| Term | Definition |
| halophyte | plants that live in highly salty soil |
| hydrophytes | plants that have special adaptations to allow then to live in areas often saturate by water |
| spartina | type of salt marsh cord grass |
| dentritus | non-living particulate organic material |
| hammock | is a group of trees in a marsh |
| estuary | where sea water meets freshwater |
| brackish water | a mix of salt and fresh water |
| substrate | soil |
| hydric soil | different physically and chemical from dry soils space between soil grains are filled with water |
| open wetland system | flow of materials in and out of the system |
| anerobic | little or no oxygen |
| salinity | salt levels |
| salt pans | so much salt that nothing can live |
| decomposers | break down tissues and release plant nutrients |
| consumers | eat tissues of the marshes |
| plankton | small animals that suspend life |
| zooplankton | microscopic animals |