Perennials, 6–19 cm tall, caespitose; rhizome very short. Stem erect, terete. Cataphylls 2–3, loose, brown; basal leaves ±bitubular, grooved on both adaxial and abaxial sides, 2–11 cm long; leaf sheath 1–4 cm long. Cauline leaves absent, sometimes single, inserted in lower or upper part of stem, linear, 1.5–3.0 cm long, not exceeding inflorescence; auricles obtuse, 0.7–1.0 mm long. Lower bract exceeding inflorescence, acicular-lanceolate, 0.5–1.5 cm long, 1–2 mm wide, brownish green. Inflorescence a single terminal hemispherical head, usually 3–7-flowered, 1.0–1.5 cm wide; flower bracts lanceolate, 2–4 mm long, 0.5–2 mm wide, brown. Flowers 4–8 mm long, 6–12 mm wide; pedicels 0.3–0.5 mm long. Tepals ±equal, lanceolate, subacute, 3–6 mm long, 1–1.7 mm wide, white, later whitish-stramineous. Stamens 6, exserted, 5.8–8.8 mm long; anthers linear-elliptic, white, (1.2–) 1.8–2.5 mm long, twice as long as 4.0–6.1 mm filaments; style 1.3–1.8 mm long; stigmas 0.6–0.8 mm long. Capsule unilocular, narrowly obovoid-trigonous, acuminate, rostrate, 3.0–4.0 mm long incl. 0.6–1.1 mm rostrum, 1–1.5 mm wide, castaneous-brown, shining. Seeds [the Bhutan specimen] ellipsoid, 0.5–0.6 × 0.2 mm, or c. 0.8 mm including two minute appendages c. 0.1 mm long.