Plants to 0.8 m tall. Culms erect or geniculate at base. Leaves: ligule 2–9 mm long, obtuse; auricles mostly on lower leaves, thickened, glabrous; blade firmly folded to inrolled, to 30 cm long, 0.5–1.5 mm wide, smooth to strongly ribbed, densely pubescent on adaxial surface, with margins glabrous to scabrous with minute tubercles. Inflorescence 10–20 cm long. Glumes unequal, 9–16 mm long, acuminate. Callus 1.7–2.5 mm long, densely sericeous. Lemma with a neck, 5.5–7 mm long, scaberulous with minute tubercles, black at maturity, densely white-sericeous; coma obscure, to 0.8 mm long; awn 25–40 mm long, with column dark brown and bristle paler. Palea subequal to lemma, obtuse to acuminate. Lodicules 3, oblong to acute.
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