Plants perennial, laxly tufted. Rhizome thick. Stems (8--)15--80 cm, usually slightly compressed. Cataphylls absent to 3. Basal leaves 1--3; leaf blade linear, 3--15 cm × 0.5--1 mm. Distal cauline leaves 1 or 2; leaf sheath auricles rounded, ca. 1 mm; leaf blade flat, 10--15(--20) mm. Inflorescences usually lax, many branched; branches unequal, longer ones 4--6 cm; involucral bract linear, often longer than inflorescence. Bracteoles present, broadly ovate, ca. 1 mm, margin scarious, apex obtuse. Perianth segments lanceolate to oblong-lanceolate, 1.8--2.6 × 0.9--1.1 mm, apex obtuse; outer segments slightly longer and narrower than inner ones, center greenish, margin broadly scarious. Stamens 6; filaments ca. 1 mm; anthers 0.8--1 mm. Ovary oblong. Style very short; stigmas ca. 1.5 mm. Capsule globose to ovoid, ca. 2.5 mm, apex obtuse and mucronate. Seeds obliquely ovoid, ca. 0.4 mm, striate. Fl. May--Jul, fr. Jun--Aug.
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