Eucalyptus globulus, the Tasmanian bluegum, southern blue-gum or blue gum, is an evergreen tree, one of the most widely cultivated trees native to Australia. They typically grow from 30–55 m (98–180 ft) tall. The tallest currently known specimen in Tasmania is 90.7 m (298 ft) tall. There are historical claims of even taller trees, the tallest being 101 m (331 ft).
he bark sheds often, peeling in large strips. The broad juvenile leaves are borne in opposite pairs on square stems. They are about 6 to 15 cm long and covered with a blue-grey, waxy bloom, which is the origin of the common name