Rhizome shortly creeping, stout, woody. Stems loosely tufted, trigonous, scaberulous below the nodes to almost smooth, 30-130 cm by 1.5-3 mm, the base clothed with fuscous, bladeless sheaths and comose by their fibrous remains. Leaves subcoriaceous, subbasal and 1-2 higher on the stem, exceeding the stems, linear, long-attenuate, flat or with revolute margins, scabrid on the margins in the upper part, pale green, 5-10(-15) mm wide. Inflorescence a pale, compound, erect, much interrupted, narrow, 10-40 cm long panicle; secondary panicles 2-4, single at the nodes, erect, lanceolate or oblong, very dense, distant, up to 10 cm long; peduncles smooth or scaberulous, the lower ones much exserted from the sheaths, the upper ones scarcely so; rachis hispid. Lower bracts foliaceous, exceeding the inflorescence, long-sheathing, hispidulous in front or at the mouth, upper reduced. Spikelets androgynous, sessile, suberect, 5-15 mm long, the female part few-flowered, rather shorter than the male part. Glumes oblong or oblong-ovate, thinly membranous, obtuse or slightly emarginate, slenderly nerved, glabrous or sparsely hispidulous, not ciliate, pale stramineous to whitish, 2-2¾ mm long, the midnerve excurrent into an antrorsely scabrid, ¾-2 mm long awn. Utricles distinctly trigonous, rhomboid-ellipsoid, with prominent angles and flattish faces, membranous, not inflated, patulous, many-nerved (nerves 5-7 on each face), glabrous, straight to slightly recurved, curved-tapering below into a cuneate basal part, suddenly narrowed above into the beak, greenish to light brown, 4-5 by c. 1½ mm; beak straight or slightly curved, often somewhat inflated at the base, glabrous or very sparsely scabrid, 1.5-2 mm long; mouth dorsally very oblique, not bidentate. Nut trigonous, rhomboid-ellipsoid, erostrate, curved-tapering below into a stout cuneate part, with prominent angles and concave faces, brown, 2.25-3 by 1½-1.8 mm. Style-base pyramidally thickened, persistent on the nut. Stigmas 3.
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Rhizome long, obliquely elongate, woody. Culms tufted, 30-75 cm, bluntly trigonous, smooth. Leaves basal and cauline, nearly as long as culms, flat, 1-2 mm wide; persistent sheaths dark brown, fibriform. Involucral bracts leafy, longer than inflorescence branches, long sheathed. Panicle compound, 20-30 cm, 3-5-branched; inflorescence branches single, triangular-ovate, 5-7.5 × 4-5 cm; peduncles of inflorescence branches rigid, trigonous, scabrid on edges; inflorescence axes sharply trigonous, hairy; bractlets glumelike, with long awns. Spikes numerous, bisexual, androgynous, arising from cladoprophylls, dense, obliquely patent, oblong, 10-12 mm; male part of spike longer than female part, with over 10 flowers; female part with over 10 flowers; male glumes pale yellow, oblong-lanceolate, 3-4 mm, papery, apex obtuse and mucronate; female glumes stramineous when dried, slightly shining, ovate-oblong, 2.5-3 mm, papery, 3-veined, margins hyaline, apex obtuse or rounded with short awns. Utricles brownish green, longer than glumes, oblong or ovate-oblong, trigonous, slightly inflated, ca. 3.5 mm, many veined, subsessile, apex contracted into long beak, orifice obliquely truncate. Nutlets broadly ovate, trigonous, 2.5-3 mm; style base thickened; stigmas 3.
A sedge. It has a long rhizome. The stems are tufted and 30-75 cm tall. They are 3 sided. The leaves are flat and 1-2 mm wide. It has a compound flower panicle 20-30 cm across and 3-5 branched. There are many spikes. The seeds are oval and 3 sided. They are 3 mm across.
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