Subshrub 15–30 cm high, spreading by subterranean runners. Branchlets prominently ribbed, normally appressed-puberulous, but hairs sometimes sparse and mostly confined to ribs. Stipules indurate, sometimes spinose, 1.5–3 mm long. Phyllodes inequilateral, usually obtriangular to obdeltate with a prominent gland-bearing angle on adaxial margin above the middle, obliquely truncate, with adaxial proximal margin often ±congruent with branchlet, 5–12 mm long, 4–10 mm wide, ±undulate, ±pungent, often slightly shiny, glabrous to sparsely puberulous; midrib prominent and near abaxial margin. Inflorescences apparently simple, normally 1 per axil; peduncles 4–8 mm long, appressed-puberulous, sometimes subglabrous; heads globular, usually 6–9-flowered, golden; bracteoles acuminate; buds abruptly constricted at apices, acute. Flowers 4-merous; sepals ½–¾-united, with triangular lobes. Pods narrowly oblong, shallowly curved, to 5 cm long, 4–5 mm wide, crustaceous, glabrous; margins thickened. Seeds longitudinal, oblong-ovate, shiny, greenish grey; aril small.
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