Key to Michigan's Natural Communities

A. Vegetation primarily submergent with leaves submerged or with leaves primarily submergent or floating on water surface during growing season. Occurring within shallow to occasionally deep waters of lakes and streams. Common submergent and floating-leaved plants include common waterweed (Elodea canadensis), water star-grass (Heteranthera dubia), milfoils (Myriophyllum spp.), naiads (Najas spp.), pondweeds (Potamogeton spp.), water crowfoots (Ranunculus spp.), wild-celery (Vallisneria americana), stoneworts (Chara spp. and Mitella spp.), honewort (Ceratophyllum demersum), bladderworts (Utricularia spp.), water lily (Nymphaea odorata), yellow pond-lily (Nuphar spp.), and water shield (Brasenia schreberi) .... Submergent Marsh

B. Vegetation primarily emergent with leaves protruding above the water (when present) during growing season. Occurring along the shores of lakes and streams or in depressions where standing water occurs throughout the year. Common emergent plants include cat-tails (Typha angustifolia, T. latifolia), bulrushes (Schoenoplectus spp.), sedges (Carex spp.), manna grass (Glyceria spp.), bur-reed (Sparganium spp.), water-plantain (Alisma plantago-aquatica), spike-rush (Eleocharis spp.), cut grass (Leersia oryzoides), and wild-rice (Zizania spp.) .... Emergent Marsh

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