Perennials up to 60 cm tall, caespitose, hairy; rhizome vertical or ascending; stolons absent. Stem thick, rigidly erect, with only the uppermost part nodding. Basal leaves numerous, often squarrose, rigid, flat or canaliculate, usually 5–10 cm long and 2–4 mm wide; cauline leaves 2–4, densely hairy, to 13 cm long, evenly distributed on stem, often overlapping; all leaves acute, indistinctly papillose-serrulate. Lower bract herbaceous, densely hairy, up to 5 cm long, overtopping inflorescence; middle bracts supporting flower clusters purplish-brownish membranous, lanceolate, aristate, densely ciliate, c. 0.8–1.5 (–2.0) cm long, often exceeding the partial inflorescence. Inflorescence erect to slightly nodding, compact (rhachis usually not visible), usually 2.5–5 × c. 1.5 cm, often lobulate, rarely interrupted at base, dark castaneous brown, composed of c. 3–8 dense clusters. Bracteoles castaneous-membranous, ovate-lanceolate, aristate, 2.0–2.5 mm, long ciliate. Tepals subequal or irregularly unequal, lanceolate, acuminate and aristate, usually ciliate, dark castaneous brown; upper part membranous with prominent midrib; longest tepals in flower 3.0–4.4 mm long. Stamens 3; anthers 0.3–0.4 mm long; filaments 0.6–0.9 mm long; style 0.1–0.2 mm long; stigma 0.5–1.1 mm long. Capsule oblong-ovoid, subacute to obtuse, paler brown; capsule segments 1.8–2.2 × 1.3–1.4 mm. Seeds paler brown, with darker apex, ellipsoidal, 1.1–1.4 mm long, c. 0.7 mm wide; appendage scarcely visible, c. 0.1 mm long, densely long fibrillate (seeds difficult to release from capsule).