Tree or rarely a shrub (2.5–) 4–8 m tall. Bark fibrous or shaggy, brown to black. Branchlets terete, reddish brown, resinous. Phyllodes narrowly elliptic or oblanceolate, flat, straight or slightly curved, 9–18.5 cm long, 6–14 mm wide, thinly coriaceous, glabrous, shiny; midrib and two secondary nerves more prominent; minor nerves 4–8 per mm, parallel, anastomoses absent; gland 1, basal, inconspicuous. Spikes 1 or 2 per axil, 5–7 cm long, bright yellow to golden. Flowers 5-merous; receptacle, calyx, corolla tube and base of lobes densely tomentose with yellow or rarely hyaline hairs; sepals free, 0.45–0.9 mm long; corolla 0.9–1.4 mm long, dissected to ½ its length; ovary densely sericeous. Pods linear to oblong, straight, undulate, raised over seeds alternately on each side, 7–9 mm wide, straw-coloured, transversely reticulate, resinous. Seeds transverse, obloid or ellipsoidal, brown or black, arillate; pleurogram with pale halo; areole closed, depressed, paler than seed.
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