Perennial, scrambling, stem angled, subglabrous or pubescent. Leaf paripinnately compound, leaflets 2,10-40 mm long, 1.5-11 mm broad, linear-lanceolate; stipules 10-30 mm long, ovate-lanceolate, unequally sagittate. Inflorescence a 3-12-flowered, peduncled axillary raceme, peduncle much longer than the leaf. Calyx 6-9 mm long, teeth somewhat unequal, the lowest tooth 1-2 times as long as the tube. Corolla yellow, 10-16 mm long. Fruit 2-3 cm long, 5-6 mm broad, mostly glabrous, 4-8-seeded.