Glabrous perennial or annual, to 55 cm. Stems erect to ascending, often branched above. Leaves usually linear, the largest 0.5-2.5 mm wide. Inflorescence cylindrical, spike-like; flowers in several-bracted clusters of 1-5, subsessile to shortly pedicellate; bracts imbricate, ovate, erose to lacerate. Hypanthium 0.4-0.9 mm long. Sepals 0.5-1.5 mm long, shallowly erose to serrulate. Corolla yellow-green, pale to deep yellow, sometimes brown on tube; tube 2-5.5 mm long; lobes 0.9-3.5 mm long, obtuse to acuminate. Gynoecium 3-partite. Cocci 1-3, pyriform to unequally dumb-bell shaped, slightly curved, 1.7-4 mm long, laterally rugose, apically sharply tuberculate (rarely in depauperate plants rugose), glabrous to puberulent; basal cavity deep, circular.
Grows in sandy and loamy soils, often with rocks or gravel, or in crevices, in sclerophyllous woodland and open grassy areas; in arid areas associated with spinifex; in the south and west of its range associated with granite outcrops.
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