Red alder is a fast growing medium sized deciduous tree with numerous applications.  Alnus rubra provides cover and forage for many species.   Red alder is an excellent species for re-establishing woodlands.  The trees are used in forested riparian buffers to help reduce stream bank erosion, protect water quality, and enhance aquatic environments.  Plantings of red alder are effective in controlling erosion on steep slopes in disturbed areas.

Alnus rubra – Red Alder, Western Alder, Pacific Coast Alder, Oregon Alder, Western Alder
NRCS Plant Profile (.pdf)