Perennial herb, tufted, robust, with thickened hard bases, up to 2 m high. Leaves: sheaths reddish brown, old outer sheaths separating into net-like strips (cancellate); blades 2-4 mm wide, V-shaped. Culm terete, ± 4 mm in diam. Inflorescence an erect panicle, with 1-several, peduncled, dense, rounded clusters of spikelets from each node, clusters with many aristate secondary bracts. Subtending bracts sheathing culm, blade well developed at lower nodes. Spikelets lanceolate, ± 10 mm long; flowers 2, lower male, upper bisexual. Glumes: fertile lanceolate, 7 mm long, keel excurrent into 1 mm long awn. Perianth of 6 short, linear, ciliate bristles. Flowering time (Aug.) Nov.-Feb. Nutlet shortly stalked, elliptic, including stalk ± 4 mm long, yellowish brown; style base small, blackish, pyramidal, surface minutely reticulate.
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Robust tufted perennial to over 1.5 m. Spikelets pinkish to dark brown.
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