Spotted gum usually refers to the Australian tree species Corymbia maculata but may also refer to other closely related species within the genus Corymbia as follows: Corymbia citriodora (usually referred to as the lemon-scented gum) Corymbia henryi (large-leaved spotted gum) Corymbia maculata (spotted gum) Corymbia mannifera (mountain spotted gum or red spotted gum)