Densely caespitose perennial without rhizomes or stolons; culms up to 120 cm tall, erect, unbranched, glabrous at the nodes, eglandular; basal leaf sheaths glabrous, chartaceous, compressed and keeled, eglandular, persistent; ligule a line of hairs; leaf laminas 10–45 cm × 1.5–2.5 mm, tightly involute or convolute and filiform, glabrous, eglandular.
Panicle 7–27 cm long, oblong or ovate-oblong, lax and sometimes nodding, the spikelets evenly distributed on filiform pedicels 4–20 mm long, the slender primary branches not in whorls, terminating in a fertile spikelet, glabrous in the axils, eglandular.
Caryopsis 0.7–1 mm long, narrowly oblong.
Tufted perennial about 1 m. high
Delicate open panicle
Rolled leaf-blades