Perennial herb, tufted, robust, up to 0.7 m high. Leaf blades 0.8-1.2 mm wide at middle, channelled (C-shaped), narrowed and ± solid towards apex. Culm ridged, terete, 1.0-1.2 mmin diam. Inflorescence a slender, oblong, interrupted panicle, 35-45 x 10-15 mm. Subtending bracts erect, longer than inflorescence, with slightly dilated, lanceolate bases, leaf-like. Spikelets narrowly elliptical, 8-15 mm long, of several, rather loosely packed glumes. Glumes lanceolate, keel excurrent into 0.2-0.5 mm long awn. Flowering time Sept.-Dec., Mar., June. Nutlet elliptic, including gynophore ± 2.5 mm long, 3-angled, dark reddish brown, shining, surface smooth. Gynophore relatively large, lobed.
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Tufted, erect perennial, up to 0.7 m tall. Leaf sheaths dark reddish brown. Inflorescence a slender, terminal, interrupted panicle, 35-45 x 10 mm, usually overtopped by erect basal bract. Glumes light brown, often with a darker central area. Sept.-Mar.(-June).
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