Zizaniopsis miliacea

About

Zizaniopsis miliacea is a species of flowering plant in the grass family, Poaceae. It is known by the common names giant cutgrass, water millet, and southern wildrice. The name giant cutgrass refers to the plant's large, rough-edged leaves, and the name southern wildrice refers to its resemblance to wildrice. It is native to the southeastern United States and it can also be found in central Mexico.

Summary from Wikipedia