Introduction to the Wangtian Tree: The Wangtian Tree, also known as the Sky Tree, belongs to the Dipterocarpaceae family and the genus Liu'an. It is a specialty and rare tree species that only grows in Yunnan, China. It is distributed in Bubeng and Guangnalixin in Xishuangbanna. It covers an area of 20 square kilometers from Zhai to Jingpiao. The trees are 40-60 meters tall and are mostly distributed in primitive valley rainforests and mountain rainforests. They grow in patches and form independent communities, forming a unique natural landscape. Ecologists regard them as the iconic tree species of tropical rain forests and are China's first-level protected plants. It is listed in the 2012 Red List of Threatened Species of the World Conservation Union (IUCN) ver3.1 - Endangered (EN).