Below are links to lists of frequently encountered plants that have been reported to have systemic or intense gastrointestinal effects on dogs and cats.
If you think your pet may have ingested something toxic, contact your veterinarian or
the ASPCA 24-hour poison hotline at 1-888-426-4435.
(None of these suggestions are intended to replace professional vet care. In the event of an emergency, get your animal companion to a vet ASAP!)

Common Plants Toxic to Dogs

Common Plants Toxic to Cats

Common Plants Non-toxic to Dogs

Common Plants Non-toxic to Cats