Bushy shrub or tree usually 2.5–7 m high; young branches pendulous. New growth reddish. Branchlets acutely angled, dark red, sometimes pruinose, glabrous. Phyllodes narrowly elliptic to lanceolate, straight to shallowly falcate, usually 5–12 cm long and 7–15 mm wide, acuminate, thin, grey-green, glabrous, with prominent midrib, obscurely penninerved; gland 1–4 cm above pulvinus, sometimes connected to midrib by a fine oblique vein. Inflorescences racemose; raceme axes 2.5–7 cm long, glabrous; peduncles 3–9 mm long, glabrous; heads globular, 20–32-flowered, pale yellow to creamy white. Flowers 5-merous; sepals partially united. Pods stipitate, broadly linear to narrowly oblong, slightly raised along midline, to 12 cm long, 10–18 mm wide, firmly chartaceous, dark brown to blackish, lightly pruinose, glabrous. Seeds longitudinal, oblong-elliptic, 6–8 mm long, slightly shiny, black, minutely puncticulate; aril pileiform to clavate.
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