2. Maple belongs to the genus Aceraceae, which is the common name of Aceraceae. There are 199 species of Aceraceae in the world, which are distributed in Asia, Europe, North America and the northern edge of Africa. China is also the country with the largest species of Aceraceae in the world, with 157 species.
3. It is distributed all over the country, mainly in the Yangtze River basin and its southern provinces, and is the modern distribution center of maple trees in the world. Many Acer plants are world-famous ornamental trees.