Description: Within Northern Ireland, this robust umbellifer is confined to the Lough Erne basin in Co Fermanagh. In Ireland as a whole it is a plant of tall-herb fen mainly associated with the river basins of the Shannon and Erne.

All names: Sium latifolium L.

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

iNaturalist: Sium latifolium at iNaturalist World Species Observations database.