Culms often spreading or reclining, 2–25 cm × 0.3–1 mm. Leaves: apex of distal leaf sheath acute to acuminate, tooth sometimes present, to 0.2 mm. Spikelets ovoid, 2–7 × 1–4 mm, apex subacute; proximal scale either with flower or empty, base encircling 1/2 of culm; floral scales 50–100, 10 per mm of rachilla, orange to purple-brown, ovate, 1–1.5 × 0.8 mm, midrib slightly keeled, apex rounded to acute. Flowers: perianth bristles absent; stamens 2(–3); anthers yellow, 0.2–0.3 mm; styles 2-fid or some 3-fid. Achenes 0.7–1 × 0.6–0.9 mm. Tubercles deltoid 0.1–0.2 × 0.25–0.45 mm, 1/3–1/2 as high as wide, 1/8–1/4 as high and 3/4–9/10 as wide as achene.
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