Diffuse shrub to 2.3 m tall; terminal branches commonly long, undivided and arching downwards. Branchlets finely yellow-ribbed, glabrous to shortly pilose or antrorsely puberulous. Stipules often spinose, 2–4 mm long, slender. Phyllodes ±patent, inequilateral, shallowly obdeltate to shallowly obtriangular with a prominent gland-bearing angle on adaxial margin, with adaxial proximal margin commonly convex and ±contiguous with branchlet and adaxial distal margin concave, 6–10 mm long, 3–8 mm wide, acuminate, pungent, normally glabrous; midrib prominent and near abaxial margin, often with an obscure second nerve. Inflorescences simple, 1 per axil; peduncles 3.5–10 mm long, slender, glabrous or sparsely puberulous; heads globular, 5–10-flowered, cream to pale yellow; buds ±obtuse. Flowers 4-merous; sepals c. ¾-united; petals obscurely 1-nerved. Pods linear, curved, commonly twisted, to 7 cm long, 2–3 mm wide, ±thinly coriaceous-crustaceous, glabrous. Seeds longitudinal, ±oblong, 2.5–3 mm long, glossy, brown, arillate.
Often grows near swamps and creeks but occurs also on drier sites in loamy laterite in Jarrah (Eucalyptus marginata) forest and, near Augusta, in sand over limestone in coastal heath.
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