Perennial, loosely tufted. Culms 20–60 cm tall, 1.3–2 mm in diam., nodes geniculate. Leaf sheaths loose, uppermost sheath ca. 10 cm, reaching base of inflorescence; ligule 1–2 mm; leaf blades flat or conduplicate, 8–20 cm, 1–3 mm wide, margins and adaxial surface scabrous. Panicle 8–20 × 3–5 cm; branches 2–5 per node, 3–8 cm, smooth, lower part naked, upper part densely spiculate. Spikelets 5–7 mm, florets 5–7; lower glume 1–1.2 mm, upper glume 1.5–2 mm; lemmas 2–2.5 mm, base slightly pubescent, apex obtuse, dentate-ciliate; palea keels scabrous on upper part; anthers 1.1–1.3 mm. Fl. Jun–Aug.
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