A small much-branched tree; extremities obsoletely pubescent, pale cinnamon-brown. Infra-stipular prickles short, sharply recurved. Leaf-rachis 1–1 1/2 in., slender, thinly pubescent, with a sessile small gland below the lowest pinnæ; pinnæ in 4–5 pairs, leaflets 10–14-jugate, linear-oblong, obliquely broadly pointed, glabrous, drying pale green, 2–3 lines long. Spikes axillary on leafless branches, about 1 1/2 in. long with the short peduncle, rather dense. Flowers rose-white (grey-yellow when dry), sessile. Calyx cupuliform, 5-fid, with ovate- or oblong-lanceolate teeth, clothed with short dense grey tomentum. Petals united two-thirds their length, rather longer than the calyx and similarly pubescent externally. Ovary very shortly stipitate. Legume not seen.