Beard’s Provinces: South-West Province.
IBRA Regions: Jarrah Forest, Swan Coastal Plain, Warren.
IBRA Subregions: Northern Jarrah Forest, Perth, Southern Jarrah Forest, Warren.
Local Government Areas (LGAs): Albany, Armadale, Augusta Margaret River, Bayswater, Boddington, Boyup Brook, Bridgetown-Greenbushes, Busselton, Capel, Collie, Cranbrook, Dardanup, Denmark, Donnybrook-Balingup, Harvey, Manjimup, Murray, Nannup, Plantagenet, Serpentine-Jarrahdale, Swan, Waroona, West Arthur.
Rhizomes tufted, hairy. Basal sheath hairy, glossy, striate. Culms terete, internal structure (at base of culm) hollow, glabrous, striate, not marbled, not fasciculate. Culm 800-1180 mm long. Sheaths (including blade) 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 6-8 mm long. Subtending bract glabrous, Outer bract 1.5-2.5 mm long, margins thin and translucent, Apex acute. Perianth glabrous. 1.5-1.6 mm long. Inner bract glabrous, margins thin and translucent or firm and opaque, Apex acute. Inner bract 1.5-2.5 mm long. Filament 0-0.2 mm long. Anther 0.7-1.2 mm long. Female spikelet 3-5 mm long. Subtending bract glabrous, margins thin and translucent, Apex acuminate to attenuate. Outer bract 1.1-2.6 mm long. Perianth glabrous. 1.5-1.8 mm long. Inner bracts 1.2-1.8 mm long, glabrous, margins thin and translucent, Apex acuminate to attenuate. Style three (or three-branched). 2-2.4 mm long. Fruit indehiscent (nut). Flowering Time October or November. Botanical Province South-West, IBRA Bioregions Swan Coastal Plain, Jarrah Forest or Warren.
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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/