Hello, please let us know where this plant is located. If it is outside of the US - what country? If it is inside the US, what state and county? This way it will be easier for us to diagnose the problem and assign the question to the best expert.
Thank you for getting back to me. This tree is in Hue City, Vietnam. Hope it'll help.
Thank you and regards,
I don't recognize the plant by its foliage. Have you ever seen flowers or fruit on it? Any information about or pictures of flowers or fruit would give us a better chance at being able to identify it.