|Acer pensylvanicum is a large shrub or small tree maple, 15 to 20 feet tall under cultivation, 40 feet in the wild. Spread is slightly less than height. Generally develops a short trunk, arching branches, broad and uneven crown with a flat top. Distinctive bark is greenish with white striations, giving the tree its name. New foliage is pink tinged, bright green for the summer and a vibrant yellow in the fall. Flowers are yellow, produced in late spring on 4- to 6-inch pendulous panicles. Prefers partial shaded woods, well drained soil, cool, moist and acidic. Subject to various maple diseases. A good choice for naturalizing in its native range, does not do well in adverse or urban conditions. Native from Quebec to Wisconsin, south to the northern areas of Georgia.