There are over 200 different varieties of Philodendron Plants, all with different size, color, and shape of leaves. The Heartleaf or Sweetheart Philodendron has dark green, shiny, heart-shaped leaves and looks great as a table or hanging plant. The Heartleaf Philodendron houseplants can even be trained as vines. Heartleaf Philodendrons are some of the most popular indoor plants we use in homes and offices because they thrive on neglect and are almost impossible to kill. Another great plus, Philodendron Plants remove air-born toxins such as formaldehyde from the air. All Philodendron houseplants are poisonousPlants are a great addition to homes and offices, but it’s important to know whether your plants are dangerous to children, pets, or even adults. Some plants contain chemicals such as oxalates, solanine, glycosides, or alkaloid lycorine that may cause vomiting, nausea, diarrhea, swelling and redness of the mouth, throat, and lips, and trouble breathing. Touching parts of certain plants, especially the sap, may cause various skin irritations. The weight and age of the human or pet involved, and the part and amount of plant eaten determine how severe the reaction to the toxins will be. Although plants may be listed as non-toxic, they can still cause individual allergic reactions. If there is any question after a houseplant has been ingested or touched immediately call the Poison Control Center 1-800-222-1222 The Handbook of Poisonous and Injurious Plants [Paperback]is an excellent reference to keep around if you have young children and pets. plant so please keep them away from small children and pets.