Perennials 30–90 cm tall, loosely caespitose; rhizome ascending; stolons short, ascending, less often absent. Basal leaves 10–20 cm long, usually 5–10 mm wide; cauline leaves (3–) 4–5, 3–10 mm wide. All leaves with papillose-serrulate margins; apex acute. Lower bract herbaceous or brownish membranous, usually 1.5–4.0 cm long, shorter than inflorescence. Inflorescence usually lax, sometimes nodding, with some main branches to 13 cm long, often arcuate; flowers borne singly. Bracteoles subglabrous to sparsely ciliate, ovate, membranous. Tepals equal, glabrous, ±lanceolate, 1.8–2.3 (–2.5) mm long. Stamens 6; anthers 0.3–0.6 mm long, as long as or shorter than filaments. Capsule smooth above. Seeds ±ellipsoid, brown to dark brown, 1.0–1.4 mm long; base fibrillate.