Native to Alberta, Arizona, British Columbia, California, Colorado, Idaho, Montana, Nevada, New Mexico, Oregon, Saskatchewan, Utah, Washington, Wyoming (source: POWO). Flora of the World documents 1 occurrence 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