From OpenStreetMap Wiki
|wetland = reedbed|
|An inundated area dominated by certain tall non-woody plants (reeds, bulrushes, cattail).|
|Used on these elements|
|Tools for this tag|
is a flooded area dominated by some tall non-woody plants such as reeds and bulrushes. Similar to a marsh but with tall vegetation and thus difficult to walk through.
How to Map?
This could be included as an inner or outer part of a multipolygon relation if intermixed with firm land or open water areas.