Linked from
The 8 pages that link to Marsh, each with the reason it gives.
WetlandBroader topic: Marshes are open wetlands where non-woody vegetation predominates.
PeatlandCompared with: Marshes are wetlands, but they do not necessarily accumulate peat.
BogCompared with: Marshes usually lack the thick peat and nutrient-poor conditions typical of bogs.
MoorhenRelated: Marsh vegetation provides moorhens with food, cover, and nesting sites.
Typha latifoliaRelated: Shallow marshes are characteristic habitat for broadleaf cattail.