Gum Tree, any tree that yields a sticky substance known as gum. The sour gum, also called tupelo, is common in the eastern United States. Other North American gum trees include the sweet gum and the eucalyptus, which was introduced into California from Australia. The sapodilla tree of southern Mexico and Central America is the source of a gum called chicle, which is used as the base for many types of chewing gum.
Poison ivy is often very difficult to spot. But if you come into contact with it, you'll soon know by the itchy, blistery rash that forms on your skin. Learn how poison ivy causes that rash, and how to get rid of it.
Plants that eat other creatures? It sounds like a genetic experiment gone awry. But there's actually nothing unnatural about it; carnivorous plants have been around for thousands of years. Find out all about the Venus Flytrap.