Speyeria egleis, the Great Basin Fritillary, can be found in WA,OR,ID,WY,CA,NV, and UT.
Favorite nectar plants include: Symphyotrichum
USDA Growing Zones for this plant include: 2,3,4,5,6,7,8,9

Host plants:
Festuca ovina
Potentilla
Viola
Viola adunca
Viola nuttallii
Viola ocellata
Viola purpurea
Viola purpurea integrifolia
Viola purpurea venosa
Viola walteri