More than 700 plants have been identified as producing physiologically active or toxic substances in sufficient amounts to cause harmful effects in animals.
Poisonous plants produce a variety of toxic substances and cause reactions ranging from mild nausea to death.
Certain animal species may have a peculiar vulnerability to a potentially poisonous plant. Cats, for instance, can be poisoned by any part of a lily.
Download a list of plants that are poisonous to pets (PDF) »