Acer triflorum Kom.
Acer triflorum means simply “three-flowered maple.” This species is native to northern China, Manchuria, and Korea. They are not found in the wild in North America.
Identification: Trees have light brown or cinnamon-colored bark, often peeling, and reach 20-30' (6.1-9.1 m) in height (up to a maximum of 45' (13 m). Leaflets are in groups of three, each about 2-3" (5-7.6 cm) long and 1-1½" (2.5-3.8 cm) wide. Leaves are brilliantly colored in the fall: reds, yellows, orange-reds, and purples. Flowers are in groups of three, in pinkish or greenish clusters. The fruits are samaras, in pairs, up to 1¼" (3.2 cm) long. These trees are difficult to propagate and rarely seen in North America, except in botanical gardens.
Acer triflorum on Erv Evans' site at the North Carolina State University College of Agriculture and Life Sciences
Acer triflorum at the University of Connecticut Plant Database
Acer triflorum at the University of Delaware Botanic Gardens
Acer triflorum at the Missouri Botanical Garden
Acer triflorum at the Great Hill Horticultural Foundation
Acer triflorum description by Thomas H. Kent, last updated 12 Oct 2018.
Range: Zones 3a-11: