Blue gum

Blue gum is a common name for subspecies or the species in Eucalyptus globulus complex, and also a number of other species of Eucalyptus in Australia. In Queensland, it usually refers to Eucalyptus tereticornis , which is known elsewhere as forest red gum.

Eucalyptus globulus

• Tasmanian blue gum: Eucalyptus globulus (syn. E. globulus subsp. globulus)
• Gippsland blue gum: Eucalyptus pseudoglobulus (syn. E. globulus subsp. pseudoglobulus)
• Spotted blue gum: Eucalyptus maidenii (syn. E. globulus subsp. maidenii)
• Southern blue gum: Eucalyptus bicostata (syn. Victorian blue gum or E. globulus subsp. bicostata)

Other Eucalyptus species

• Inland blue gum: E. leucoxylon
• Large-fruited blue gum: E. leucoxylon
• Mountain blue gum: E. cypellocarpa , E. deanei
• Round-leaved blue gum: E. deanei
• South Australian blue gum: E. leucoxylon
• Sydney blue gum: E. saligna
• Other species, such as shining gum ( E. nitens), and the Sydney blue gum ( E. notabilis ), are sometimes regarded as blue gums
• Historically, the Dictionary of Australian Words also mentions E. botryoides , E. diversicolor , E. goniocalyx and E. viminalis (the famous "manna gum") in its list of "blue gum" species. ^[1]

References

1. Edward A. Morris (1898). Dictionary of Australian Words, orig. Austral English.