Plants 25–32 cm tall; stem 1.2–2.5 mm in diam., ±smooth. Lower cataphylls grey-brown to dark brown, not shiny; upper cataphylls stramineous grey-brown; uppermost cataphyll grey-brownish to greenish-stramineous, ±loose, to c. 4–5 cm long. Lower bract 3–5 cm long, c. 1/4–1/6 of stem. Inflorescence 2–5-flowered, of 1–3 subsessile flowers and 1 (–2) branches to 1–1.5 cm long. Bracteoles to c. 2 mm long, ovoid, subobtuse, membranous. Tepals subequal. Outer tepal longer, ±acute, oblong-ovoid, 3.5–4.3 mm long. Inner tepals ±obtuse, to c. 3.5 mm long; central band greenish pale brown, bordered dark castaneous-brown; margins broad, membranous. Anthers c. 0.6–0.7 mm long; filaments 0.7–0.8 mm long; style c. 0.2 mm long; stigmas to 1.3 mm long. Capsule oblong to ellipsoid-ovoid, c. 3.8–5.2 mm long, with narrower upper part subabruptly narrowing into subacute apex, brown to deep castaneous-brown, conspicuously exceeding perianth. Seeds oblong-ovoid, c. 0.7 × 0.3–0.35 mm, apiculate, pale brown, finely striate and indistinctly transversely reticulate.
Siberia, Mongolia. 30: TVA, YAK. 37: MON.
30. YAKUTIYA: Uczurskiy Distr., banks of Uczur R., 56 404 N, 100 151 E, 20 Aug 1932, Iljina (MW). 37. MONGOLIA: W shore of Lake Kosogol, 6 Jul 1902, V.L.Komarov (LE).
Shores of watercourses.