Shrub 0.5–2 m tall; branches often ±contorted. Branchlets ±ridged, appressed-puberulous. Phyllodes inclined to erect, straight, subterete or terete, 2–4 cm long, 1–1.5 mm wide, rather abruptly narrowed to a sharply pungent or mucronate to mucronulate tip, rigid, glabrous or pulvinus often puberulous adaxially, with numerous closely parallel raised nerves that are sometimes paler than internerve spaces; stomata evident in internerve spaces; gland small; pulvinus normally slightly expanded at base. Inflorescences simple, 2 per axil; peduncles mostly 2–4 mm long, glabrous; heads globular, 5–6 mm diam. (fresh), 3–4 mm diam. (dry), 15–20-flowered, golden. Flowers 5-merous; sepals free. Pods linear, raised over and ±constricted between seeds, moderately curved, to 6 cm long and 2.5 mm wide, thin-crustaceous or thin-coriaceous, ±appressed-puberulous. Seeds longitudinal, oblong-elliptic, 2.5–4.5 mm long, c. 1.5 mm wide, ±glossy, dark brown; aril terminal, conical or broadly rounded and crested, pale yellow.
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