Shrub to 4 m high, sometimes a tree to 6 m high, openly branched, ± obconic, glabrous, variably resinous. Branchlets rather prominently ribbed, angled towards apices, variably tuberculate. Phyllodes asymmetrically narrowly elliptic, straight but sometimes shallowly recurved at apices, mostly 4–7 cm long, 6–16 mm wide, commonly ± acute, mucronate, thin, often drying brownish, sparsely tuberculate, with numerous subdistant veins; veins 3–5, slightly more pronounced than the intervening venules; anastomoses few or absent; glands 2 or 3, not prominent, with lowermost 0–1 mm above pulvinus and uppermost at base of mucro. Inflorescences simple, 2 per axil; spikes 1.5–4.5 cm long, narrow, golden; peduncles 1.5–3 mm long. Flowers 5-merous; sepals free. Pods narrowly oblong, narrowed at base, to 7.5 cm long, 6–8 mm wide, woody, red-brown, finely obliquely nerved, dehiscing elastically from apex; margins narrowly winged with wing c. 2 mm wide. Seeds oblique, elliptic, 4–4.5 mm long, somewhat shiny, brown; funicle/aril narrowly turbinate.
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