Herbs, perennial, strongly tufted, to 4 dm. Rhizomes densely short-branched. Culms terete. Cataphylls several. Leaves: blade absent or rarely present, to 1 cm. Inflorescences 2--5-flowered, loosely compact; primary bract usually longer than inflorescence. Flowers pedicellate; tepals brown to chestnut brown with green midstripe, lanceolate or widely so, (4--)5--8 mm, margins clear; inner series loosely subtending capsule at maturity, shorter; stamens 6, filaments 0.7--1 mm, anthers 1.1--1.6 mm; style 0.2 mm. Capsules brown to chestnut brown, 3-locular, oblate, 4.5--7(--8) x 1.8--2.2 mm, nearly equal to or exceeding perianth. Seeds amber, body oblate, 0.5--0.6 mm.
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