Acer circinatum Monroe
Monroe Vine Maple
- Deciduous tree, 10-13 ft (3-4 m), multistemed, shrubby, wide spreading, wider than tall, stiff, purplish branches. Opposite, simple leaves, 6-10 cm wide, seven-lobed, deeply incised to the base, yellow in fall.
- Sun or deep shade.
- Hardy to USDA Zone 5 Not common.
- Found by Warner Monroe of Portland in the headwaters of the McKenzie River in the Cascade Mountains of Oregon. He layered the plant, brought it into cultivartion, and later it was registered. It was named by Brian Mulligan, former director of the Washington Park Arboretum, Seattle (Jacobson, 1996; van Geldereen and van Geldereen, 1999).