Straggly rush-like ± glabrous shrub 0.4–1 m high, sometimes prostrate or semi-prostrate. Branches slender and wiry, terete, finely striate with yellow ribs, green and ± sulcate between ribs. Phyllodes reduced to continuous thin horizontally flattened narrowly triangular scales, 1.5–3 mm long; bipinnate leaves sometimes persistent at base of stems. Inflorescences simple, 1–3 in axil of scales; peduncles 7–15 mm long, slender; heads 1–4-flowered, commonly 2-flowered, yellow; bracteoles persistent, navicular, c. 1 mm long; buds cylindrical to narrowly obovate, 1 mm wide. Flowers 4-merous; sepals united, c. 1/3 length of corolla; petals finely flabellate-striate. Pods stipitate, shallowly curved, 2–6 cm long, 4–5 mm wide, acute to acuminate, thinly coriaceous-crustaceous, acutely quadrangular by flat winged margins 1–2 mm wide, reddish brown, glabrous. Seeds longitudinal, oblong, 5 mm long; aril terminal, conical.
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