Purple loosestrife found at Alfred S. Tyson Park, in the river bed. Four small patches out in the river bed among the rocks out past the bottom of “boat” ramp. A few additional patches along the riverbank to the right of the boat ramp/road as you walk down toward the river. Possibly more, but that is what we noticed. Currently flowering.
Expert Reviewer
Mrs. Lindsey Wise Oregon Biodiversity Information Center, inr.oregonstate.edu/orbic Oregon iMapInvasives Institute for Natural Resources Portland State University