The genus Eucalyptus is native to Australia, and over 95% of all eucalyptus species are found there. They have been growing on the Australian continent for at least 50 million years, and have adapted to the unique climate and environment of the region.
Eucalyptus trees are well-suited to the Australian climate, which is characterized by hot and dry summers, and cool and wet winters. The trees have a deep root system that allows them to access water from deep in the ground, and waxy leaves that help them to retain moisture. They are also able to tolerate high levels of heat and sunlight.
In addition to their physical adaptations, eucalyptus trees also have a number of chemical defenses that protect them from pests and diseases. These chemicals include essential oils, tannins, and phenolics.
The combination of physical and chemical adaptations has allowed eucalyptus trees to thrive in Australia for millions of years. Today, they are a defining feature of the Australian landscape, and play an important role in the country's ecosystem.
