Cats And Poinsettia Leaves. If ingested, these substances will cause digestive upset, such as vomiting, drooling, or rarely, diarrhea may be seen. Signs of poisoning if your cat eats a poinsettia include:
Any part of the plant, including the pollen, flower, stems and. If our pet only ingested a bite of the plant, the adverse reaction is more than unlikely. Of all of these festive plants, lilies are the most toxic and are potentially fatal if ingested by cats.