I found this:
Non Poisonous Plants for Dogs and Cats
Plants that are 'Non' Poisonous to Dogs and Cats Below is a list of plants that are not poisonious to dogs and cats.
This list was put together by the Animal Poison Control Center. More information can be found by visiting ASPCA's web site. Should your dog or cat eat one of these plants and have a reaction; take your pet and a sample of the plant to your local vet immediately.
Garden marigold
http://www.petfriendlyhouse.com/info...us_plants.aspx
BUT the marsh marigold is poisonous (the young leaves and stems). Here's a picture:
http://www.terragalleria.com/parks/n....cuva6963.html http://members.cox.net/jonanyorkies/aapoison2.htm#