Root woody, stem villous, c. 30 cm or less long. Leaf imparipinnately compound, petiole c. 4.5-10 cm long, villous; rachis c. 5.0-17 cm long, villous. Leaflets 11-17, lateral leaflets opposite to alternate, c. 5-29 mm long, c. 5-29 mm broad, ovate-orbicular, entire, obtuse, glabrous above, sericeous; below petiolule c. 1.5 mm long; stipules c. 5-7 mm long, pilose externally. Inflorescence axillary raceme, peduncle c. 10-12 mm; bracts c. 4-6 mm, pubescent; pedicel c. 18-20 mm, villous. Calyx cup 13-14 mm long, teeth c. 6-7 mm long. Corolla yellow. Vexillum c. 28-30 mm long. Calyx enlarging in fruit, c. 28-35 mm long. Fruit c. 12-15 mm long excluding the apical tip and the basal stipe, glabrous, bilocular, each half 1-seeded.