These quick-growing trees are commonly known as Alders. They are natives of Europe, North America and Asia. Alders grow well in moist soil near ponds and other wet ground. Its glossy green leaves grow 2 to 4 inches across. It has light grayish-white bark.
Alders produce catkins of yellowish-green flowers.
Male and female flowers are produced on the same tree in the spring. The male catkins are 2 to 6 inches in length. In the summer, the female catkins become brown, cone-like fruit that persists on the branches most of the year. They can be used in dried floral arrangements. Pruning should be done in the winter or early spring.