A Peterson Field Guide to Wildflowers: Northeastern and North-Central North AmericaFind what you're looking for with Peterson Field Guides their field tested visual identification system is designed to help you differentiate thousands of unique species accurately every time. Grouped by color and by plant characteristics, 1,293 species in 84 families are described and illustrated. Included here are all the flowers you're most likely to encounter in the eastern and north central U. S., westward to the Dakotas and southward to North