Plants are emergent, have yellow flowers, and have grown very quickly. I walk by there often.
Commentary
None
Location
I think I've seen the invasive water primrose in Reedville Creek, on the west side of Imlay St just north of where Imlay and Frances St come to a T. I cannot be entirely sure as it is difficult to get to that area as it is blocked off as it is a natural area.
Expert Reviewer
Eli Staggs Tualatin Soil and Water Conservation District