Introduction to the bright-leaf aquatica: The bright-leaf azure is listed as one of the "Three Occurrences" vulnerable species by the country. It is a deciduous tree with dense growth of arrow bamboo and moss in the understory. It can intercept and store a large amount of rainwater and is a good resource for the country. The preferred tree species for water conservation forests. On the southwest side of Ruoliao Xian, at an altitude of 1,350 meters, there is a large bright-leaved azure tree on the hillside of the spire. It is more than 600 years old, 26 meters high, and 1.4 meters thick at breast height. Four people cannot hug it. It is the largest bright-leaf aquamarine tree found in East China so far.