The Satsuma tree, also known as Citrus unshiu, is a popular fruit tree that is native to Japan. When it comes to synonyms for the Satsuma tree, there are a few terms that can be used interchangeably. For example, some people refer to this tree as a mandarin orange tree or a tangerine tree. Others might describe it as a citrus tree or simply as a fruit tree. Regardless of the terminology used, the Satsuma tree is prized for its juicy, sweet fruit, which is easy to peel and eat. It is a great addition to any home garden or orchard, and is commonly used in cooking and baking.