Perennial, densely tufted. Culms 25–60 cm tall, 2–3-noded. Leaf sheaths glabrous, usually shorter than internodes; leaf blades rolled, setaceous or narrowly linear when flat, 5–15(–25) cm, 1–3 mm wide, abaxial surface scaberulous, adaxial surface pubescent; ligule lanceolate, 2–5 mm. Panicle loosely contracted to linear, 5–20 cm; branches 1–3 per node, erect or ascending, longest not usually more than 3 cm. Spikelets yellowish green, apex usually purplish; glumes lanceolate, 6–8 mm, herbaceous, apex acuminate; callus glabrous; lemma narrowly lanceolate to almost linear, (3.3–)4–6.5 mm, densely pubescent with 0.2–0.4 mm hairs, apex entire, awned from apex; awn sometimes tardily deciduous, delicate, 2–4(–6) mm, straight at insertion. Anthers 2–3.5 mm, bearded at apex. Fl. and fr. Jun–Aug.
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