Wildflowers of Southern Arizona
Bean (Fabaceae) family.
Perennial: Herb. Taproot present. Nodules present. Stems or branches arching, spreading or decumbent. Stems prostrate, trailing, or mat forming. Stems less than 1 m tall, Stems 1-2 m tall, climbing by tendrils. Stems solid. Stems or young twigs glabrous or sparsely glabrate. Stems or young twigs sparsely to densely hairy. Leaves alternate, petiolate. Stipules inconspicuous, absent, or caducous. Stipules green, triangulate to lanceolate or foliaceous. Stipules persistent. Stipules free. Leaves compound, even pinnate. Leaf or leaflet margins entire. Leaflets opposite, alternate or subopposite and 5-9, Leaflets 10-many. Leaves glabrous or nearly so. Inflorescences racemes. Inflorescence axillary. Bracts very small, absent or caducous. Flowers zygomorphic. Calyx 5-lobed, glabrous. Petals separate. Corolla papilionaceous. Petals clawed, white, bicolored or with red, purple or yellow streaks or spots. Banner petal ovoid or obovate. Wing petals narrow, oblanceolate to oblong. Wing petals auriculate. Wing tips obtuse or rounded. Keel tips obtuse or rounded, not beaked. Stamens 9-10, diadelphous, 9 united, 1 free. Filaments glabrous. Style terete, sharply bent, hairy, or hairy on one side only. Style with distal tuft of hairs.
Santa Catalina Mountains.
Location: On shoulder of access road to Marshall Gulch Trail.
See SEINet Pictures and Description