Description: This is one of the so-called 'water-crowfoots' which are aquatic white-flowered relatives of buttercups growing in streams and rivers. It is similar to Ranunculus penicillatus, a very common aquatic plant of rivers, but with somewhat longer submerged leaves and no floating leaves. It is confined to one single river in Ireland: The Six Mile Water, County Antrim, where it is abundant, and hybridizes with Ranunculus penicillatus.

All names: Ranunculus fluitans Lam.

Distribution Map from NBN: Ranunculus fluitans at National Biodiversity Network mapping facility, data for UK.

iNaturalist: Ranunculus fluitans at iNaturalist World Species Observations database.