Key to Michigan's Natural Communities

A. Distributed north of the climatic tension zone in northern Lower Michigan and the Upper Peninsula. Canopy dominated by black ash with lesser importance of red maple, American elm, silver maple, yellow birch, basswood, green ash, balsam fir, and northern white-cedar. Soils are neutral to slightly acidic, hydric, mineral soils and shallow muck over mineral soils. Occurring on poorly drained lakeplains, outwash plains, and fine- to medium-textured glacial till .... Northern Hardwood Swamp

B. Distributed south of the climatic tension zone in southern Lower Michigan. .... Continue

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