Plants to 1 m tall. Leaves: ligule 0.5–0.8 mm long, obtuse to truncate, firm; auricles spreading, with inner auricle conspicuously tufted; blade expanded to inrolled, 1.5–2.5 mm wide at base, densely pubescent and hirsute, with adaxial surface slightly to strongly ribbed. Inflorescence to 36 cm long, open, moderately dense, exserted at length; spikelets gaping early in development. Glumes unequal, 11–15 mm long, acuminate. Callus 1.5–2 mm long, fine and straight, with hairs similar to those of lemma. Lemma turbinate, 5.5–6.5 mm long, deep brown at maturity, smooth, densely sericeous with hairs white then yellowing at maturity; coma 2–2.5 mm long, of soft erect hairs; lobes less than 0.2 mm long; awn 35–60 mm long, scabrous, with column 15–25 mm long. Palea subequal to lemma (to 0.5 mm shorter). Lodicules 2.