Shrub or tree to 9 m high. Bark smooth, red or green, later dark brown or grey. Branchlets dark brown, black or dark blue, markedly ridged when young, grey-or yellow-puberulous or ±glabrous. Young foliage-tips pale yellow or golden, velvety-pubescent. Leaves coriaceous, dark green; petiole above pulvinus mostly 0.5–1.6 cm long, vertically flattened, with 1 orbicular ±glabrous gland near basal pinnae (rarely this gland or another gland to ½ below basal pinnae); rachis 3.5–8 cm long, bearing prominent jugary glands with large orifices at base of each pair of pinnae, and 1–3 often contiguous ±glabrous interjugary glands between some pairs of pinnae or sometimes absent; pinnae 10–18 pairs, 1–3.5 cm long; pinnules 14–35 (–49) pairs, oblong to narrowly oblong, 1–2 (–3) mm long, 0.5–0.7 (–0.8) mm wide, ±glabrous or sparsely puberulous on margins and often beneath, rounded or subacute apically. Inflorescences in axillary racemes, or terminal or axillary false-panicles; peduncles 2–5 mm long. Heads globular, 19–23-flowered, pale yellow. Pods almost straight-sided, 6–14 cm long, 6–9 mm wide, coriaceous, brown, red-brown or black, sparsely puberulous.
Grows in open forest or woodland, in undulating country, alluvial flats or black soil plains, in brown clay, red sandy loam or red volcanic soils.
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