Perennials, usually (5–) 10–30 (–40) cm tall, densely caespitose; rhizome short; stolons absent. Basal leaves numerous, usually 1.0–2.5 (–3.5) mm wide; cauline leaves 2–3 (–4); basal leaves ±acute to obtuse (not swollen); cauline leaves and bract acute, with margins ±densely papillose-serrulate. Lower bract subherbaceous or brownish membranous, shorter than or equalling inflorescence. Inflorescence nodding, rarely suberect, ±interrupted at base or not so, composed of clusters subtended by conspicuous middle bracts; middle bracts ovate-lanceolate, acuminate, membranous, ciliate. Tepals ±equal, glabrous, oblong-lanceolate, acuminate, brown, with indistinct paler margins distally. Stamens 6; style 0.2–0.4 mm long; stigmas 0.8–1.3 mm long. Capsules dark castaneous-brown, usually subacute. Seeds ±ellipsoidal, ±paler brown, (0.8–) 0.9–1.1 (–1.3) mm long, (0.5–) 0.6–0.7 mm wide; seed-coat distinct, forming a pale apex; appendage whitish-yellowish, 0.1 (–0.2) mm long, fibrillate.