Fritillaria falcata, commonly known as the talus fritillary, is a species endemic to the serpentine scree slopes of the mountains in and around the San Francisco Bay Area in California. It grows a short stem about 10 to 20 centimeters tall surrounded by two to six flat, sickle-shaped leaves up to about 8 centimeters in length. The upward facing flower has six tepals one to two centimeters long which are greenish on the outside and yellow mottled with purple-brown inside.