|Acer japonicum is a tree in its native habitat and a large tree-like shrub in cultivation. This bushy, deciduous tree with rounded mid-green leaves turn red in the autumn. Small, red-purple flowers appear in April in long drooping corymbs. Leaves tend to scorch in hot, dry weather.
The cultivar 'O Taki' is a hardy, treelike shrub with dark green, circular, lobed leaves. The lobes are divided to the middle of the blades and lie closely together. In the autumn, the leaves change to rich crimson to orange to yellow.