T: Tibet Oriental, Province de Moupine [Baoxing], A.David s.n.; holo: P; iso: W.
Perennials, 5–60 cm tall, densely caespitose; rhizome short. Stems erect, terete, 0.5–1.2 mm thick. Cataphylls 2–3, loose, brown to castaneous, shining. Basal leaves 1–2, terete, unitubular, septate; septa usually visible externally, 2–20 cm long; apex obtuse; cauline leaf single, rarely absent, inserted about the middle of stem, with conspicuous sheath; blade 0.5–1.5 (–4) cm long; sheaths 0.8–3 cm long; auricules large, brownish, obtuse, 0.7–1.4 mm long. Bracts lanceolate to ovate lanceolate, 0.5–1.3 cm long, 1.5–5 mm wide, ribbed and shortly aristate; lower bract as long as flowers or slightly longer, stramineous or brown. Inflorescence a terminal dense subglobose 10–25-flowered head. Flowers 0.8–1.3 cm long, with pedicels 0.5–5 mm long. Tepals equal, lanceolate, 4.7–6 (–7.6) mm long, 1–1.5 mm wide, subacute, ivory white or sometimes with brownish apex. Stamens 6, exserted, 6–8 mm long; anthers linear elliptic, white, 2–2.5 (–3.0) mm long, shorter than 4–5.5 mm long filaments; style 1.5–2.5 mm long; stigmas (0.5–) 0.8–1.1 mm long, with lobes stout; ovary 2.5–3 mm long, 0.5–0.8 mm wide, ivory white. Capsules ellipsoid-trigonous, 4.0–5.3 (–6.9) mm long, incl. a c. 1 mm long exserted rostrum, 1.4–1.8 mm wide, pale. Seeds brown, 0.8–1.0 mm long, 0.25–0.3 mm wide, c. 1.7–2.2 mm long including c. 0.4–0.5 mm long appendages.