Rhizomatous, perennial, herb, 0.1-0.3 m high, spikelets many-flowered, on slender peduncles; culms broad, 1.2-2 mm wide, compressed; style single. Fl. brown. Deep white sand over laterite. Tall heath.
Rhizomes tufted, glabrous. Basal sheath glabrous, glossy, striate. Culms flattened or semi-flattened, internal structure (at base of culm) solid, glabrous, not striate, not marbled, not fasciculate. Culm 130-345 mm long. Sheaths (including blade) appressed throughout, dull, striate, glabrous, margins translucent. Apex elongated, glabrous. Dioecious (with separate male and female plants). Male and female inflorescences distinctly dissimilar, posture (male inflorescences only) Distinctly drooping, Culms unbranched below the inflorescence. Male spikelet 6-13 mm long. Subtending bract glabrous, Outer bract 3-6.2 mm long, margins firm and opaque, Apex acuminate to attenuate. Perianth glabrous. 3.5-4.3 mm long. Inner bract glabrous, margins thin and translucent, Apex acuminate to attenuate. Inner bract 3.2-4.5 mm long. Filament 3-3.3 mm long. Anther 0.5-0.9 mm long. Female spikelet 8-10 mm long. Subtending bract glabrous, margins thin and translucent, Apex acuminate to attenuate. Outer bract 8-10 mm long. Perianth glabrous. 7-7.5 mm long. Inner bracts 9-10 mm long, glabrous, margins thin and translucent, Apex acuminate to attenuate. Style one, arising centrally from the ovary apex. 3.5 mm long. Fruit indehiscent (nut). Flowering Time August, September or October. Botanical Province South-West, IBRA Bioregions Geraldton Sandplain. Conservation Code Priority Two (P2).