Description: A very common plant of wet ditches, canals, fens, lake-sides, river-sides, ponds and similar wet habitats. Easily recognised, with its tall shoots reaching four feet or so, long, narrow keeled leaves, and a stem which carries a branched inflorescence of globular heads of male and female flowers. The female flowers develop into a bur-like structure which eventually breaks up into its separate fruits for dispersal.

All names: Sparganium erectum L.; Sparganium ramosum Huds.

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

iNaturalist: Sparganium erectum at iNaturalist World Species Observations database.