Native to British Columbia, California, Idaho, Montana, Oregon, Washington (source: POWO). Flora of the World documents 3 occurrences across 1 country.
Location
United States, Idaho, Benewah (Saint Maries)
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
Clear-cut area in Libocedrus forest upslope from road. Area of low shrubs and perennials incl. Holodiscus, Xerophyllum, Ceanothus, Frasera. Shrub ca. 0.5 m.
Location
United States, California, Marin (Mill Valley)
37.8925, -122.568611
Location Remarks
Muir Woods National Monument. Take Highway 101 to the Highway 1/ Stinson Beach Exit. Follow the signs to Muir Woods.
Collectors
No collectors specified
Location
United States, Idaho, Valley (Cascade)
44.158, -116.118361
Location Remarks
Highway 55 c. 10 km north of the bridge at Banks. Mixed conifer forest along the N. Fork Payette River.
Collectors
No collectors specified