Description: Water milfoils are submerged aquatic species with feathery leaves, although the flower spikes are held above the water. The flowers are small and unremarkable.

All occur in still or slow-moving water (lakes, ponds, flooded quarries, drainage ditches, slow streams etc). Myriophyllum verticillatum is very rare except around Lough Erne in Co Fermanagh.

All names: Myriophyllum verticillatum L.; Myriophyllum pectinatum DC.

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

iNaturalist: Myriophyllum verticillatum at iNaturalist World Species Observations database.