Erect, spreading, slightly viscid shrub 0.5–1 m high. Branchlets pubescent with weak, slightly to prominently retrorse hairs. Stipules 1–1.5 (–2) mm long. Phyllodes 10–20 per whorl, (3–) 4–8 (–10) mm long (excluding mucro), infrequently dimorphic with those subtending inflorescences c. ½ length of the others, 0.3–0.5 mm wide, straight to shallowly curved, recurved at apex, subterete to flat; longitudinal veins ±not visible; mucro distinct, ±setose, 0.5–1.5 (–2) mm long. Peduncles 10–20 mm long; heads 25–35-flowered. Bracteoles lanceolate to narrowly lanceolate, 1.5–2 mm long, 0.15–0.3 mm wide, acuminate. Flowers 5-merous; sepals ±½ length of petals, mostly free, oblong to narrowly oblong or ±linear, glabrous; petals striate but often obscurely so, ±glabrous. Pods ±sessile, 4.5–8 cm long, 5–7 mm wide, flat but raised over seeds along midline, reticulately veined. Seeds longitudinal to longitudinally oblique, black, dull except slightly shiny at centre, aril clavate.
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