Description: A similar plant to the rather larger Sparganium erectum, and found in the same sorts of situations. It differs in having an unbranched inflorescence.

All names: Sparganium emersum Rehmann; Sparganium simplex Huds.; Sparganium diversifolium Graebn.

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

iNaturalist: Sparganium emersum at iNaturalist World Species Observations database.