Shrub or small tree to 4 m high, slender, diffuse and often weeping or sometimes bushy and low-spreading, resinous. Bark smooth or flaky, grey, dark grey or grey-brown. Branchlets slightly angular, brown, glabrous, with conspicuous lenticels; ridges inconspicuous. Phyllodes straight to ±curved, terete to subterete, 2.5-15.6 cm long, 0.5-1 mm wide, with rounded margins, coriaceous, glabrous, with conspicuous stomata; nerves obscure or midnerve and lateral 2 longitudinal nerves semiprominent; gland 1 or absent, basal, to 2.6 mm above pulvinus. Spikes 0.9-3.2 cm long, yellow. Flowers 5-merous; calyx 0.5-0.8 mm long, dissected for 1/2-4/5, thin, glabrous; corolla 0.9-1.4 mm long, dissected for 2/5-3/5, glabrous; ovary glabrous. Pods erect, mostly linear-oblanceolate to ±linear, basally tapered, straight-sided, slightly biconvex to almost subterete, 3-10 cm long, 3-8 mm wide, woody, ±longitudinally nerved, opening elastically from apex. Seeds longitudinal or slightly oblique, oblong-elliptic, 4.3-6 mm long, dark brown; areole open; funicle-aril narrowly conical.
Grows on sandy flats, rocky hills and in rocky watercourses, in savannah woodland and eucalypt shrubland, often with spinifex.
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