Plants (25–) 30–45 (–70) cm tall, forming dense to loose stands; rhizome creeping, 2–4 mm in diam., sparsely branched, with very short to 1.5 cm long nodes. Cataphylls usually 3–4, tight, 6–10 cm long, abaxially stramineous-brown or often reddish brown to castaneous distally, red-brown or dark castaneous proximally, glossy; blade minute or absent. Stem terete, 1–3 mm thick; pith of irregular cells with long processes, becoming arachnoid. Lower bract usually 9–16 cm long. Inflorescence mostly 1–3 cm long, lax or rarely ±contracted, mostly (9–) 12–32-flowered. Bracteoles ovate, c. 1.5 mm long, scarious to castaneous. Outer tepals 4.0–5.4 mm long, apiculate to acute; central band greenish, bordered deep castaneous; margins of variable width, scarious. Inner tepals slightly shorter, usually 3.5–4.5 mm long, lanceolate, mucronate to acute, castaneous-brown with broad green midrib and membranous margin. Stamens 1.8–2.6 mm long; anthers 1.4–2.0 mm long, 2.5–4.5× as long as 0.4–0.6 mm filaments; style c. 1.0–1.2 mm long; stigmas to c. 2.0 mm long. Capsule 3–4 mm long, narrowly trigonous-ovoid, subacute with mucro 0.2–0.3 mm long, ±equalling perianth, usually light to golden brown. Seeds ±ovoid, c. 0.7–0.8 mm long, faintly reticulate.