Key to Michigan's Natural Communities

A. Vegetation forms distinct zones that typically include submergent marsh, emergent marsh, and wet meadow, with shrub and forested wetlands common inland from the shoreline. Submergent marsh and emergent marsh zones typically extend into open water, greater than 1 m (39 in) deep, of Great Lakes, connecting channels, or river mouths .... Great Lakes Marsh

B. Vegetation zonation less pronounced and not extending into open water, greater than 1 m (39 in) deep, of Great Lakes, connecting channels, or river mouths. .... Continue

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