Herbs, perennial, 10–20 dm. Rhizomes long- creeping. Culms erect, 2–5 mm diam. Cataphylls several. Leaves: blade absent. Inflorescences lateral, many flowered, loose; primary bract barely exceeding to many times longer than inflorescence. Flowers variously pedicellate; bracteoles membranous; tepals greenish to pale brown, lanceolate, 3.5–5 mm; inner series loosely subtending capsule at maturity, usually slightly shorter, margins scarious to clear, acutish; stamens 6, filaments 0.3–0.9 mm, anthers 1–2.5 mm; style 1–1.5 mm. Capsules dark brown, 3-locular, oblate to narrowly ovoid, 3–4 mm, nearly equal to perianth. Seeds dark amber, oblate to ellipsoid, 0.5–0.8 mm.
Phenology: Flowering and fruiting summer.
Habitat: Moist or wet exposed areas
Elevation: 100–1800 m