Eucalyptus coriacea is also commonly referred to as the leather-leaved gum or the rusty gum. It is a species of eucalyptus tree that can be found in certain parts of Australia. It is known for its distinct, leathery leaves that are grey-green in color and its smooth, reddish-brown bark. Other synonyms for this species include Eucalyptus rosea, Eucalyptus marginata, and Eucalyptus populnea. The tree is popular for its essential oil, which is extracted from its leaves and used for medicinal and aromatherapy purposes. In addition to its practical uses, eucalyptus coriacea is also appreciated for its beauty and hardiness as a tree species.