An undershrub 2–3 ft. high, the branches firm, subterete, with a few spreading setæ when young, glabrous when mature. Stipules setaceous. Petioles very short. Leaflets 9–13, oblanceolate or obovate, 3/8– 1/2 in. long, apex rounded mucronate, lateral ones contiguous, opposite, short-stalked, texture firm, upper surface green, lower glaucous, both very thinly silky. Racemes dense, 1–1 1/2 in. long, on firm erecto-patent peduncles 2 in. long, which like the rachis of the flower-cluster are coated with black pubescence. Calyx 2 lines, with dense similar pubescence, the teeth linear-subulate, reaching down nearly to the base. Corolla purplish, half as long again as the calyx. Pod spreading, linear-mucronate, 3/8 in. long, a line broad, densely clothed with close black pubescence, and scattered longer pale brown gland-tipped hairs, 6–8-seeded.
