Rhizome ligneous. Culms tufted, 20-30 cm tall, slender, obtusely trigonous, smooth. Leaves shorter than culm, blades ca. 2 mm wide, flat, slightly revolute at apex, scabrous on upper surface, sheathed, lower sheaths dark brown. Spikes several; terminal spike male, linear-clavate, ca. 2 cm, with peduncles; lateral spikes female, remote, cylindric, 1.5-2 cm × 4-5 mm, subdensely many flowered, with peduncles. Female glume yellow-brown, ovate or suboblong, ca. 3 mm, membranous, green 1-veined, apex obtuse, mucronate. Utricles yellow-green, suberect, longer than glume, narrowly elliptic or narrowly ovate, trigonous, ca. 4 mm, membranous, laxly hirsute, inconspicuously veined, base cuneate, shortly stipitate, apex abruptly contracted into a rather long beak, orifice 2-toothed. Nutlets tightly enveloped, elliptic, trigonous, ca. 2 mm, apex mucronate; stigmas 3.
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