#swamp  low land that is seasonally flooded; has more woody plants than a marsh and better drainage than a bog
  supertype:  wetland  a low area where the land is saturated with water
  instance:  Everglades
  subtype:  Okefenokee_Swamp  a large swampy area of northeast Florida and southeast Georgia
  subtype:  slough.swamp  a stagnant swamp (especially as part of a bayou)

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