Annuals, (4–) 8–14 (–30) cm tall, caespitose; stems erect to suberect. Cataphylls c. 1–3, stramineous-brownish. Cauline leaves sub-basal, usually 1–2, 1–5 cm long, 0.5–1.3 mm wide, ±canaliculate; auricles absent. Lower bracts leaf-like, to c. 3 cm long. Bracteoles ovate, c. 1.0–1.3 mm long, ±acute, scarious. Inflorescence constitutes (1/2–) 3/4–9/10 of plant height; flowers borne singly, remote; inflorescence branches erecto-patent. Tepals unequal. Outer tepals ±lanceolate, (2.5–) 2.7–3.4 (–4.0) mm long, acute; central band stramineous to pale green; margins membranous. Inner tepals c. 2.0–3.2 mm long, ±acute; midrib narrow; margins broad, membranous. Stamens 6; anthers (0.2–) 0.3–0.5 (–0.6) mm long; filaments c. 0.6–1.0 mm long; style 0.1–0.2 mm long; stigmas recurved, 0.4–0.8 mm long. Capsule subglobose, slightly subtrigonous, obtuse, minutely mucronate, c. 2.0–2.5 (–3.0) mm long, shorter than outer tepals, ±equalling the inner ones, usually pale brown. Seeds ±ovoid, 0.35–0.45 × c. 0.3 mm, pale castaneous-brown, almost smooth or very faintly reticulate. 2n = 36, fide S.Snogerup, Bot. Not. 111: 249 (1958).