White birch (Betula papyrifera)

Photo taken May 19, 2008 at 246 First Avenue. The bark was not peeling, so I am not 100% sure it is white birch. SImilar species European birch is white, but does not peel as readily. It also has black triangles below many branches. The leaf of European birch is shaped differently - more delicately. Trembling aspen bark is greenish-white, does not peel at all, and looks like the tree has been bandaged. List of trees and shrubs with alternate, simple, toothed leaves