Perennials, to c. 40 cm tall, caespitose; stem usually compressed, c. 1–3 mm wide. Cataphylls 0–2, loose. Basal leaves 0–3. Cauline leaves 2–3 (–4), compressed, pluritubular, imperfectly septate, rarely subcompressed, c. 2–8 (–12) cm long, 1.0–3.2 mm wide; apex acute; sheaths ±loose; auricles obtuse, scarious, to 1 mm long. Lower bract leaf-like, usually shorter than inflorescence. Inflorescence anthelate, decompound, of 3–25 (–40) cup-shaped to semiglobose 3–15 (–25)-flowered heads; proliferation is not rare. Capitulum bracts ovate-lanceolate, to c. 2 mm long, scarious. Tepals ±equal, narrowly lanceolate to linear-lanceolate, acuminate to acute, c. 2.5–4.0 mm long, greenish to stramineous, often suffused purplish. Stamens 3; anthers 0.3–0.8 mm long, shorter than filaments; style abbreviated, c. 0.1 mm long; stigmas ±patent, 1.0–1.5 mm long. Capsule unilocular, narrow, 3.3–4.5 mm long, distinctly exceeding to ±equalling perianth, ±golden brown to pale castaneous, shining. Seeds ±ellipsoid, apiculate, c. 0.4–0.5 × 0.2–0.25 mm, pale brown, reticulate; appendages absent.