Tree to 10 m tall; branchlets glabrous or sometimes with scattered hairs; spines paired, 4–15 mm long, sometimes absent. Leaves pallid, grey-green when dry; main axes 10–50 mm long, hairy; pinnae 2–4-jugate, rarely 1-jugate, 2–5 cm long; leaflets (7–) 9–15-jugate, oblong-elliptic or ovate, obtuse, apiculate, relatively rigid, coriaceous, lying ±flat when dry, (2–) 4–8 (–10) mm long, 1.5–3 mm wide, 2–4 times as long as wide, moderately pubescent on both surfaces or almost glabrous, ciliolate; internodes of the pinnae axes 2–3.5 mm long. Racemes 8.5–12 cm long, 2–3 times longer than the leaves. Calyx sometimes with scattered hairs outside, usually ciliolate. Pod straight or curved, 7–16 cm long, c. 10 mm wide, pale yellow to golden brown, glabrous; margins parallel or slightly undulate. |