Spreading deciduous tree to 10 m high, usually with stout, simple or branched spines, 2–10 cm long.
Leaves 15–20 cm long, pinnate with 5–15 pinnae pairs or more often bipinnate with 2–7 pairs of pinnae and 12–30 pinnules per pinnae; leaflets elliptic to ovate, mostly 10–35 mm long, 5–12 mm wide, sparsely toothed; petiole and rachis ± hairy, petiole 3–5 cm long.
Racemes 5–10 cm long, golden-pubescent. Calyx 3–4 mm. Petals 4–6 mm long.
Pod slightly falcate, 15–40 cm long, 3–4 cm wide, dark brown; seeds 15–25, c. 10 mm long.
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