Eucalyptus/ˌjuːkəˈlɪptəs/ Definition 1 of 2Pro Tip 1/3Native Habitat Eucalyptus trees are native to Australia, providing context to Australian flora and fauna. Many Australian animals, like koalas, feed on eucalyptus. Pro Tip 2/3Cultural Symbol Eucalyptus is a cultural icon in Australia, often mentioned in literature and symbols. Australian souvenirs often feature eucalyptus trees. Pro Tip 3/3Fast Growing Eucalyptus grows quickly and is used for timber, but it's often not mentioned directly. Sustainable furniture companies may use eucalyptus wood.