Eucalyptus (Eucalyptus globulus) Eucalyptus oil is derived from the namesake tree that is a tall, evergreen that grows to over 250 feet tall. Farmers collect the leaves that the tree sheds, and they are steam distilled. This well established system has provided a respectable living to a large number of small farmers in China. It has cooling, refreshing and purifying properties and camphor like, woody aroma. This top note oil blends well with lavender, lemon, and cedarwood.