DistributionRead full entry
This species is known from nine scattered sites in northern California and the extreme south of Oregon. Only one of them extends as far as two miles in length. Locations once known have been lost. In northern California C. bakeri occurs in Siskiyou, Modoc, Shasta, Plumas and Tehama Counties; and in southwest Oregon it is very localized in Josephine and Jackson Counties. This includes locales in the Modoc Plateau, southern Cascade Range, Klamath Mountains, Siskiyou Mts. and northern Sierra Nevada.