|Betula populifolia is a small to medium birch tree, 20-40' in height, 10-20' spread. Growth habit is narrow, with slender branches, open, in the wild it usually forms multiple stems. It is one of the smallest and shortest lived birches, averaging 15-25 years. Thin smooth bark is reddish when young, grayish white on mature trees, does not really peel. One of the earliest trees to leaf out, with pretty spring green foliage, and dark green summer foliage that turns yellow in fall. Male catkins are 2-3" long, borne singly at branch tips, one of the distinguishing features of this birch. Quite tolerant of poor soils, and either wet or dry conditions, but does not like competition. Subject to the usual birch problems. Best used for naturalizing, not in the formal landscape. Native from Nova Scotia to Ontario, Delaware.