Spreading open shrub 0.5–3 m high; bipinnate leaves sometimes retained on mature plants. Branchlets shortly ± villous. Phyllodes crowded, some subverticillate, on short stem-projections, ascending to erect, linear to narrowly oblanceolate or narrowly elliptic, straight to incurved, flat, 8–22 mm long, 1–2 mm wide, obliquely mucronate, glabrous to sparsely hairy, finely rugulose when dry, ± veinless; gland inconspicuous, 2–9 mm above pulvinus, sometimes absent; bipinnate leaves sometimes persistent. Inflorescences 1–7-headed racemes, interspersed with some simple ones; raceme axes 3–40 mm long, stout, shortly ±villous; peduncles 4–11 mm long, stout, shortly ± villous; heads globular, 7–9 mm diam, 25–50-flowered, golden. Flowers 5-merous; sepals ⅔–⅚-united; petals appressed-hairy. Pods linear, variously curved, to 8 cm long, 4–7 mm wide, coriaceous, dark brown to blackish, glabrous or shortly ± villous. Seeds longitudinal, oblong-elliptic, 4–5 mm long, shiny, black; aril clavate.
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