Introduction to Yunnan Horse Chestnut: Yunnan Horse Chestnut, a deciduous tree, is endemic to the limestone mountains in southeastern Yunnan. It grows quickly and has a straight shape. It can be used as afforestation tree species in limestone mountains. Its crown is round and umbrella-shaped, with large flowers and beautiful leaves. It is an excellent street tree and garden tree species. Xiaoqiaogou in Xichou, Yunnan has been designated as a nature reserve and should be listed as a protected object and vigorously introduced and cultivated.