The habitats where common bladderwort~(Utricularia vulgaris) grows:

Fast flowing river and stream
Lowland fen
Marginal and inundation
Nutrient rich eutrophic lake
Peat stained (dystrophic) water
Pond ditch and canal
Reedbed
Sluggish river and stream
Upland lake loch and tarn
Upland spring flush