Eucalyptus

Used by Australia’s First Peoples as an antiseptic on wounds, eucalyptus was first recorded for medicinal use in Tasmania in 1792. It is estimated Eucalyptus originated between 35 and 50 million years ago. The tallest eucalyptus tree is just under 237 feet, known as world’s tallest hardwood. Eucalyptus covers about 70% of Australia’s forested land, and is eaten by koala bears, who eat over a pound of its leaves each day. 

Eucalyptus trees are known to use a large amount of water, and they were employed to drain areas with excess water and dry up places with prolific mosquito populations.