The habitats where flea sedge~(Carex pulicaris) grows:

Alpine and subalpine calcareous grassland
Blanket bog
Brownfield
Coastal floodplain grazing marsh
Hard cliff and cliff slope
High montane heath and snow bed
Limestone pavement
Lizard peninsula
Lowland calcareous grassland
Lowland dry heath
Lowland fen
Lowland heath
Lowland wet heath
Mountain ledge
Purple moor grass and rush pasture
Raised bog
Upland acid grassland
Upland calcareous grassland
Upland dry heath
Upland spring flush
Upland wet heath
Valley mire