Endangered

Japanese maple (Acer pycnanthum) and American maple (Acer pycnanthum) are both members of the Acer genus in the Sapindaceae family, characterized by their beautiful autumn foliage. In spring, Japanese maple blooms with red flowers before its leaves open, which is the origin of its Japanese name. However, these trees look similar and can be difficult to distinguish. Although there are differences in leaf size and shape, there is considerable individual variation, so differentiation is not always easy. This article focuses on the classification of Japanese maple and American maple.