North Central Washington is filled with wildflowers, awaiting discovery. Here is a short list of identification tools you can carry with you into the field.
3 photo field guides in the Northwest Wildflowers Series by Dana Visalli and David Hancock (2005). Available at The Methow Naturalist, PO Box 175, Winthrop, WA 98862
Northwest Dryland Wildflowers: Sagebrush and Ponderosa
Northwest Coastal Wildflowers
Northwest Mountain Wildflowers
Sagebrush Country: A Wildflower Sanctuary by Ronald J. Taylor (1992)
Plants of Southern Interior British Columbia and the Inland Northwest by Robert Parish (1996).
Trees and Shrubs of the Pacific Northwest by Mark Turner and Ellen Kuhlmann (2014)
Wildflowers of the Pacific Northwest by Mark Turner and Phyllis Gustafson (2006)
Phone app: The University of Washington Herbarium and the authors of Wildflowers of the Pacific Northwest have partnered with High Country Apps to produce a new plant identification app for Android, iPhone, & iPad. The app covers 870 common wildflowers, shrubs, and vines that occur in Washington and adjacent areas. http://biology.burke.washington.edu/herbarium/imagecollection.php
3 photo field guides in a series of Showy Wildflowers of the Plains, Valleys, and Foothills in the Northern Rocky Mountain States by Dee Stricker published by The Flower Press, 192 Larch Lane, Columbia Falls, MT 59912 (1-800-582-2665):
Forest Wildflowers Prairie Wildflowers Alpine Wildflowers
http://www.wnps.org The Washington State Native Plant Society (WNPS). Offers native plant lists by county. Wenatchee Chapter is active and offers monthly programs and wildflower walks.
http://biology.burke.washington.edu/herbarium/imagecollection.php The University of Washington Burke Museum Herbarium has stunning photographs and detailed descriptions of all Washington plant species.
http://fieldguide.cdlandtrust.org/ CDLT offers a localized searchable photo field guide to over 60 of the most common wildflowers in the Wenatchee Foothills.
Native plant demonstration garden located at the Okanogan & Wenatchee National Forests Forest Supervisor’s Office at 215 Melody Lane in Wenatchee. Thirty-two species of native wildflowers and grasses are labeled and easily visible in the artistically designed garden.
http://www.fs.fed.us/r6/uma/urban/ Full page coloring sheets of many native wildflowers.