About Japanese Maple at OSU's Landscape Plants site
Native to Japan, Korea, and China.
There are over 120 cultivars.
Can grow to 50’ but is usually smaller.
Species’ leaves are green and 7-lobed; cultivar leaves vary by color and shape. Fall color for species is red.
Seed wings spread about 150°. Seeds are small.
Common in Portland and used frequently by landscapers.