Plebejus saepiolus, the Greenish Blue, can be found in AK,WA,OR,ID,WY,ND,ND,SD,CA,NV,UT,AZ,NM,MN,WI,IA,MI,NH, and ME.
Favorite nectar plants include: Achillea and Taraxacum officinale
USDA Growing Zones for these plants include: 3,4,5,6,7,8,9,10

Host plants:
Lotus
Trifolium
Trifolium breweri
Trifolium cyathiferum
Trifolium hybridum
Trifolium longipes
Trifolium longipes atrorubens
Trifolium monanthum
Trifolium parryi
Trifolium productum
Trifolium repens
Trifolium thompsonii
Trifolium variegatum
Trifolium wormskioldii

CC0 image courtesy of
Alan Schmierer