What kind of plant is this? There is a special fragrance, and there are many in Nanning. Please reply, thank you!

Sugar gum tree (scientific name: Alstonia scholaris), also known as elephant skin tree, lampstand tree, blackboard tree, milk tree, devil tree, etc. , belonging to the genus lampstand of Apocynaceae. Originated in South Asia with high temperature and humidity, the wood is soft and delicate, and the whole plant is rich in milk, from which chewing gum raw materials can be extracted, hence the name "Sugar Gum Tree". Wood can be used as blackboard material, so it is called blackboard tree.