Inferior glume 2/3 as long as spikelet, glabrous to pilose, acuminate.
Panicle 5–25 cm. long, contracted, the branches pubescent to pilose.
Palea keels winged to midway, the wing terminating in an auricle.
Leaf laminae 3–15 mm. wide, one margin crinkly.
Inferior lemma 5–7-nerved.
Spikelets 10–12 mm. long.
Culms 60–120 cm. high.
Tufted perennial.