An erect tree 25–30 ft. high with terete branches, the young twigs thinly silky. Petioles about an inch long, firm; leaves 3–6 in. long; leaflets 5–9, ovate or oblong, pointed, 2–4 in. long, the base rounded, coriaceous, both sides glabrous, veins not much raised. Flowers in dense axillary racemes 3–6 in. long, on short woody peduncles. Pedicels 1/8 in. long, cernuous, thinly silky. Calyx turbinate, 1/4 in. deep, thinly silky, the teeth irregularly deltoid, reaching a quarter of the way down. Corolla yellowish, not twice as long as the calyx, the standard half an inch broad. Stamens monadelphous. Pod roundish, sessile, 1 1/2 in. broad, the centre much thicker and more verrucose than in the other species, the faces glabrous, the rigid wing very narrow and sometimes absent from one side, the style slightly oblique.