Photograph from Lewis and Clark Herbarium/Academy of Natural Sciences
July 6, 1806, in Powell County, Montana.
Bitterbrush is a member of the rose family (family Rosaceae) which includes about 2,000 species of trees, shrubs, and herbs worldwide; approximately 77 native and 9 naturalized tree species and many species of shrubs and herbs in North America.
Coarse, well drained soil at elevations from near sea level to 9,800 ft (3000 m).
Arizona, British Columbia, California, Idaho, Montana, Nevada, New Mexico, Oregon, Utah, Washington, and Wyoming.