Gum trees are also known as eucalyptus trees, particularly those native to Australia and nearby islands. In this region, gum trees are also called "stringybark trees." The trees are fast growing, and some species grow to be 300 feet tall and more than 24 feet in circumference.
Gum trees are so tough that they are able to grow in areas with poor soil or even drought. The trees have several uses. Some are grown for shade. Others are raised for medical purposes. The eucalyptus oil found in their leaves is an ingredient in expectorants and inhalants. The wood from gum trees is used for fuel, as well as building and fencing materials, and paper products are made from the bark.