A grass. It is tufted and keeps growing from year to year It grows 1.5 m tall. It can form roots at the lower nodes. The leaves are loosely hairy. The blades are expanded. The flowering shoot is 20 cm long. It has spike like branches. The spikelets are 3-3.5 mm long.
Panicle 10–28 cm. long, oblong, secondary branches very short or absent.
Leaf laminae 15–50 cm. long and 2–10 mm. wide, acuminate.
Tufted perennial with erect culms 50–200 cm. high.