Erect shrub, branches grey silky. Leaf trifoliolate, petiole 2.5-6.5 cm long, leaflets 7.5-10 cm long, c. 5 cm broad, ovate or obovate, rounded at both ends, mucronate, glabrescent above, densely appressed hairy below; stipules c. 7.5 mm long. Inflorescence axillary and terminal panicle, flowers solitary or in pairs. Bracts 6-7 mm long. Pedicel 5- 6 mm long. Calyx c. 4 mm long, pubescent, teeth as long as the tube. Corolla 7.5-10.0 mm long, lilac. Fruit 1.8-2.5 cm long, upper suture slightly or more indented, the lower deeply indented, articles 2.5-4.0 mm long, appressed pubescent.