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Basin Marsh - (synonyms: prairie, freshwater marsh).
Basin Marsh is characterized as an herbaceous or shrubby wetland situated in a relatively large and irregular shaped basin. Typical plants include common reed, panicum, cutgrass, southern watergrass, pennywort, Spanish needle, redroot, soft rush, American lotus, water primrose, arrowhead, coastal plain willow, saltbush, elderberry, spikerush, knotweed, buttonbush, and dog fennel. Typical animals include two-toed amphiuma, lesser siren, greater siren, cricket frog, green treefrog, bull frog, pig frog, leopard frog, alligator, eastern mud snake, green water snake, banded water snake, striped swamp snake, black swamp snake, great blue heron, great egret, snowy egret, little blue heron, tricolored heron, bald eagle, and northern harrier.
Basin Marshes usually develop in large solution depressions that were formerly shallow
Fire maintains the open herbaceous community by restricting shrub invasion. The
Basin Marshes are associated with and often grade into Wet Prairie or Lake communities. They may eventually succeed to Bog, if succession is not reversed by a muck fire. Many of the plants and animals occurring in Basin Marshes also occur in Floodplain Marsh, Slough, Swale and Depression Marsh. Large examples of the Depression Marsh, in fact, may be very difficult to distinguish from small examples of Basin Marsh.
Normal hydroperiods must be maintained, or Basin Marsh vegetation will change.