Plant solitary or loosely tufted; shoots extravaginal. Culms 50–110 cm tall, nodes 2–3. Leaf sheaths glabrescent; auricles absent; leaf blades flat or involute, (10–)25–40 cm × 1–4(–6) mm, margins scaberulous or scabrid; adaxial to abaxial sclerenchyma strands present, abaxial sclerenchyma in narrow discrete strands; ligule 1.1–2.5(–5) mm, margin ciliolate. Panicle loose, open but narrow, 15–20(–25) cm; branches 5–10(–14) cm, 2 at lowest node, lower 1/3–1/2 naked. Spikelets 11–15 mm; florets (2–)3–5; glumes smooth or veins spinescent, margins membranous; lower glume narrowly lanceolate, (3.5–)4–5 mm; upper glume lanceolate or broadly lanceolate, 5.5–7 mm; rachilla internodes (1–)1.5–2 mm; lemmas (7–)8–9(–11) mm, scabrid, apex mucronate to awned; awns 0.1–2 mm; palea keels smooth. Anthers 3–4 mm. Ovary apex glabrous. Fl. and fr. Jul–Sep.