Shrub to tree, 3–12 m high. Bark fissured or shaggy-furrowed. Upper branchlets angled towards apices, otherwise terete, smooth, sometimes red-squamulose, often pruinose. Phyllodes somewhat dimorphic, very narrowly elliptic, falcate, 7.4–16.8 cm long, 15–30 mm wide, coriaceous, red-squamulose when young, with 3 main prominent and 2 subprominent veins continuous to base; minor veins rarely anastomosing, 3–7 per mm; gland 1, 1–3 mm above pulvinus. Spikes (1–) 2–3.5 cm long, pale yellow. Flowers 5-merous; calyx 0.4–0.6 mm long, 10% dissected , with pale yellow-or white-hyaline hairs on tube (especially near base) and minute red-resin hairs on lobes (mainly at apices); corolla 1.6–2 mm long, divided almost to base, glabrous; ovary densely white-pubescent. Pods linear, slightly constricted and raised over seeds, 2–6.5 cm long, 3–4 mm wide, thinly coriaceous, glabrous. Seeds longitudinal, oblong-elliptic, 3–4.5 mm long, black; areole open.
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