Occidryas editha, the Edith's Checkerspot, can be found in WA,OR,ID,WY,CA, and NV.
Favorite nectar plants include: Achillea, Cirsium, and Erigeron
USDA Growing Zones for these plants include: 3,4,5,6,7,8,9,10

Host plants:
Castilleja
Orthocarpus

CC0 image courtesy of
NSG group