It is endemic to California where it is found in shady mountain forests in the Sierra Nevada (from Sierra County to Kern County) and the San Gabriel Ranges from Santa Barbara County to San Bernardino County. There area also isolated populations in eastern Inyo County and in Modoc County.
Fritillaria pinetorum grows an erect stem between 10 and 40 centimeters high with four to 20 leaves narrow, straight or curling leaves. The erect flower has six tepals each one to two centimeters long and yellow-mottled purple in color. It is similar in appearance to Fritillaria atropurpurea.
- Jepson Manual
- Flora of North America, Fritillaria pinetorum
- United States Department of Agriculture plants profile
- Kew World Checklist of Selected Plant Families
- Davidson, Anstruther. 1908. Muhlenbergia; a journal of botany 4(5): 67–68
- Calflora taxon report, Fritillaria pinetorum Davidson, pine woods fritillary, pinewoods fritillary
- Jepson Manual Treatment - Fritillaria pinetorum
- USDA Plants Profile; Fritillaria pinetorum
- Fritillaria pinetorum - Photo gallery
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