Openly branched shrub 1–3 m high. Branchlets glabrous or sparsely appressed-hairy, light brown or reddish brown (or sometimes light green) towards the tips. Phyllodes continuous with branchlets, ascending to erect, substraight to moderately incurved with few irregularly sinuous, not rigid, filiform, terete, (8–) 10–28 (–32) cm long, 0.6–1 mm diam., acuminate, not pungent, ±glabrous, green, with 8 longitudinal nerves each separated by a distinct furrow; pulvinus absent or occasionally rudimentary. Inflorescences simple or rudimentary racemes with axis to c. 1 mm long; spikes 15–60 mm long, 3.5–5 mm diam., flowers loosely arranged, light golden; bracteoles spathulate, 0.5 mm long; peduncles 3–7.5 mm long, ±sparsely appressed-hairy. Flowers 4-merous; calyx cupular, gamosepalous, ¼–⅓ length of corolla. Pods submoniliform, ±straight to shallowly curved, 4–20 cm long, 4–5 mm wide, thinly coriaceous-crustaceous to firmly chartaceous, glabrescent, light brown, marginal nerve yellow. Seeds longitudinal, oblong to elliptic or slightly ovate, 3–3.5 (–4) mm long, normally minutely pitted at centre; aril conspicuous, creamy white to brown.
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