Shrub or tree 1–15 m high. Bark flaky or fissured, greyish brown. Branchlets terete, pubescent, later glabrous; ridges indistinct. Phyllodes very narrowly elliptic to linear, markedly falcate, 15–22 cm long, 6–12 (–14) mm wide, with conspicuous yellowish margins, coriaceous, stiff, silvery-velvety when young, later sparsely pubescent and with dense white scurfy bloom, finely multistriate, with 1–3 veins more prominent, not visibly anastomosing; glands 2; apical gland prominent; basal gland inconspicuous. Peduncles 3–6 mm long, densely pubescent. Spikes 1–4 on short pubescent axillary axes which often grow into leafy shoots, 1.3–3.2 cm long, dense, bright yellow. Flowers 5-merous; calyx 0.7–1 mm long, dissected to ¼–⅕, pubescent especially on ribs, with obtuse lobes; corolla twice as long as calyx, dissected to ½, glabrous. Pods linear, raised over and constricted between seeds, 5–11 cm long, 2–3 mm wide, sparsely pubescent. Seeds longitudinal, oblong, 3–4.5 mm long, brown.
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