Culms laxly tufted, geniculate at base, 40–70 cm tall, smooth, glabrous. Leaf sheath smooth, glabrous; leaf blade glaucescent green, involute or plicate, 6.5–17(–25) × 0.1–0.4 cm, abaxial surface smooth, glabrous, adaxial surface scabrous, apex acuminate. Spike 7–8 cm; rachis glabrous. Spikelets 10–13 mm, with 3–5 florets. Glumes pale green, tinged purplish, oblong-lanceolate, oblique distally, equal, 8–10 mm, or proximal glume slightly shorter, usually 3-veined, or 4-or 5-veined in distal glume, glabrous or pilose, margin submembranous, apex acuminate or shortly pointed. Lemma glabrous in proximal and middle parts, smooth but densely hispid in distal and lateral parts; first lemma ca. 9 mm, apex with point 1–3 mm. Palea slightly shorter than lemma, puberulent proximally, ciliolate along keels distally, apex emarginate. Anthers black or dark green. Fl. and fr. late summer. 2n = 42*.
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