Plants 10–35 cm. Leaves ±flat, convolute, c. 4–10 cm long, (1–) 2–3 (–4) mm wide, with one sometimes inserted in upper part of stem. Lower bract usually to 6–7 cm long, most often shorter than the longest inflorescence branch. Inflorescence of (1–) 2–3 ±hemispherical, (2–) 3–7 (–10)-flowered heads on peduncles 1.5–8 cm long. Capitulum bracts dark castaneous-brown. Outer tepals acute and inner subacute, 4.5–5.5 mm long, dark brown to dark castaneous-brown; apex paler; margins indistinct. Anthers 1.0–1.4 mm long; filaments 2.5–4.5 mm long; style (including mucro) 0.7–1.1 mm long; stigmas c. 1.5–2.0 mm long. Capsule 6–7.5 mm long, ±obtuse to subacute, shining, distally dark brown. Seed appendages to c. 1.5 mm long. 2n = 60, fide Á.Löve & D.Löve, Taxon 30: 849 (1981); J.Májovský & A.Murín, Karyotax. Prehl. Fl. Slov. 360 (1987).