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Public-images-osm logo.svg wetland
Northern Leopard Frog (Lithobates pipiens).jpg
Type of wetland. Show/edit corresponding data item.
Group: natural
Used on these elements
should not be used on nodesshould not be used on waysmay be used on areas (and multipolygon relations)should not be used on relations (except multipolygon relations)
Documented values: 13
Status: approvedPage for proposal

This key is used to refine elements tagged with natural=wetland. Main wetland types include swamps, marshes, bogs and fens. Sub-types include mangrove, carr, pocosin, and varzea.

See also wetland on Wikipedia.


Types of wetland
Tag Rendering Description Picture
Open habitats
wetland=marsh Natural wetland marsh.png Marshes are periodically saturated, flooded, or ponded with water and characterized by herbaceous (non-woody) vegetation adapted to wet soil conditions. Use this for non-tidal marshes and wetland=saltmarsh for tidal marshes. Cepkeliu marsh.jpg
wetland=reedbed Natural wetland reed.png Reed-bed, an inundated area dominated by certain tall non-woody plants (reeds, bulrushes). Schweinesand.jpg
wetland=saltmarsh Natural wetland saltmarsh.png Coastal marshes, exposed to tidal inundation with sea water, therefore characterized by herbaceous plants with special adaptations to saline environments. Ditches/channels in these marshes should be tagged with waterway=ditch. Grid-like ditches in saltmarshes were often dug to drain standing water pools in the marsh and therefore eliminate salt marsh mosquitoes. [1] Culbin Salt Marsh - - 185128.jpg
wetland=tidalflat Natural wetland water.png Coastal wetlands that form in intertidal areas where sediments have been deposited by tides or rivers. In this kind of wetlands you will find a lot of birds, crabs, mollusks.

See mudflat on Wikipedia.

Don't use this wetland for sand or rocks visible at low tide because there is no life here. Use natural=sand/shoal/bare_rock/rock + tidal=yes instead.

Stewart Island Oban Mudflats.jpg
wetland=wet_meadow Natural wetland marsh.png A semi-wetland meadow which is saturated with water throughout much of the year. Can be caused by poor drainage or the receipt of large amounts of rainwater or melted snow or in riparian zones. Vessertal wiesenknoeterich.jpg
Forested habitats
wetland=swamp Natural wetland swamp.png An area of waterlogged forest, with dense vegetation. Cypresses.jpg
wetland=mangrove Natural wetland mangrove.png Mangrove swamps are coastal wetlands characterized by salt-tolerant trees, shrubs, and other plants growing in brackish to saline tidal waters Mangroves in Puerto Rico.JPG
wetland=bog Natural wetland bog.png Bogs are peat-filled depressions that receive their water and nutrients from rainfall. They are frequently covered in shrubs rooted in the sphagnum moss and peat. EE-Lahemaa-Bagno Viru.jpg
wetland=fen Natural wetland marsh.png Fens are groundwater-fed peatforming wetlands covered by grasses, sedges, reeds, and wildflowers. Wicken-Fen-Hide.jpg
wetland=string_bog Natural wetland bog.png A string bog or strong mire is a bog consisting of slightly elevated ridges and islands, with woody plants, alternating with flat, wet sedge mat areas. String bogs occur on slightly sloping surfaces, with the ridges at right angles to the direction of water flow. Seney National Wildlife Refuge - 1967 (5405011148).jpg