I happen to search on the web and found the following toxic foods for rabbits. I am surprised, the list is alphabetical and long.

If you think your rabbit has eaten a poisonous plant, please call your vet for help. This site also have rabbit care for bunny lovers. I find it good so wanted to share it here.

Enjoy and God Bless.

http://www.double-d-ranch.org/articles/toxic-plants.php