[explorer.natureserve.org] Range, Habitat: Claytonia serpenticola occurs in northwestern California in the North Coast Ranges up to the Siskiyou Mountains in southern Oregon. It is associated with mafic substrates and occurs in dry, stony areas of mixed conifer forest. There are around 21 known occurrences. Surveys of historic occurrences and potential habitat will provide valuable information that will better inform the conservation status of this species. Trends are unknown. Given that all occurrences are on Forest Service Land at remote locations, implies that threats to this species are low. (link added by Mary Ann Machi)