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Plate 76.— Classification: system Palustrine, class Scrub-Shrub Wetland, SUBCLASS Broad-leaved Deciduous, DOMINANCE type 

 Alnus tenuifolia, water regime Temporarily Flooded, water chemistry Fresh, SOIL Mineral. Subordinate plants include feltleaf 

 willow (Salix alaxensis) and balsam poplar (Populus balsamifera). Shrubs are nearly 6 m (20 ft) tall, the height that separates 

 Scrub-Shrub from Forested Wetland. This site is flooded only for brief periods after snowmelt and during times of most rapid 

 melting of nearby glaciers. (Tanana River, Fairbanks North Star Borough, Alaska; July 1985; Photo by F. C. Golet) 



