A scandent or scrambling shrub, branches hairy with hooked or straight prickles. Leaves 11-37.5 cm long, stipule semisagittate, caducous, 1.2-1.3 cm long, rachis armed with recurved prickles at the base of the pinnae, pinnae 5-10 pairs, opposite, 5-10 cm long, leaflets 8-12 pairs, opposite, 1.5-2 cm long, 5-10 mm wide, oblong, obtuse at both the ends, glabrous above, slightly hairy below, petiolule minute, stipels absent. Inflorescence terminal or axillary raceme, 30-40 cm long. Flowers yellow, 1.2-1.8 cm long, pedicel 1.2-3 cm long, hairy, jointed near the flower, bract 5 mm long, ovate-lanceolate, tomentose, caducous. Calyx 1-1.3 cm long. Petals suborbicular, bigger c. 13-14 mm long, smaller c. 11 mm long. Fila¬ments woolly in the lower half. Pods 6.2-12.5 cm long 1.7-2.8 cm wide, beaked, narrowly winged along the ventral suture, more or less woody and turgid, dehiscent late; seeds 4-8.