Culms erect, slightly decumbent at base, ca. 100 cm tall, ± puberulent at nodes. Leaf sheath glabrous, or retrorsely pubescent proximally; leaf blade flat, 11–20 × 0.4–0.7 cm, thin, abaxial surface glabrous, adaxial surface pilose. Spike erect, 10–13 cm. Spikelets 1 per node, ± secund, dense, with ca. 5 florets. Glumes lanceolate, proximal one 9–10 mm including point, distal one 9.5–11.5 mm including point, (3–)5(–7)-veined, scabrous along veins, margin glabrous, apex acuminate. Lemma hirsutulous near base and margin and along veins, otherwise glabrous; first lemma ca. 10 mm; awn reflexed, 18–22 mm. Palea subequaling lemma, rigidly ciliate along keels, between keels glabrous proximally and puberulent distally, apex emarginate, truncate, or subrounded. Fl. and fr. Jul–Aug. 2n = 28*.
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