The habitats where comb moss~(Ctenidium molluscum) grows:

Alpine and subalpine calcareous grassland
Altantic hazel wood
Brownfield
High montane heath and snow bed
Limestone pavement
Lowland calcareous grassland
Lowland dry heath
Lowland fen
Lowland mixed oak and ash wood
Montane scrub
Mountain ledge
Purple moor grass and rush pasture
Rocky slope
Scree
Upland calcareous grassland
Upland dry heath
Upland mixed ash wood
Upland spring flush
Upland wet heath
Yew wood