Herbs, perennial (rarely annual), densely cespitose. Culms 15–40 cm. Leaves to 1/2 scape length; sheaths abaxially glabrous or ribs hirtellous; blades filiform 0.05 mm wide, glabrous or with margins and abaxial ribs hirtellous. Inflorescences in compound anthelae, open or dense; scapes narrowly linear, glabrous, less often hirtellous; longest involucral bract mostly exceeding inflorescence. Spikelets 10+, 3–6 mm; fertile scales red-brown to pale brown, ovate, acute, glabrous or puberulent, midrib excurrent forming short mucro. Flowers: stamens 2–3; anthers 1 mm. Achenes 1 mm. 2n = 60.
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