Shrub or small tree; trunk with corky bosses; branchlets usually glabrous, usually armed with straight or slightly recurved prickles. Leaves 7–9-foliolate; rhachis unarmed or rarely with 1–2 prickles; leaflets oblong-elliptic to ovate, 6–15 x 2.5–6.5 cm, obtuse to shortly acuminate at the apex, cuneate at the base, with crenulate to minutely serrulate margins, the lateral leaflets with 1.5–4 mm long petiolules. Panicles terminal, ± much-branched, with mostly clustered 4-merous flowers on pedicels 1–4 mm long or more. Petals white, 1.5–3 mm long. Female flowers with solitary carpel. Follicle on short stipe, globose, 4–6 mm in diam.