The habitats where marsh bedstraw~(Galium palustre) grows:

Blanket bog
Brownfield
Coastal floodplain grazing marsh
Dune slack
Hard cliff and cliff slope
Limestone pavement
Lowland fen
Lowland meadow and pasture
Moist damp verges and banks
Nutrient rich eutrophic lake
Pond ditch and canal
Purple moor grass and rush pasture
Raised bog
Reedbed
Saline lagoon
Salt marsh
Sand dune
Turlough and fluctuation mere
Upland acid grassland
Upland birch wood
Upland rush pasture
Upland spring flush
Valley mire
Wet woodland