Decumbent or erect biennial up to 1.5 m high; stems ± glabrous but sparsely hairy in upper parts. Lvs ± glabrous but sparsely hairy when young; petioles c. 5-25 mm long; leaflets narrowly to broadly elliptic or obovate, acute, obtuse or somewhat emarginate, mucronate, obtuse to cuneate at base, serrate, c. 10-25 mm long; stipules linear-lanceolate, entire. Racemes lax and slender, up to 20 cm long at fruiting; fls numerous. Peduncles > petioles. Calyx ± glabrous or sparsely hairy; calyx teeth mostly < tube, narrowly triangular. Corolla yellow, 4-6 mm long; wings > keel. Pod glabrous, transversely rugose, c. 3 mm long, 1-2-seeded; seeds light brown, 2-3 mm long.