1. Color: the new leaves of Japanese red maple are bright red. When autumn comes, the color of the leaves will be darker. China's red maple has obvious difference on this point. It is green when it grows up, and it will turn purple in autumn.
2. Size: the leaves of Japanese red maple are slightly larger, about 8-14cm in diameter, about 7-11 cracks. The leaves of Chinese red maple are smaller, about 5-10cm in diameter, and 5-9 cracks in palms.
The flower diameter of the former is 1-1.5cm, the pedicel is relatively long and thin, slightly larger than that of the latter, and the flower diameter of the latter is 6-8mm. Florescence also slightly different, the former florescence earlier, from April began, with the leaves at the same time.
The former has stronger cold tolerance, faster growth speed and better adaptability. New plants are often obtained by sowing or cutting, but the cutting technology is relatively strict, and shade should be paid attention to. The latter can't resist the cold winter, and is usually grafted with green maple.
