Slimjim Bean

Annual, Perennial, Herbs, Vines, twining, climbing, Taproot present, Nodules present, Stems prostrate, trailing, or mat forming, Stems less than 1 m tall, Stems 1-2 m tall, Stems solid, Stems or young twigs glabrous or sparsely glabrate, Leaves alternate, Leaves petiolate, Stipules inconspicuous, absent, or caducous, Stipules green, triangulate to lanceolate or foliaceous, Stipules persistent, Stipules free, Leaves compound, Leaves pinnately 3-foliolate, Leaves odd pinnate, Leaf or leaflet margins entire, Leaflets lobed or hastate, Leaflets opposite, Stipels present at base of leaflets, Leaflets 3, Leaves glabrous or nearly so, Flowers in axillary clusters or few-floweredracemes, 2-6 flowers, Inflorescences racemes, Inflorescence axillary, Bracts conspicuously present, Bracteoles present, Flowers zygomorphic, Calyx 5-lobed, Calyx 4-lobed, Calyx glabrous, Petals separate, Corolla papilionaceous, Petals pinkish to rose, Petals blue, lavander to purple, or violet, Banner petal suborbicular, broadly rounded, Banner petal auriculate, Wing petals narrow, oblanceolate to oblong, Keel abruptly curved, or spirally coiled, Keel tips obtuse or rounded, not beaked, Keel petals fused on sides or at tip, Stamens 9-10, Stamens diadelphous, 9 united, 1 free, Filaments glabrous, Style terete, Style spirally coiled, Style hairy, Fruit a legume, Fruit unilocular, Fruit freely dehis cent, Fruit oblong or ellipsoidal, Fruit strongly curved, falcate, bent, or lunate, Fruit exserted from calyx, Fruit explosively or elastically dehiscent, Valves twisting or coiling after dehiscence, Fruit glabrous or glabrate, Fruit hairy, Fruit 3-10 seeded, Seeds ovoid to rounded in outline, Seed surface wrinkled or rugose, Seeds olive, brown, or black.

Phaseolus filiformis is a species of wild bean native to the southwestern United States and northern Mexico. Its common names include slimjim bean, slender-stem bean, Wright's Limabean and Wright's phaseolus. This plant resembles other beans in appearance, with leaves composed of lobed triangular leaflets and pink pea-like flowers. The small bean pods are 2.5 to 3.5 cm long and less than 1 cm wide.