Size: tree, 15-30' average height and spread at maturity
Buds: valvate, stalked, often reddish purple, ribbed scales, terminal present or absent
Leaves: deciduous, opposite, 5-8" long and wide, roundish, simple, 3 lobes at apex, margins serrate, bright green, smooth, green, few lenticels, u-shaped leaf scars, almost encircling twig
Flowers: mostly dioecious, yellow or yellow-green
Fruit: double samara, ripening in fall
Bark: older wood conspicuously striped white on base of green
