There are something like 700-900 different varieties of Eucalyptus trees (some are also called Gum Trees) and most of them are native to Australia & Tasmania.
The vast majority of the trees in Australia are Eucalyptus Trees. (And there are only about 30 species of those that Koalas will eat.) Click here for more about Koalas. Oh, and don't call them "Koala Bears" They are not bears, and this will really annoy any Aussie you meet. Just a little tip. They are marsupials, and have pouches like their cousins the Wallabies and Kangaroos.
|The guys are SO good looking in Sydney!|
|Scenic outlook, Noosa Heads|
Their root system allows them to filter the salty waters.
Also gives the crocs a nice hiding place.
|Buttressed roots, Daintree Rainforest|
|Staghorn fern attached to a host tree|