Rhizome short. Culms densely tufted, 20-55 cm tall, slender, compressed trigonous, smooth, clothed at base with bladeless sheaths. Basal leaves shorter than culm, scabrid on both surfaces. Inflorescence 1-spiked, terminal, androgynous, long cylindric, 2.5-3 cm; male part shorter than female part, 5-7-flowered; female part loosely 8-12-flowered. Female glumes pale yellow, ovate or lanceolate, ca. 4 mm, costa green, apex mucronate to shortly awned. Utricles obliquely patent, longer than glume, lanceolate, trigonous, ca. 6 mm, herbaceous, glabrous, abaxially distinctly slenderly many veined, apex gradually attenuate into a short beak ca. 1 mm, orifice slightly emarginate. Nutlet ellipsoid, trigonous, ca. 2.5 mm; stigmas 3. Fr. Jun.
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