Rhizomatous, erect perennial, herb, 0.4-0.6 m high. Fl. red-brown, Dec or Jan. Sand, peat. Swamps.
Beard’s Provinces: South-West Province.
IBRA Regions: Jarrah Forest, Warren.
IBRA Subregions: Southern Jarrah Forest, Warren.
Local Government Areas (LGAs): Augusta Margaret River, Bridgetown-Greenbushes, Denmark, Manjimup, Nannup, Plantagenet.
Rhizomes tufted, hairy. Basal sheath glabrous, dull, striate. Culms semi-terete or semi-flattened, internal structure (at base of culm) hollow at base only, glabrous, striate, not marbled, not fasciculate. Culm 210-870 mm long. Sheaths (including blade) appressed throughout, dull, striate, glabrous, margins not translucent. Apex elongated, glabrous. Dioecious (with separate male and female plants). Male and female inflorescences distinctly dissimilar, posture (male inflorescences only) More or less erect, Culms unbranched below the inflorescence. Male spikelet 3-6 mm long. Subtending bract glabrous, Outer bract 1.2-3.2 mm long, margins firm and opaque, Apex acute. Perianth glabrous. 2.2-3 mm long. Inner bract glabrous, margins firm and opaque, Apex acute. Inner bract 2.7-3.4 mm long. Filament 1.4-2 mm long. Anther 1.2-1.3 mm long. Female spikelet 3.5-5.5 mm long. Subtending bract hairy, margins thin and translucent, Apex obtuse. Outer bract 2-2.6 mm long. Perianth glabrous. 2.5-3.2 mm long. Inner bracts 2.3-2.5 mm long, hairy, margins firm and opaque, Apex acute or obtuse. Style two (or two-branched). 4-4.5 mm long. Fruit bilocular (capsule). Flowering Time January or December. Botanical Province South-West, IBRA Bioregions Jarrah Forest.
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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/