Culms 5–60 cm. Leaves basal and cauline; proximal leaves reduced to sheaths; distal leaves with blades 3–6 mm wide. Inflorescences: spikes separate, elongate, 6–20 × 5–8 mm; lateral spikes 1–3, pendent, long-pedunculate. Pistillate scales dark brown or black, margins occasionally narrowly hyaline, midvein seldom prominent, same color as the body, inconspicuous, broadly lanceolate, shorter than or equaling and as wide as perigynia, apex acute. Perigynia brown or purple-brown, veinless, ovate, 3–3.5 × 1.75–2 mm, papillose; beak 0.3–0.4 mm, shallowly bidentate or truncate, sparsely papillose or smooth.
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