Perennial. Stems slender, smooth, (30-)45-120 cm by 1-3 mm. Leaves rather abruptly narrowed to the obtusish tip, glabrous to more or less villous by long white hairs, scabrid on the margins towards the apex, otherwise smooth, (2-)3-7 mm wide; sheaths narrow, wingless to rather broadly winged, smooth, villous by patent or retrorse hairs to glabrous except for the very short, rounded or truncate contraligule, which is bordered by a narrow membranous band. Inflorescence narrow, consisting of a terminal, lanceolate panicle and 1-2 distant fascicles of lateral panicles, the terminal panicle 1½-5 cm long, the lateral ones smaller, single or binate at the nodes, their peduncles short (or the lowest up to 10 cm exserted from the sheath), smooth; primary bracts erect, the uppermost as long as or slightly overtopping the inflorescence, secondary bracts setaceous, often slightly recurved. Spikelets unisexual; ♂ spikelets linear-lanceolate, 3-4½ mm long; stamens 3; anthers linear, c. 2 mm long; ♀ spikelets 4-5 mm long, the ♂ part reduced to a small empty glume or absent; glumes ovate, acute or mucronulate, stramineous with purplish or brownish sides, glabrous, smooth. Disk shallowly lobed, triangular, appressed to the nut and about as wide as it, thick, with c. ⅓ mm broad, reflexed margins, yellowish, the lobes with a short erect, subulate mucro. Nut somewhat shorter than to about as long as the glumes, ovoid, obtusely trigonous, not apiculate, rugulose or obscurely cancellate, sparsely pubescent, finally glabrescent, glossy, white, 2⅓-2½ by 2-21/5 mm.
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