[Wikipedia] Range, Habitat: Viola praemorsa is native to western North America from British Columbia and Alberta in Canada; to Washington, Oregon, Idaho, Montana, Wyoming, Utah, California, Nevada, and Colorado in the U.S.[3] It occurs on mountain slopes, usually where forests or grassy meadows are present, in moist or dry soil.[4] In California, it often occurs in yellow pine forests. (link added by Mary Ann Machi)