Stem trailing, terete, hairs yellow, viscous. Stipules c. 4-5 mm long, pilose. Leaf pinnately trifoliolate, petiole 2.0-5.5 cm long, pilose. Petiolule c. 2-2.5 mm long, villous, lamina 2.5-7.5 cm long, 1.6-5.5 cm broad, ovate, entire, acuminate, pubescent on both sides. Inflorescence an axillary pedunculate raceme, c. 15-30 cm long, pubescent, peduncle 2.5-3.50 cm long. Bract 5-6 mm long, pilose, pedicel 3-4 mm long, pilose. Calyx 1.5-1.7 cm long, pubescent, teeth very unequal, lower tooth longest, 12-13 mm long, upper teeth 6-7 mm long. Corolla yellow, vexillum with brownish purple veins, c. 14-15 mm long. Wing c. 12-13 mm. Keel c. 13.5-14.5 mm. Fruit 2.5-2.8 mm long, 6-8 mm broad. narrow at both ends, velutinous, 2-seeded.