open border, in spring, in a sunny situation.
A. monoica (monoecious). Hog Pea-nut. fl. with a pale violet vexillum, and white keel and wings; racemes axillary, pendulous. June to August. l. pinnately-trifoliate; leaflets ovate, glabrous. North America, 1781.