Knotweeds

Polygonum cuspidatum, Polygonum x bohemicum, Polygonum sachalinense

Photo Credit: Nanna Borcherdt

Photo Credit: Steve Manning

Photo Credit: Randy Westbrooks

Perennial; small, white to green flowers in drooping clusters from leaf axils. Reddish brown and hollow stems. Leaves broad and ovate.

Habitat Notes	Near water sources, along streams and rivers, wetlands, riparian areas and roadsides.
Mature Height	6.5-13’