The habitats where crowberry~(Empetrum nigrum) grows:

Alpine and subalpine calcareous grassland
Blanket bog
Brownfield
High montane heath and snow bed
Limestone pavement
Lowland dry acid grassland
Montane dwarf shrub heath
Montane scrub
Mountain ledge
Raised bog
Upland calcareous grassland
Upland dry heath
Upland spring flush