The habitats where pebbled pixie-cup~(Cladonia pyxidata) grows:

Alpine and subalpine calcareous grassland
Brownfield
Calaminarian grassland
Caledonian forest
High montane heath and snow bed
Lowland calcareous grassland
Lowland dry acid grassland
Lowland dry heath
Lowland wet heath
Montane dwarf shrub heath
Mountain ledge
Sand dune
Upland calcareous grassland
Upland dry heath
Wet woodland