Tall shrub or tree 3–8 m high, with sparse whippy branches. Bark smooth, later fibrous, grey-brown or red-brown. Branchlets acutely angular, finely striate, glabrous. Phyllodes very narrowly elliptic or sometimes elliptic, ± straight, 9–16 cm long, 13–41 mm wide, coriaceous, glabrous, with 2–4 prominent veins (the lower two joined 4–20 mm above phyllode base); minor veins 2 or 3 per mm and moderately anastomosing; mucro knob-like; pulvinus 5–10 mm long. Spikes mostly paired in axils, 3–5.5 cm long, very dense, bright yellow. Flowers 5-merous; calyx 0.4–0.5 mm long, dissected by c. ½, almost glabrous except for marginal cilia and scattered hyaline hairs sometimes along keels and near base; corolla 1.5–2 mm long; ovary densely hairy. Young pods linear, usually flexuose.
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