babul
Eucalyptus globulus.
Gum tree
The most common name for the eucalyptus tree is gum tree. This is because eucalyptus trees exude a sticky resin, or gum.
blue gum tree
Eucalyptus is the genera for (Australian) gum trees. They are members of the wider Myrtle family.[But not for rubber trees.]
Eucalyptus
Eucalyptus
Gun tree is the common name for the genus "Eucalyptus".
Despite its name, no species of gum tree, or eucalyptus, is used in making gum. The "Chewing Gum tree" is the nickname for the Sapodilla tree, which is native to Central and South America. Chewing gum is made from a thick, milky, latex juice called "chicle" which is extracted from the sap of the sapodilla tree.
A cabbage gum is a tree native to Australia, Latin name Eucalyptus amplifolia.
Eucalyptus papuana F.Muell