http://www.drsfostersmith.com/pic/article.cfm?dept_id=0&siteid=1&acatid=336&aid=723

BTW most of the stuff sold as “cat grass” is wheat and oat sprouts.As a house plant it does not last too long, you have to keep sprouting it.

Dogs like to eat grass also, to purge themselves, the same way cats do.
Heather

Some plants should be avoided for the sake of animals of course small children who live in our houses, all of whom like to put things in their mouths.

Some plants are toxic to cats, like Poinsettias. Ivy, I think, is another -to dogs, also.

In the case of children, the answer is easier – don’t let them near any plants when they are too young to know better.

With animals it is harder to restrict their access.

Don’t think your dog can’t leap or climb as high as a cat, the dog just might surprise you. I have know two dogs who figured out how to work a doorknob using their teeth.

I will see if there is a list of toxic plants for cats and dogs on the Dr Fosters and Smith and other veterinary related websites.