Rhizome short. Culms up to 30 cm tall, slender, triquetrous, shortly bracteate or bractless sheathed at base, sheaths dark purple, sometimes disintegrating into fibers. Leaves shorter than culm, blades 2.5-3 mm wide, soft, both surfaces or abaxial side scabrous. Involucral bract leaflike, longer than spike, shortly sheathed. Spikes 3 or 4; terminal spike male, lower than or surpassing adjacent female spike, narrowly obovate or sublinear, ca. 5 mm, shortly pedunculate, lower spikes remote; lateral spikes female, oblong, 0.8-2 cm, laxly 3-or 4-flowered, rarely 5-or 6-flowered, slightly long pedunculate. Female glumes pale, greenish at middle, oblong or oblong-ovate, ca. 3.5 mm, membranous, 3-veined, apex mucronate or shortly awned. Utricles gray-green, nearly erect, longer than glume, elliptic or obovate-elliptic, trigonous, 5-6 mm, brown punctate, pubescent, 2-veined laterally and indistinctly thinly several veined, base abruptly contracted into a short stipe and apex into a short or long beak, orifice 2-toothed. Nutlets broadly elliptic, trigonous, ca. 3.5 mm, base with tortuous stipe, apex concave; style short, base slightly thickened; stigmas 3. Fl. and fr. Apr-Jun.
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