Fritillaria falcata
Fritillaria falcata is a species of fritillary known by the common name talus fritillary. It is endemic to California, USA, known only from 5 counties south and east of San Francisco Bay. It grows in the Coast Ranges at elevations of 300–1200 m, mostly on serpentine talus. It is sometimes considered a subspecies of Fritillaria atropurpurea.