Plants without conspicuous rhizomes. Culms 12–60 cm, 1–1.3 mm wide basally, 0.5–1 mm wide distally. Leaves: sheaths tight, green, fronts hyaline; ligules less than 2 mm, wider than long; widest leaf blades 1–3 mm wide, papillose adaxially. Inflorescences with 5–10 crowded spikes, 0.5–3 cm × 5–8 mm; proximal bracts to 1(–3) cm; spikes with 2–10 ascending perigynia. Pistillate scales hyaline or pale brown with green 1–3-veined center, ovate, 2.8–3.2 × 1.8–2.6 mm, body slightly shorter than to length of perigynium, apex acute to short-awned. Anthers 1.8–2.3 mm. Perigynia brown, abaxial face 7–15-veined proximally, otherwise veinless or obscurely veined, 3.3–4 × 1.8–2.3 mm, base of perigynium spongy, thickened and longitudinally striate adaxially, spongy region 0.7–1 mm, margins serrulate to subentire distally; beak 0.5–1 mm, apical teeth 0.1–0.3 mm. Stigmas straight or slightly twisted, 0.05 mm wide. Achenes ovate to circular, 1.6–2.7 × 1.5–2 mm.
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