Native to Alaska, British Columbia, California, Colorado, Idaho, Montana, Oregon, Washington; introduced into Great Britain (source: POWO). Flora of the World documents 1 occurrence across 1 country.
Location
United States, Idaho, Benewah
47.3545, -116.376944
Location Remarks
Reeds Gulch Rd. to FSR 550, to the N of Calder-Avery Rd. (=NF 50). 9.8 km toward Baldy Peak. Elev. 1238 m.
Collectors
Christopher Davidson, Sharon R. Christoph
Notes
Flooded margin of a large pond (Turtle Lake) adjacent to St. Joe River. Shrub 1-2 m, flowers deep rose pink.