The Neanthe Bella Palm tree, also known as the Peacock Palm, is not poisonous to dogs. But toxicity depends on the leaves and the type of dog that it is. Excessive exposure to the leaves can cause anemia (lack of red blood cells) and other problems in cats. Symptoms of exposure include difficulty breathing, vomiting, diarrhea, and lethargy. The same symptoms can be caused by contact with any toxic plant, so be sure to keep your pet away from all plants until you can identify those that are safe.