According to the textual research of the experts, there are totally two king tea trees in Menghai County. When you study in China, you may be told by Chinese people that the finding of the king tea trees confirms that Xishuang Banna is the original producing area of the tea leaves in the world. Foreigners who study in China should go there to see that the trees because it is also the earliest place that human planted tea trees.
The oldest one is in the original forest of Dahei Mountain. The tree is as high as 34 meters. The circumference is 3.3 meters, with the diameter of more than one meter. If you study in China, you may have heard that the age of this tree is more than 1700 years, that is to say, grown from the Three Kingdoms period. Another tree that students who learn Chinese in China should know is in the Nannuo Mountain, one of the six Tea Mountains famous for Pu‘er tea. The height of the tree is 5.4 meters, with a diameter of 1.38 meter. Planted in Song Dynasty, it is 800 years old. Both of them have higher theine containment than other trees.