Culms laxly tufted, slender, 60–100 cm tall, 1.5–3 mm in diam. at base. Leaf sheath smooth, glabrous, but retrorsely pubescent at base; leaf blade flat or involute, 9–20(–26) × 0.2–0.8 cm, abaxial surface glabrous, adaxial surface scabrous or puberulent. Spike erect or nodding, usually secund, 9–15 cm. Spikelets 1 per node, yellowish green or tinged purplish, 15–25 mm, with (3–)5–7 florets. Glumes oblong-lanceolate or lanceolate, subequal and 10–15 mm or proximal one 6–11 mm and distal one 9–12 mm, 5–7-veined, scabrous along veins, apex acute or acuminate. Lemma lanceolate, hispidulous throughout; first lemma 10–12 mm; awn divaricate, 2.5–4.5 cm. Palea equaling or subequaling lemma, hispid along keels, apex subobtuse or emarginate. Anthers 2.5–3.5 mm. Fl. and fr. Jun–Aug.
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