Rhizomatous, erect perennial, herb, 0.4-1 m high. Fl. brown, Jul to Dec. Sandy clay or sand with lateritic gravel, sandy alluvium. Lateritic ridges, winter-wet flats.
Beard’s Provinces: South-West Province.
IBRA Regions: Avon Wheatbelt, Esperance Plains, Geraldton Sandplains, Jarrah Forest, Mallee, Swan Coastal Plain, Warren.
IBRA Subregions: Avon Wheatbelt P2, Dandaragan Plateau, Fitzgerald, Lesueur Sandplain, Northern Jarrah Forest, Perth, Recherche, Southern Jarrah Forest, Warren, Western Mallee.
Local Government Areas (LGAs): Albany, Augusta Margaret River, Beverley, Boddington, Brookton, Carnamah, Cranbrook, Cuballing, Esperance, Gnowangerup, Goomalling, Jerramungup, Murray, Nannup, Narrogin, Northam, Pingelly, Plantagenet, Ravensthorpe, Swan, Victoria Plains, West Arthur, Wickepin, York.
Rhizomes spreading, hairy. Basal sheath hairy, dull, striate. Culms terete, internal structure (at base of culm) hollow, hairy, striate, not marbled, not fasciculate. Culm 360-790 mm long. Sheaths (including blade) appressed throughout, dull, striate, hairy, margins not 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 5-6 mm long. Subtending bract glabrous, Outer bract 2.8-3.2 mm long, margins firm and opaque, Apex acuminate to attenuate. Perianth glabrous. 2.5-3.3 mm long. Inner bract glabrous, margins firm and opaque, Apex acuminate to attenuate. Inner bract 2.6-3 mm long. Filament 1.7-2.5 mm long. Anther 1.5-2 mm long. Female spikelet 9-12 mm long. Subtending bract hairy or glabrous, margins firm and opaque, Apex acuminate to attenuate. Outer bract 5.3-9 mm long. Perianth glabrous. 8-9.5 mm long. Inner bracts 6.8-9.2 mm long, glabrous, margins thin and translucent, Apex acuminate to attenuate. Style one, arising centrally from the ovary apex. 7-8 mm long. Fruit capsule. Flowering Time July, August, September, October, November or December. Botanical Province South-West, IBRA Bioregions Geraldton Sandplain, Swan Coastal Plain, Avon Wheatbelt, Jarrah Forest, Mallee, Warren or Esperance.
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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/