Culms to 80 cm × 3–8 mm, scabrous. Leaves: sheath fronts not spotted, slightly thickened near hyaline margins, apex convex, membranous, rugose; ligule retuse or rounded, to 3 mm, free limb to 0.2 mm; blades 60 cm × 5 mm, shorter than flowering stem. Inflorescences spicate, 3–7 cm × 15–25 mm, with 10–15 branches, proximal branches not distinctly separate; the proximal internode to 10 mm; bracts setaceous, usually only the proximal conspicuous. Scales hyaline, pale brown, becoming colorless with green midrib, awn usually not longer than the body. Perigynia pale brown, body broadly ovate, 3.2–4 × 2–2.6 mm, base rounded or cordate, apex abruptly contracted to beak; beak 1.3–1.5 mm, 1/3 length of perigynium. Achenes brown, ovate, 1.5–1.9 × 1.2–1.6 mm, dull.
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