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Not sure what you a calling nectar, but the sap from the sweet gum can be chewed, although it is not really sweet.
Gum leaves are found on eucalyptus trees. In Australia, they are commonly called "gum trees".
Eucalyptus is the genera for (Australian) gum trees. They are members of the wider Myrtle family.[But not for rubber trees.]
Apart form the fact that Gum Trees (eucalyptus) can tap into and evaporate the water, their leaves/oil falls round the trees and will contaminate the water.
Birds peck holes in Sweet Gum trees because they are looking for food. The bark of the Sweet Gum is soft making it easy to peck while looking for small insects.
Tupelo
gum doesnt grow on trees, silly!
No animal eats gum trees. Koalas eat gum leaves and flowers, as do Ringtail possums and greater gliders, whilst wombats will sometimes eat the leaves and shoots around the base of very young trees. Possums and gliders will eat nectar-laden flowers, as will many species of parrots and honeyeaters.
Hackberry trees
No
hackberry trees
toxic waste gum
If you are talking about gum diggers in NZ, answer is Kauri trees.
Yes. The pioneers scraped the sap from the bark and used it as chewing gum
Gum leaves are leaves from the Eucalyptus tree. Australians commonly refer to Eucalyptus trees as gum trees.
Gum trees on average live to be 400 to 900 years old. However, some gum trees can live to be much older than this.
No
Toxic waste