Peterson's Field Guides Edible Wild Plants (eastern/central North America), they also have a medicinal plant field guide. ISBN 0-395-92622-X at the back of this book there is a fairly extensive reference section w ~30 other related books. If you'd like I can scan it and post it. the ref page that is. S
Here's one you might want to look at, Tango. It's Wild Food Plants of Indiana and Adjacent States. I figger the adjacent parts got ya. Amazon.com: Wild Food Plants of Indiana & Adjacent States (9781425969974): Alan McPherson: Books@@AMEPARAM@@http://ecx.images-amazon.com/images/I/51N3bBt5fQL.@@AMEPARAM@@51N3bBt5fQL
I guess it really all depends on where you happen to be at the time.... I just dropped $600.00 on ebay, for a lot of books on medicinal and wild edibles.... Now, I'd hate to try to explain that idea to anyone, especially myself! I plan on moving into a waste land of the southwestern desert. (good place to hide out, no one else would dare to venture into that nightmare!) Not much out there to chomp on, except a few lizards, rattlesnakes, and scorpions... But, they go down ok with a salad of cacti! Love dem prickly pears, ('cept those darned little seeds!) Now, If I can only find an Apache, or Navajo Medicine Man, to show me the ropes, I'm good to go! (I did notice that a lot of the books I'd bought, refer to the northwest, all along the north and southern parts of the eastern coastal regions, and the middle states of the U.S., where there's much more abundant foilage, and water!) Bill