Blue Gum usually refers to the
subspecies or the
species in
Eucalyptus globulus complex, however it may also refer to a number of other species of
Eucalyptus in
Australia. Confusingly, in
Queensland it usually refers to
Eucalyptus tereticornis, which is known elsewhere as Forest Red Gum.
Other species are sometimes regarded as blue gums such as E. nitens, and the Sydney Blue Gum (E. notabilis),