Spindly, single-stemmed, sparingly branched, erect shrub 1–2 m high. Branchlets densely pubescent with short, patent or slightly retrorse hairs. Stipules setaceous to linear-triangular, mostly 1.5–2.5 mm long. Phyllodes 14–20 per whorl, 4–10 mm long, 0.4–0.7 mm wide, apices terminated by a setose point 1–1.5 mm long, ascending to erect to patent, mostly flat, straight to shallowly recurved, pubescent by fine, very short hairs to c. 0.1 mm long; longitudinal veins 1 or 3 on lower surface. Peduncles 10–17 mm long, pubescent with hairs similar branchlets except less dense. Heads 35–45-flowered; bracteoles narrowly lanceolate, 2.5–3.5 mm long, slightly exserted in buds, glabrous, long-acuminate to caudate. Flowers 5-merous; calyx ⅓–⅖ length of corolla, shortly dissected into 5–10, linear to narrowly triangular lobes; petals 5, striate but sometimes obscurely so, glabrous or sparsely short-hairy at apices. Pods subsessile, narrowly oblong, 25–50 mm long, 6–7 mm wide, flat but raised over seeds along midline; marginal vein thickened. Seeds longitudinal, irregularly obloid to cubic or widely ellipsoid, 4–4.5 mm long, black, slightly shiny.
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