Alnus rubra, 1 gal.
Description: Red alder, a fast-growing member of the birch family, can reach 40 ft in 10 years. Considered a pioneer species, it spreads vigorously and tolerates a wide range of light and soil conditions, including seasonal flooding and low nutrients. It can form thick stands which sport stunning fall color, transitioning to graceful bare trunks in the winter. Interestingly, its bark appears white due to lichens whose presence has been used as biomonitors of air quality.
photo credit: Alnus rubra/Red alder, Oregon alder, Rosewoman, Flickr, (CC BY 2.0)
photo credit: alnus rubra, Gertjan van Noord, Flickr, (CC BY-ND 2.0)