Nuttall's Knotweed
Polygonum nuttallii
Synonym: Polygonum douglasii ssp. nuttallii
- ![Nuttall's Knotweed: Polygonum nuttallii (Synonym: Polygonum douglasii ssp. nuttallii)](nuttallii/nuttallii10-202-2023d.jpg)
- ![Nuttall's Knotweed: Polygonum nuttallii (Synonym: Polygonum douglasii ssp. nuttallii)](nuttallii/nuttallii10-202-2023b.jpg)
Nuttall's knotweed spotted on gravelly soils at the saddle at the north end of the Hamilton Mountain ridgeline, Beacon Rock State Park.....October 20, 2023.
Paul Slichter