Spreading, multi-stemmed shrub commonly 2–5 m tall, sometimes an obconic tree to 4–6 (–7) m, stems and branches often somewhat crooked. Branchlets minutely appressed-puberulous and obscurely ribbed at extremities, the ribs often with a layer of translucent resin; new shoots resinous, with scattered red-brown glandular hairlets. Phyllodes incurved or sigmoid to sinuous, normally terete, 4–7 (–9) cm long, 0.8–1.1 mm diam., green to grey-green with bluish tinge, longitudinal nerves numerous and obscure; gland 0–3 mm above the pulvinus, phyllode normally swollen, curved upwards and/or ±kinked at gland. Inflorescences simple; peduncles 5–15 mm long, ±glabrous; spikes 10–20 mm long. Flowers 5-merous; sepals free or shortly united at base, ½–⅔ length of petals; petals 1.3–1.5 mm long. Pods oblong to narrowly oblong, (1.5–) 2–7 (–10) cm long, 12–22 mm wide, thinly coriaceous, flat or undulate, slightly to obviously rounded over the seeds, normally yellow to light brown and glabrous, resinous; margins rimmed by a thick, resinous nerve. Seeds transverse, oblong to elliptic or round, compressed, 7–9.5 mm long, 5–7 (–8) mm wide; aril small.
Mostly found in clay or loam associated with calcrete, often on floodplains or shallow drainage systems, in open mixed Mulga communities with ground cover comprising grasses (e.g. Aristida contorta, Enneapogon polyphyllus) or low shrubs such as Ptilotus spp. or Eremophila spp.
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