Robust dense tussocks to 90 cm high; tillers intravaginal. Stems ± terete, slender, smooth, drooping. Leaves 3-6 mm wide, ± = stems, shallowly channelled, light green; sheaths shining dark brown. Inflorescence a drooping panicle with long-peduncled spikes in fascicles of 1-5 from each node; bracts leaf-like, conspicuous but < inflorescence. Male spikes 1-3-(4), 2-7 cm × 1.5-2 mm, usually wholly male but occasionally with a few female flowers interspersed; glumes narrow-oblong. obtuse, occasionally short-awned. Female spikes 2.5-3-(6) cm × 4-7 mm, on extremely long, drooping, filiform peduncles, dense-flowered, occasionally with male flowers at top; glumes ± = utricles, 5.5-6.5 mm long, hyaline, light brown. Utricles ± 6 × 2 mm, ± nerved, margins scabrid in upper half, fusiform, beak 1-1.5 mm long, bifid, stip ± 0.5 mm long. Stigmas 3. Nut trigonous, obovoid.
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