Butterflies in Mind -- Zinnia
Susan C. Dunlap
A collection of 50 images as if seen from a butterfly’s point of view. Includes the names of native Zinnia species and the most complete list of US butterflies that will feed on Zinnia blossoms.
Butterflies in Mind -- Asclepias
Susan C. Dunlap
“Milkweed is the single most important plant for Monarch butterflies. This lavishly illustrated book contains details about the structure and cultivation of native Milkweeds, information about the 139 nectar-feeding butterflies they...
Butterflies in Mind -- Monarch
Susan C. Dunlap
This abundantly illustrated volume enables you to select from a complete list of well described perennial nectar plants that are known to attract & feed Monarch butterflies. Over 40 genera are described that are suitable to be grown...
Butterflies in Mind -- Perennials
Susan C. Dunlap
Butterflies in Mind - Perennials. This book is a definitive guide to perennial nectar plants preferred by US butterflies. It empowers you to feed, attract, support (and help identify) nectar-feeding butterflies that reside in the US....

Colias alexandra, the Alexandra Sulphur, can be found in WA,OR,ID,WY,CA,UT,AZ,MN, and NE.
Favorite nectar plant includes: Gaillardia
USDA Growing Zones for these plants include: 4,5,6,7,8,9

Host plants:
Astragalus alpinus
Astragalus bisulcatus haydenianus
Astragalus brauntonii
Astragalus canadensis
Astragalus crotalariae
Astragalus didymocarpus
Astragalus douglasii parishii
Astragalus douglasii
Astragalus eremiticus
Astragalus lentiginosus diphysus
Astragalus lentiginosus salinus
Astragalus lentiginosus
Astragalus miser oblongifolius
Astragalus miser serotinus
Astragalus miser
Astragalus trichopodus lonchus
Astragalus trichopodus phoxus
Hedysarum alpinum americanum
Hedysarum boreale mackenziei
Hedysarum boreale
Lathyrus lanszwertii leucanthus
Lotus scoparius
Medicago sativa
Oxytropis lambertii
Oxytropis splendens
Thermopsis macrophylla
Thermopsis rhombifolia divaricarpa
Thermopsis rhombifolia montana
Thermopsis rhombifolia
Trifolium pratense
Trifolium repens
Vicia americana
Gentiana newberryi

PD images courtesy of: unknown