Perennials, c. 30–120 cm tall, robust; rhizome to 6 mm diam., creeping; internodes c. 1–5 cm long. Cataphylls 2–3, ±brown; blade absent or short filiform. Cauline leaves 2–4, ±terete, to c. 60 cm long, sometimes exceeding inflorescence; auricles present; sheaths ±dilated; pith of astericiform cells; apex acuminate. Lower bract c. 2–5 (–10) cm long, shorter than inflorescence, acuminate. Bracteoles stramineous-membranous, ovate, acuminate, to c. 2 mm long. Inflorescence supradecomposite, of several anthelas, multiflorous, c. (3–) 7–20 (–40) cm long, to 5–8 cm diam. Tepals subequal, with outer often slightly longer, 2.4–3.5 mm long, usually pale brown to stramineous-brown, ovate-lanceolate, apiculate to acute; margins broad, membranous; inner tepals subobtuse, mucronate. Stamens 6, c. 1/2 as long as perianth; anthers 0.9–1.3 mm long; filaments c. 0.3–0.4 mm long; style to 1 mm long; stigmas c. 1 mm long. Capsule ovoid-trigonous, 2.5–3.0 mm long, ±equalling perianth, obtuse to subobtuse, dark castaneous-brown; mucro short. Seeds obliquely ovoid, c. 0.5–0.7 × 0.30–0.35 mm, ±brown to pale brown, slightly reticulate; apices prominent, appendix-like, less than 0.1 mm long. 2n = 42, fide S.Snogerup, Bot. Not. 116: 146–147 (1963).