Perennials up to 15 cm long, sparsely hairy to glabrescent, loosely caespitose, with branched creeping or ascending thin rhizome and ascending stolons. Basal leaves canaliculate, up to 5–7 cm long, up to 1.5–2.0 mm wide, subabruptly narrowing to acute tip; plant base brownish to purplish, slightly lustrous; cauline leaves 1 (–2), usually 1.5–2.0 (–3.0) cm long, to 1.2 mm wide; stem thin, usually less than 0.5 mm in diam. below inflorescence. Lower bract membranous, often suffused brownish, 3–5 mm long, ciliate above. Inflorescence lax, corymbose, composed of (3–) 5–15 small glomerules; peduncles smooth, thin, c. 0.2 mm long, arcuate and nodding, up to 1.5–2 cm long, often branched (secondary branches usually 1–3); glomerules c. 4 × 3.5–6 mm, usually (1–) 2–5 (–8)-flowered, often with some flowers with visible peduncles. Bracteoles 1.0–1.2 mm long, ovate, brownish below, scarious and fimbriate-ciliolate above. Tepals ±equal; outer tepals acuminate; inner tepals ±mucronate or acute, deep brown, usually 2.0–2.2 mm long. Stamens 6; anthers 0.4–0.6 mm long; filaments c. 0.3 mm long; style 0.4–0.5 mm long; stigma 1.1–1.3 mm long. Capsule ovoid to ellipsoidal, slightly mucronate, shorter than or equalling tepals; capsule segments ovate, 1.7–1.9 × 1.1–1.2 mm, dark brown above. Seeds brown to pale brown, ellipsoidal, 1.0–1.1 × 0.6 mm, apically darker, apiculate, basally fibrillate. 2n=36, 42, 48, cf. Dawe & Murray, Canad. J. Bot. 59: 1373–1374 (1981); H.Nordenskiöld, Bot. Not. 1949: 85–86 (1949).