European Black Alder

Alnus glutinosa

Owner: Gary Clarke
Nominator: Gary Clarke
Height: 14 m (45.9 ft)
Diameter: 74.2 cm (29.2 in)
Circumference: 233 cm (91.7 in)

Description

The European Black Alder is a member of the birch family and was introduced to eastern North America in colonial times. This tree ranges in size from a large shrub to a large tree. It has escaped cultivation and grows naturally on low-lying lands. Its rapid growth, tolerance for acidic soils, and nitrogen-fixing role make it desirable for shelter belts, reclamation areas, landscaping and biomass production. It has a broad natural range that includes most of Europe and extends into North Africa, parts of Asia and western Siberia. It is naturally localized throughout the northeastern United States and maritime Canada. Associated forest cover often includes willow species, ash, birch and oak. It is a valuable species for wildlife as its cones open gradually and release seed throughout the winter, making it a dependable source of food for seed-eating birds such as pine siskins and goldfinches. (Source: Silvics of North America )

European Black Alder
(Source: Tree Canada )