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Wetland types

Bottomland hardwoods

Distribution page 3 of 7

These forests were once the dominant forest type in the southeastern United States. Bottomland hardwood forests exist mainly in the lower Mississippi River floodplain in Louisiana, Mississippi, and Arkansas. There were 8.5 million ha prior to European settlement, now there are fewer than 2 million ha. Louisiana’s Atchafalaya River Basin is the third largest continuous wetland area in the U.S. and contains 30% of all the remaining bottomland forest in the Mississippi River drainage.

Cypress swamps are found in the lower Mississippi River floodplain as far north as southern Illinois and western Kentucky as well as the Atlantic Coastal Plain. Bottomland forests dominated by white cedar are found along the Atlantic and Gulf of Mexico coastlines.