(Alder) 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. Alders are often seen with many trunks; however, they can be trained when young to have only one. A. cordata (Italian Alder) is an attractive tree that grows from 30 to 5... Found on http://www.encyclo.co.uk/local/10004