Toxicity to pets

Many indoor and outdoor plants, often belonging to the Araceae family, contain insoluble oxalates i.e., microscopic crystals within the plant structure. Examples of plants that contain these crystals include Arrowhead, Calla lily, Chinese, Evergreen, Dieffenbachia, Dumbcane, Elephant’s Ear, Peace Lily, Philodendron, Pothos, Schefflera, and Umbrella Plant.

When pets chew these plants, the crystals are released causing irritation and pain to the pet’s lips, oral cavity, and throat. Drooling, gagging, and vomiting are common signs in animals following ingestion of this plant; in rare instances severe throat swelling resulting in breathing difficulty can occur.