Shrub or small tree, branches pale, wholly glabrous, or young shoots at first and peduncles puberulous. Infra-stipular spines very short, hooked, often wanting. Leaf-rachis 2–3 in., slender, with or without a small sessile gland near the base; pinnæ in 3–5 (-7) subdistant pairs; leaflets rather distant, 5–8-(-10) jugate, broadly oblanceolate obovate-oblong or oblong-obtuse, paler or glaucous beneath, minutely petiolulate, 3–5 lines long. Spikes in axillary fascicles of 2–5, developed before or with the young leaves, 1–1 1/2 in. long. Flowers (rose-coloured) rather lax, sessile, glabrous, excepting the short obtuse calyx-lobes. Petals united to the middle, more than twice as long as the calyx. Legume linear-oblong, flat, straight, 4–6 in. long, 3/4–1 in. broad, valves continuous or slightly sinuous, thinly coriaceous, transversely reticulate, glabrous, 5–7-seeded.