Herbs, perennial, robust. Rhizomes long creeping, slender, apex with a small tuber. Culms ± tall, inconspicuously septate. Leaves ligulate; leaf blade linear. Involucral bracts leaflike, exceeding inflorescence. Inflorescence a large terminal anthela, with many spikelets. Spikelets small. Glumes spirally imbricate, each subtending a bisexual flower, deciduous. Perianth bristles 5 or 6, mostly longer than nutlet, retrorsely scabrous, deciduous with nutlet. Stamens 3. Style base not distinct, not thickened, persistent; stigmas 3. Nutlet obovoid to subellipsoid, compressed 3-sided, smooth, apex beaked.
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