Herbs, perennial, cespitose, rhizomatous. Culms terete or distally rounded-trigonous. Leaves basal; ligules present; blades flat. Inflorescences terminal, spicate; involucral bracts several, suberect, proximal leaflike, distal scalelike; spikelets 2–25 per spike. Spikelets: scales 2–5, lateral spikelets spirally arranged, each subtending flower, terminal spikelets pseudodistichous. Flowers bisexual; perianth bristles (0–)3–5(–6), barbed, shorter than achene; stamens 3; styles linear, 2-fid, base persistent. Achenes biconvex or plano-convex. x = 20.
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