Plants annual, densely cespitose; rhizomes obscured among culm bases, 0.2 mm thick, internodes to 4 mm, scales not evident. Culms mostly ascending, 4-angled, sulcate, 5 cm × 0.1–0.2 mm, soft. Leaves: distal leaf sheaths persistent, colorless, translucent, apex narrowly acute. Spikelets ovoid, 2–3 × 1–2 mm, apex blunt; floral scales 10–30, ca. 10 per mm of rachilla, orange-brown to stramineous with broad colorless margin, midrib region stramineous, lanceolate, folded lengthwise, 1.5–2 × 0.8–1 mm, midrib prominent, apex acuminate. Flowers: perianth bristles absent; anthers 0.7–1.2 mm. Achenes whitish, broadly obpyriform, much less than 2 times longer than wide, angles and longitudinal ridges ca. 6, obscure, 0.4 × 0.3 mm, apex blunt, trabeculae 20, indistinct, crowded. Tubercles brownish, not appressed, mostly pyramidal, 0.1 × 0.1 mm.
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