Range and Habitat in Illinois
Giant Reed occurs occasionally in central and northern Illinois, while in the southern part of the state it is uncommon. This species is native to Illinois and other parts of North America; it also occurs in Eurasia, Africa, and Australia. Habitats include edges of floodplain forests, swamps, wet prairies, marshes, edges and shallow water of ponds and rivers, large drainage ditches, edges of poorly drained fields, and wet areas along beaches. In some of these habitats, Giant Reed can become the dominant wetland plant.