Eucalyptus
Eucalyptus globulus

The Australian koala wouldn't consider living without this healthful herb. . . literally. Eucalyptus leaves are the fuzzy marsupial's sole food source. Native to Australia, eucalyptus trees have also been vital to the survival to the aboriginal people there since earliest times. They chew the roots for their water in the dry outback and drink tea made from the leaves. A director of Melbourne's Botanical Gardens introduced this beneficial herb to Europe in the 1800s, where its oil became popular to support the respiratory system. Eucalyptus can be especially comforting when you have a cold. Remember, a little bit goes a looonnng way!