Shrub or tree to 4 m tall. Bark smooth, red-brown or grey. Branchlets angular, olive-green or brown, with the 4 angles raised, yellowish. Phyllodes narrowly elliptic or oblanceolate, flat, 5–13.5 cm long, 8–33 mm wide, narrowed and curved upwards near base, with 2 or 3 conspicuous main nerves tending to be confluent near lower margin at base; minor nerves 4–6 per mm, longitudinal, rarely anastomosing; gland 1, prominent, circular, basal. Spikes single or paired, or often in terminal panicles owing to upper phyllode loss, 1–5 cm long, bright yellow. Flowers 5-merous; calyx 0.8–1.2 mm long, dissected to ⅓–½ of length, densely pubescent, persistent after fruit initiation; corolla 1.5–2 mm long, dissected to ¼–½ of length, glabrous; ovary densely pubescent. Pods clustered in upper axils, linear, flat, slightly constricted between seeds, 2–6 cm long, tapering towards base and apex, thin, glabrous, resinous. Seeds longitudinal, oblong-or broadly elliptic, 3–4 mm long, ±black; areole open, narrow.
Grows usually in shallow stony soils in Northern Territory and much of Queensland, but on more loamy soils S of Charters Towers, Queensland.
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