Swamp zizanie

Marsh rice: Marsh rice, known as wild rice, is an annual plant belonging to the genus Zizania (family Poaceae - Grasses - subfamily Ehrhartoideae, tribe Oryzeae - Botanical name: Zizania palustris).
Botanically close to rice but belonging to a distinct genus, it is an aquatic plant, present west and north of the Great Lakes in North America (United States and Canada), especially in Minnesota, Manitoba and in Ontario...