Scribbly gum is a name given to a variety of different Australian Eucalyptus trees which play host to the larvae of scribbly gum moths which leave distinctive scribbly burrowing patterns on the bark.
Trees often referred to as scribbly gums include:
Many other Eucalyptus trees have scribbles and are not known as "scribbly gums", such as Eucalyptus pilularis (blackbutt),Eucalyptus saligna (Sydney blue gum), Eucalyptus stenostoma (Jilliga ash), Eucalyptus pauciflora (snow gum) and Eucalyptus fraxinoides (white ash).