What trees are planted on both sides of streets in cities such as Hainan, Guangxi and Fujian?

There are coconut trees, royal palm, fake betel nut and oil palm, mostly palm plants! They are all tree species suitable for growth in tropical areas. Even if transplanted to Beijing, it can't survive. The critical growth temperature of tropical tree species is generally 10- 15 degrees, below which the growth will stop, and below 5 degrees, the roots will be damaged or even necrotic. If you want to see this plant every day, come and live in Hainan. People can wear clothes when they are cold. This tree is not as flexible as people. It doesn't want them to grow wherever they want. If you move to Hainan like an apple in the north, it will not bear fruit, or it will bear small, green and astringent fruit.