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Submerged Plants
These plants are completely underwater and are generally rooted in the
bottom sediment. If flowers exist, they may extend above the surface of
the water. Common species include:
Emergent Plants
These plants grow in shallow areas of lakes, ponds, rivers, and
ditches. Generally rigid, these plants do not need water for support.
Some of these plants are not considered truly aquatic but can survive
submerged in water or in saturated soils for extended periods of time.
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Algae
Closely related to fungi, the algae consist of over 17,000 different
species. The three main types of algae are:
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