Native to Alberta, British Columbia, Colorado, Idaho, Manitoba, Montana, North Dakota, Northwest Territories, Oregon, Saskatchewan, South Dakota, Utah, Washington, Wyoming, Yukon (source: POWO). Flora of the World documents 2 occurrences across 1 country.
Location
United States, Idaho, Fremont
44.289333, -111.459389
Location Remarks
Intersection of Hwy 20 and Pinehaven Rd. ca. 16 km S of bridge in Island Park and 26 km N of Main St. in Ashton. Elev. 1868 m.
Collectors
Christopher Davidson, Sharon R. Christoph
Notes
Dry roadside, S slope in fir/lodgepole forest-grassland mosaic.
Location
United States, Idaho, Idaho
45.244, -115.588639
Location Remarks
1.9 km N of Warren Summit on FSR 340, at Mayflower Creek Bridge. Elev. 1904 m.
Collectors
Barbara Ertter, Christopher Davidson
Notes
Dry open loamy sites in open subalpine fir forest on basalt. Common but scattered, leaves +/- glaucous, ligules yellow with red-brown backs.