Rhizomatous, spreading perennial, herb (sedge-like), 1-1.2 m high. Fl. Sep to Nov. Black sand, clay. Creek edges.
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): Augusta Margaret River, Busselton, Denmark, Harvey, Manjimup, Nannup, Waroona.
Rhizomes spreading, glabrous. Basal sheath glabrous, dull, striate. Culms terete, internal structure (at base of culm) hollow, glabrous, not striate, marbled, not fasciculate. Culm 290-690 mm long. Sheaths (including blade) spreading, dull, not striate, glabrous, margins translucent. Apex elongated, glabrous. Dioecious (with separate male and female plants). Male and female inflorescences similar, posture (male inflorescences only) More or less erect, Culms unbranched below the inflorescence. Male spikelet 3.4-4 mm long. Subtending bract glabrous, Outer bract 1.6-3.5 mm long, margins thin and translucent, Apex acute. Perianth glabrous. 1.2-2.5 mm long. Inner bract glabrous, margins firm and opaque, Apex acute. Inner bract 1.6-1.8 mm long. Filament 1-1.1 mm long. Anther 1.2-1.5 mm long. Female spikelet 3-6 mm long. Subtending bract glabrous, margins firm and opaque, Apex acute. Outer bract 1.6-3.5 mm long. Perianth glabrous. 3.3-3.5 mm long. Inner bracts 3.5-3.8 mm long, glabrous, margins firm and opaque, Apex acute. Style three (or three-branched). 3.5-4.5 mm long. Fruit trilocular (capsule). Flowering Time September, 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/