Annual, suberect or procumbent, c. 5-45 cm tall, stem branched from the base, pubescent, hairs soft, white, spreading. Leaves imparipinnately compound, c. 5-15 cm long, petiole and rachis pubescent; leaflets 13-21, c. 5-12 mm long, oblanceolate, elliptic or oblong, entire, retuse, densely pilose on both sides; stipules c. 5-6 mm long, partially adnate to the base of the petiole, pubescent, hairs white. Inflorescence an axillary, peduncled raceme, peduncle c. 1-7.5 cm long, pubescent. Bracts c. 2.5-3 mm long, white-ciliate. Flowers subsessile. Calyx c. 5-6 mm long, densely pubescent, hairs white and black, teeth c. 2.5-4 mm long. Corolla yellow. Vexillum c. 5.5-6.5 mm long. Wing c. 4.5-5 mm long. Keel c. 5.5 mm long. Fruit subsessile, c. 1-2.2 cm long, falcate or spirally twisted, crumpled-rugose, pubescent, hairs white, semibilocular; seeds 20-30.