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In the plant classification system, tea tree belongs to the angiosperm phylum, dicotyledonous plants, primitive perianth subclass, Camelliaceae, Camelliaceae, Camellia sinensis. According to research, the tea tree belongs to the angiosperms originated in the early Mesozoic, dicotyledonous plants flourished in the middle of the Mesozoic, Camellia sinensis fossils appeared in the Cretaceous strata at the end of the Mesozoic. jVB Tea Net
In the Camelliaceae, Camellia sinensis is a relatively primitive species group, which originated at the end of the Mesozoic era to the early Cenozoic era, and the tea tree in the Camellia sinensis genus is a relatively primitive species. Accordingly, botanists analyze and deduce that the origin of the tea tree should have 60 million to 70 million years of history. jVB Tea Network
China is the origin of the tea tree, the center of Dian, Qian, Sichuan and other provinces and regions adjacent to the area. As a result of the geological evolution in the middle of the Tertiary period, there was an upward movement of the Himalayas and the rise of the Hengduan Mountains in the southwest. As a result of the uplift as well as the glaciation and flooding that occurred at that time, folded and fractured intermountain valleys were formed. In this way, due to the influence of vertical climate, making the original tropical within the same region, both tropical and subtropical, and temperate and frigid, so that the tea tree appeared homologous isolation separation phenomenon. jVB Tea Network
In this way, due to the differences in geographic and climatic conditions in which the tea tree is located, and after a long history of reproduction process, caused by the slow physiological changes in the tea tree itself and material metabolism of the gradual changes in the tea tree, so that the tea tree to adapt to the climate, soil, and to change the morphology of their own structure and metabolism of the type of development, the formation of the tea tree of the different ecological types. jVB Tea Network