UW Burke Herbarium species comparison

Leaves pinnate, leaflets 4-8, oblong-oblanceolate, 1-2 cm. long, the rachis only 1.5-3 cm. long, flattened and prolonged as a straight bristle;

stipules ovate-hastate to lanceolate, equaling the leaflets in length.

Inflorescence of racemes on long peduncles arising from the leaf axils;

flowers 2-6, 12-18 mm. long;

calyx 8-11 mm. long, the 5 lanceolate teeth as long as the tube;

corolla pea-like, the banner 14-18 mm. long, pink to red or purple, the claw 2/3 as long as the blade;

wings and keel usually white, clawed, the keel tip slightly recurved.

Pod about 3 cm. long and 1 cm. broad, 1- to 5-seeded, hairy.