Acer is a genus of trees and shrubs commonly known as maples. The genus is placed in the family Sapindaceae. There are approximately 132 species, most of which are native to Asia, with a number also appearing in Europe, northern Africa, and North America.

Suminagashi has a broad upright growth habit with bright red new leaves in the spring, turning bronze-green in summer, finally crimson in autumn. This is a large leaf cultivar with seven lobes, growing to a maximum height of about 1.8 to 3 meters.