The river birch tree often is used for landscaping due to its graceful drooping limbs and attractive color. River birch is a fast-growing, deciduous semi-aquatic tree that reaches between 50 and 90 feet in height. Its diamond shaped, double-toothed leaves produce an erect or spreading canopy that covers an extensive area. The leaves turn yellow in the fall. When young, its peeling bark is silvery gray, before changing to pink, reddish-brown or black when mature. It produces flowers in the spring and winter, and small brown or green cones in the summer. Wildlife, such as birds and rodents, eat its seeds, and deer eat its twigs and foliage. Ruby-throated hummingbirds drink its sap.