Plants not cespitose; short-rhizomatous. Culms 10–40 cm, triangular, scabrous distally Leaves plane, 1.5–3 mm wide, equaling culms. Spike with staminate portion separated from pistillate portion by short but conspicuous internode, with pistillate portion 0–2 branched, 5–23 × 1.3–2.3 mm. Pistillate scales green, proximal foliaceous, long-awned. Staminate scales green to pale brown, apex obtuse to acute. Anthers 1.9–3 mm. Perigynia 1–5, light green to brownish green, with 2 strong marginal veins, otherwise veinless, 5–6 × 2.5–3 mm.
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