http://vet.vet.purdue.edu/vth/SACP/documents/herbivorousreptiles.pdf
http://www.anapsid.org/resources/plants.html
http://www.tortoisetrust.org/articles/Plantoxins.htm
http://www.tortoisetrust.org/articles/plantfoods.html
http://www.moonvalleyreptiles.com/uromastyx/uromastyx-diet

Here are just a few pages Tommy. Do a search for Kentucky native weeds. Usually one of th euniversities will have a data base with info and id.

Tom