This is a site wich lists the edible plants for reptiles : http://www.anapsid.org/resources/edible.html
and an other about the suitable plants for reptile habitats:
http://exoticpets.about.com/gi/dynamic/offsite.htm?zi=1/XJ&sdn=exoticpets&cdn=homegarden&tm=17&f=10&tt=12&bt=1&bts=1&zu=http%3A//www.anapsid.org/resources/plants2.html
For your BD now...I don't know. A lot of dog/cat website suggest to consult a vet immediately if the animal eats a toxic plant. Maybe you can call your vet and see what he suggests you. I really don't know what else to do. Your animal can be just fine, but I wouldn't take any chance.
-----
Lisabeth
1.1 Bearded dragons (Flake and Rusty)
1.1 Uromastyx geyri (Spiky and Salsa)
1.1 Guinea pig (Pumpkin and Moka)