Harsh spreading shrub 0.4–1.3 m tall. Branchlets stout, green, finely yellow-ribbed, usually glabrous, with numerous lenticels (observed at ×10 mag.). Stipules spinose, 2.5–5 mm long, straight or shallowly recurved. Phyllodes sessile, patent to ascending, straight or shallowly curved, sometimes slightly kinked at the gland, pentagonal in section, 20–45 mm long, c. 1.5 mm diam., pungent, rigid, thick, green, usually glabrous, 5-nerved; gland 1–5 mm above base, 1–2 mm long. Inflorescences rudimentary 2–4-headed racemes with axes greater than 0.5 mm long; peduncles 3–5 mm long, yellow to light brown, glabrous, often recurved in fruit; heads globular, c. 25-flowered, golden. Flowers 5-merous; sepals ½–¾-united. Pods (mostly immature) linear, to 9 cm long, c. 4.5 mm wide, crustaceous, blackish, usually glabrous. Seeds (immature) longitudinal; aril pileiform.
Grows in sand or loam, often near granite rocks or salt lakes, in Eucalyptus woodland or mallee communities.
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