When researching wild edibles it is mission critical to always use resources that use botanical names. There are far too many errors out there so you should always double if not triple check your sources to be on the safe side.
A Garden to Dye for is a must-have book if you're either curious or serious about learning how to dye your own fabrics. Author Chris McLaughlin wrote this incredible book and she has ensured the balance between text and (incredible) images is simply perfect.
Long time California forager Christopher Nyerges has been a survival skills educator for forty years. His newly released Guide to Wild Plants and Useful Plants is a terrific book for those interested in learning how to identify wild edibles.