T: Mongolia, ditio Selenginskij, Schamar, in valle fl. Orchon, 15 Jul 1979, Z.G.Buevich 66/5432; holo: MW; iso: MW, LE.
Perennials, c. (30–) 40–50 (–60) cm tall, loosely caespitose; rhizome creeping, dark brown, c. 1.0–1.3 mm in diam.; internodes short; stem slightly compressed. Cataphylls 0–2; basal leaves 1–2; cauline leaves 2–3, ±flat to canaliculate, to c. 0.8–1.0 mm wide; sheaths with broad scarious margins; auricles scarious, broadly obtuse, to 0.4–0.5 mm long. Lower bract filiform, leaf-like, to c. 4 cm long, often ±equalling inflorescence. Inflorescence relatively dense, 2–5 cm long, decomposite, with c. 2–6 main branches, each with several dense unilateral cymes, c. 30–60-flowered; flowers borne ±singly. Bracteoles broadly ovate, ±membranous, 0.4–0.8 mm long. Tepals ±equal, ±ovate, obtuse-rounded, concave, c. 1.6–2.0 (–2.2) mm long; central band prominent, greenish to pale castaneous-brown, bordered castaneous; margins membranous to scarious, broad. Stamens 6; anthers 0.4–0.6 mm long; filaments 0.5–0.7 mm long; style c. 0.2 mm long; stigmas c. 1 mm long. Capsule ±trilocular, oblong-ovoid, obtuse or with a truncate top, c. 2.1–2.5 × 1.3–1.6 mm, pale brownish-greenish, later light castaneous-brown, shiny, exceeding perianth. Seeds ±ovoid, apiculate, c. 0.35–0.4 × c. 0.2–0.25 mm, c. 11–13-striate, densely transversally reticulate; appendages absent.