Wetlands
Wetlands are areas covered in water that support aquatic plants
They range from periodically flooded regions, to soil that is saturated with water during the growing season, to permanently flooded areas
Estuaries-occur at the mouths of rivers
Swamps-flooded areas dominated by trees
Marshes-flooded areas dominated by sedges and grasses
Bogs and Fens-have distinctive vegetation because their soil is either very alkali (fens), or very acidic (bogs).