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Common Name: Water Smartweed
Scientic Name: Persicaria amphibia
Colors: Red
Months Appearing: August, September

Also called Water Knotweed and Amphibious Bistort. Alternate scientific name Polygonum amphibium.

Up to 3 feet tall. Native.

Flowers in "stubby " clusters of 1 inch. Individual flowers 1/8 inch. 

Leaves are narrow with sheath at base of petiole. 

Wet soil, swamps, Haymarsh Lake State Game Area, Mecosta County, Mi. 8/24, 6290, 6289