Perennial, caespitose. Culms 55–90 cm high. Young shoots intravaginal. Leaves: basal sheath margins free; ligule 0.3–0.6 mm long; auricles absent; blade folded to involute, filiform, angled, 8–19 cm long, 0.3–0.9 mm wide (not flattened out), firm but pliant, adaxially densely puberulous. Panicles open, 11–24.5 cm long. Spikelets 12.8–22 mm long, with 5 or 6 bisexual florets. Glumes: lower glume 3–4.9 mm long, 1 or 3-nerved, with lateral nerves short; upper glume 4.7–8 mm long. Lemma laterally compressed, 9.4–12.8 mm long, acuminate, awned, obscurely 5-nerved, papillose and minutely scabrous on midnerve or all nerves; awn apical, 6.8–17 mm long. Caryopsis narrowly ellipsoid.
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