[explorer.natureserve.org] Range: Endemic to California, Lewisia serrata is known from approximately eleven occurrences in El Dorado and Placer Counties. However, five of the occurrences are historic and need to be surveyed for up to date information. Horticultural collecting and small hydroelectric power projects are threats to this species. (link added by Mary Ann Machi)
[encyclopaedia.alpinegardensociety.net] Description, Range: Very similar to L. cantelovii, but leaves deeply serrate and definitely pointed at the apex, in smaller, neat rosettes. Flowers many in loose panicles with five, very narrow white or pale pink petals having darker veins, 1-1.2cm wide, summer. Eastern California on north facing shady, moss-covered cliffs in gorges of metamorphic rocks at 900-1300m. (link added by Mary Ann Machi)