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Smooth white to pale grey bark marked with distinctive dark meandering scribbles left by the larvae of the scribbly gum moth. Usually a crooked, low branching tree rather than a tall straight one. Grey green leaves and small white flowers in summer.
Common on poor sandstone soils and ridgetops through the Northern Beaches, Ku-ring-gai, Hornsby and the Lane Cove valley. A frequent remnant tree in bush fringe gardens at Belrose, Davidson, St Ives and Terrey Hills.
Modest size makes the physical work straightforward, but the approval side is the hard part. As a Sydney sandstone native in mapped bushland it attracts strong council protection and frequently sits within an endangered ecological community. Expect an ecological assessment as well as an arborist report on bush fringe properties.
No. They are feeding trails left by scribbly gum moth larvae between the old and new bark layers. They cause no structural harm to the tree.
Height alone rarely helps. In Ku-ring-gai the threshold is 5m or a 150mm trunk at ground level, and Hornsby captures anything over 3m or inside mapped native vegetation, so most established specimens need a permit.
