The habitats where variable leaved crestwort~(Lophocolea heterophylla) grows:

Altantic hazel wood
Atlantic oak wood
Brownfield
Caledonian forest
Lowland dry oak and birch wood
Lowland mixed oak and ash wood
Raised bog
Turlough and fluctuation mere
Upland birch wood
Upland mixed ash wood
Wet woodland
Wood pasture