Eucalyptus calophylla, commonly known as the Marri tree, is an iconic Australian native tree species known for its stunning creamy white flowers and towering height. It is also known as the "red gum" due to the reddish-brown sap it produces. Some synonyms for Eucalyptus calophylla include the Port Gregory gum, (in Western Australia), Marri gum tree, and the Silver Gum. The leaves of this tree are long and narrow and give off a subtle, pleasant aroma when crushed. The Marri tree plays an important role in the ecology of the southwest of Western Australia, providing a habitat for a vast array of bird, mammal and insect species.