Dense intricate shrub 0.5–2 m tall. Branchlets glabrous. Stipules persistent, spinose or not, 1–3 mm long. Phyllodes sessile, normally continuous with branchlets but not forming cauline-wings, patent to strongly reflexed or ascending, acicular, straight to shallowly recurved, terete to flat, (1.3–) 2–3 (-5) cm long, 0.7–1 mm diam., cuspidate-pungent, rigid, green to subglaucous (conspicuously glaucous when young), glabrous, with 8 distant raised nerves altogether, 3-nerved per face when flat. Inflorescences simple, 1 per axil; peduncles (8–) 10–15 (–20) mm long, glabrous; basal bracts persistent; heads globular, 4–5 mm diam., 14–27-flowered, golden; bracteoles spathulate, acute or obtuse, exserted or not. Flowers 5‑merous; sepals free, spathulate or linear-spathulate. Pods (typical subspecies) strongly curved to openly once coiled, to 4 cm long, 2.5–3 mm wide, glabrous. Seeds (typical subspecies) longitudinal, broadly elliptic, 2.5–3 mm long, shiny, mottled; aril ±clavate.
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