Sugar gum

Eucalyptus cladocalyx, commonly known as Sugar Gum, is a species of eucalypt tree found in the Australian state of South Australia. It is found naturally in three distinct populations - in the Flinders Ranges, Eyre Peninsula and on Kangaroo Island. It has no known close relatives.

This specimen is growing in the garden at Old Government house, but judging by its size, it has been there long before OGH was built.