Perennials, loosely tufted, subglabrous, bluish green, with horizontal rhizome. Stem 20–40 cm long; cauline leaves 3–4, usually 3–5 cm long, 3–6 mm wide; basal leaves up to 10 (–15) cm long, usually 4.5–6 mm wide; all leaves with distinctly acute tip, papillose-serrulate margins and sparse hairs near sheath. Inflorescence bracts straw-membranous or with reddish tinge; lower bracts up to 1.5 cm long, ciliate. Inflorescence up to 4–6 cm long, corymbose with 4–20 glomerules on capillary arcuate peduncles c. 0.2 mm in diam., each distally branched; glomerules usually 3–7-flowered. Bracteoles usually c. 1.5 cm long, ciliolate. Tepals equal, 1.7–2.1 mm long, 0.5–0.6 mm wide, ovate-lanceolate, acute, entire, dark brown. Stamens 6; anthers 0.3–0.6 mm long; filaments 0.5–0.7 mm long; style c. 0.3 mm long; stigmas c. 1.0 mm long. Capsule ovoid with subconical top, shorter than tepals; capsule segments dark brown, lustrous, 1.6–1.8 × 0.9–1.1 mm. Seeds narrowly ellipsoidal, 1.1–1.2 × 0.6 mm, medium brown, distally apiculate, with fibrillate base; appendage missing. 2n=24 [BL], H.Nordenskiöld, Hereditas 37: 330–331, 1951.