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Washington State Weeds

Reed Sweetgrass

Glyceria maxima

Family Name:


Class: A
Other Names: tall manna grass, reed grass
 Why is it a noxious weed?

Reed sweetgrass is an aggressive aquatic weed that produces an extensive network of underground roots and rhizomes that can reach one meter deep. It forms dense monotypic stands, crowding out native vegetation. It is a serious threat to our wetlands.

More Information:




Visit Washington State Noxious Weed Control Board Here