Although poinsettias belong to poisonous plants, they are only moderately poisonous for felines. This plant’s white sap can irritate a cat’s skin or her digestive system, but she would need to consume it in extremely large amounts to be fatal.
Cats rarely consume enough poinsettia leaves to need medical attention. However, eating poinsettia can cause some symptoms, such as vomiting, drooling, or diarrhea, and even swelling and redness of skin in some cats
People should be careful around this plant, too, since its sap can irritate their skin and mildly upset the stomach. Fortunately, both animals and people will probably struggle to eat a lot of poinsettia leaves due to their terrible taste.