Mostly 10–30 (rarely to 40) cm tall; rhizome creeping, with most rhizome internodes very short. Stem bluish green, rigid, c. 0.8–1.2 mm in diam., faintly irregularly striate. Cataphylls 3–4, stramineous to light stramineous-brown, sometimes pale castaneous at base; blade usually missing. Lower bract 1/8–1/4 as long as stem. Inflorescence usually mostly 2–4 (–6)-flowered, usually ±contracted; flowers on short pedicels. Tepals 3–4.5 mm long, ovate to elliptical; outer tepals obtuse to mucronate (sometimes apiculate); inner tepals slightly shorter, 2.7–4 mm long, obtuse to emarginate, sometimes subacute. Anthers 0.4–0.7 mm long; filaments 0.6–1.1 mm long; style c. 0.5 mm long; stigmas c. 1 mm long. Capsule 3.5–4.5 (–5.0) mm long, trigonous-ovoid to trigonous-ellipsoid, equalling to slightly exceeding perianth, obtuse; mucro c. 0.2–0.3 mm long, dark castaneous-brown. Seeds c. 0.7–1.0 × 0.3–0.4 mm, faintly reticulate and c. 25-striate; appendages ±absent. 2n = c. 80, fide Ö.Nilsson & S.Snogerup, Bot. Not. 124: 313 (1971).