Slender shrub or tree with sparse canopy to 8 m high. Branchlets angular at extremities, sometimes stout (especially on young plants), glabrous, often lightly pruinose. Phyllodes straight or shallowly sigmoid, sometimes shallowly recurved especially near the normally acute apex, narrowed both ends, commonly erect, 10–17 (–22) cm long, 1–2.5 (–3) cm wide, to 4 cm on juvenile plants, glabrous, rather thinly textured; longitudinal veins numerous, 2 or 3 more prominent than the rest with lowermost pair running together in middle of phyllode at base, minor veins widely spaced (3 or 4 per mm) and longitudinally anastomosing in between; gland 1–5 mm above pulvinus; pulvinus 3–7 mm long. Inflorescences simple or on rudimentary racemes to c. 1.5 mm long, 4–6.5 cm long, ± loosely flowered, golden; peduncles 5–10 mm long, glabrous. Flowers 5-merous; calyx 0.4–0.5 mm long, broadly cupular, lobed to about middle, glabrous or fimbriate; ovary sparsely sericeous. Pods linear, ± straight, 8–9 cm long, 3–4 mm wide; convex over seeds, glabrous, with prominent marginal nerves. Seeds longitudinal, oblong, 3.8–4.5 mm long, 1.7–2.3 mm wide; aril terminal, cupular.
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