Erect or spreading annual, up to 1.5 m tall; stem pilose, hairs stiff, mostly brown. Leaf imparipinnately compound, petiole up to 2 cm long, pilose; rachis up to 7 cm long, pilose; leaflets 5-11, up to 40 mm long and 25 mm wide, pilose on both sides; petiolules c. 2 mm long; stipules up to 1 cm long. Inflorescence a raceme, peduncle 25 mm long, hirsute. Bract up to 5 mm long, caducous. Pedicel c. 1 mm long. Calyx c. 4 mm long, brown hirsute, teeth linear setaceous, cup very small. Vexillum c. 4-4.5 mm long. Fruit tetragonal, c. 10-20 mm long, c. 3 mm wide, hirsute, up to 6-seeded.