Rhizome short. Culms tufted, 15-30 cm tall, slender, pendent apically, trigonous, clothed at base with dark brown bladeless sheaths. Leaves shorter than culm, blades linear, 1.5-2 mm wide, flat, papillose abaxially. Spikes 2 or 3, gynaecandrous, with male part ca. 1/3 length of spike, approximate, or lowest spike distant, oblong, 10-20 × ca. 5 mm, densely flowered, slenderly pedunculate, pendent. Female glumes dark purple, oblong, 2.8-3.2 mm, densely minutely papillose, 3-veined green costa often forming a scabrous long awn at apex. Utricles yellow-green, slightly longer than glume, elliptic, compressed trigonous, 3.2-3.5 mm, membranous, densely finely granulose toward apex, apex abruptly contracted into a short beak, beak entire at purple orifice. Nutlets loosely enveloped, obovate-oblong, trigonous, base shortly stipitate; style base not thickened; stigmas 3. Fl. and fr. Jul.
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