Rhizomatous, erect perennial, herb, 0.2-0.8 m high. Fl. brown, May to Aug. White sand. Dry or seasonally wet sites.
Beard’s Provinces: South-West Province.
IBRA Regions: Geraldton Sandplains, Swan Coastal Plain.
IBRA Subregions: Dandaragan Plateau, Lesueur Sandplain, Perth.
Local Government Areas (LGAs): Carnamah, Chittering, Coorow, Dandaragan, Gingin, Swan, Wanneroo.
Rhizomes tufted, hairy. Basal sheath hairy, dull, striate. Culms terete, internal structure (at base of culm) hollow, hairy or glabrous, striate, not marbled, not fasciculate. Culm 390-1200 mm long. Sheaths (including blade) spreading, dull, striate, glabrous, margins not translucent. Apex elongated, glabrous. Dioecious (with separate male and female plants). Male and female inflorescences similar, posture (male inflorescences only) Distinctly drooping, Culms unbranched below the inflorescence. Male spikelet 5.5-9 mm long. Subtending bract glabrous, Outer bract 3-6 mm long, margins thin and translucent, Apex acute. Perianth glabrous. 4-4.5 mm long. Inner bract glabrous, margins thin and translucent, Apex acute. Inner bract 6-6.3 mm long. Filament 1.7-3.5 mm long. Anther 2-2.6(-2.8) mm long. Female spikelet 5.5-7 mm long. Subtending bract hairy, margins thin and translucent, Apex acuminate to attenuate. Outer bract 2-4.2 mm long. Perianth glabrous. 4-5 mm long. Inner bracts 4-5.5 mm long, glabrous, margins thin and translucent, Apex acuminate to attenuate. Style two (or two-branched). 2.2 mm long. Fruit bilocular (capsule). Flowering Time May, June, July or August. Botanical Province South-West, IBRA Bioregions Geraldton Sandplain or Swan Coastal Plain.
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Western Australian Herbarium (1998–). FloraBase—the Western Australian Flora. Department of Biodiversity, Conservation and Attractions. https://florabase.dpaw.wa.gov.au/