Leaves: petiole 0·5-2·9 cm. long; rhachis 1·7-7 cm. long; pinnae opposite, 2-4 pairs; leaflets 4-9 pairs, (0·5)0·7-2·1 x (0·3)0·6-1·5 cm., rhombic-ovate or-obovate, rounded or slightly emarginate and mucronate at the apex.
Scandent shrub or small tree 3-6 m. high; young branchlets, petioles and rhachides ± puberulous; older branchlets longitudinally striate.
Pods 7-11 x 1·3-1·8 cm., attenuate below, blackish when dry, obliquely ± longitudinally striate.
Calyx 0·75-1 mm. long, densely and shortly pubescent.
Petals 2·5-3 mm. long, densely puberulous outside.
Stamen-filaments 4-5·5 mm. long.
Seeds c. 7-8 x 5-7 mm.
Ovary densely hairy.
Flowers white.