Perennial with culms 30–100 cm high; nodes hairy. Leaves: ligule a membrane 0.5–1 mm long, margin glabrous or ciliate; blade linear to narrowly lanceolate, 3–25 cm long, 2–6 mm wide, puberlous, pilose, sometimes glabrous. Inflorescences subdigitate, with axis 2–10 mm long; racemes 3–4, 7–13 cm long; raceme internodes 2–3 mm long, with scabrous-ciliate margins or glabrous. Spikelets linear-elliptic to lanceolate, laterally compressed, conduplicate and keeled, 3.3–4.8 (–5.6) mm long, c. 1 mm deep; lower glume flat, ± same length as upper, smooth, ciliate or pilose on keel, membranous on each side of midvein, apex acuminate to mucronate; upper glume flat, smooth, ciliate to pilose on keel and margin wings, charataceous, acute to mucronate, keel with developed wing especially towards apex and into mucro or wing absent; lower lemma linear to narrowly oblanceolate, c. 2 mm long, ciliate on margins and apex, hyaline, obtuse or shortly lobed, awnless with short mucro; upper lemma oblanceolate, c. 3 mm long, glabrous, hyaline, bifid to 2-lobed, with awn 10–17 mm long.
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