Native to Alberta, British Columbia, California, Colorado, Idaho, Montana, Nevada, New Mexico, Oregon, Saskatchewan, Utah, Washington, Wyoming (source: POWO). Flora of the World documents 3 occurrences across 1 country.
Location
United States, Idaho, Adams
45.189778, -116.304556
Location Remarks
Hwy 55 along the Little Salmon River. Ca. 19 km S of Pollock. Coarse basalt gravel on roadside turnout above the river. 976 m elev.
Collectors
No collectors specified
Location
United States, Idaho, Adams
45.189778, -116.304556
Location Remarks
Hwy 55 along the Little Salmon River. Ca. 19 km S of Pollock. Coarse basalt gravel on roadside turnout above the river. 976 m elev.
Collectors
No collectors specified
Location
United States, Idaho, Nez Perce
46.045056, -116.886556
Location Remarks
The Nature Conservancy's China Garden Creek Preserve, on the Snake River opposite the Oregon border, but on the Idaho side. Corral Creek jeep track. Vicinity of the red barn. 799 m elev.
Collectors
James F. Smith, Christopher Davidson, Sharon R. Christoph, Clark Shafer
Notes
Open meadows with Pseudoroegneria spicatum and Balsamorhiza sagittata; calyx pink.