It is a eucalyptus variety ~ eucalyptus citriodora. Eucalyptus citriodora (Latin scientific name: Eucalyptus citriodora. F) is an evergreen tree, with a height of 40m and a DBH1.2m. Its trunk is tall and straight, and its bark is smooth and white, so it is known as the "fairy in the forest". Originally from Australia, it has been introduced to China for nearly a hundred years. It is cultivated in China, South China, Fujian, Zhejiang, Yunnan and Sichuan. Being fond of light, adaptable to climate and soil, drought-tolerant, fast-growing and high in wood yield, it is an important afforestation tree species in southern China. It is suitable for afforestation in the lower part of southern hilly and coastal mountainous areas and surrounding greening. At the same time, it is also an important fast-growing timber tree species and excellent aromatic oil tree species in southern China. Rich in aromatic substances.