Linda Pitkin / Branched Bur-reed (Sparganium erectum) watercolour illustration

Linda Pitkin / Branched bur-reed (Sparganium erectum) in pond, South West London, England, UK. June.

Linda Pitkin / Branched bur-reed (Sparganium erectum), South West London, England, UK. June.

Linda Pitkin / Branched bur-reed (Sparganium erectum) Langham Ponds SSSI), Runnymede (NT), Surrey, England, July.

Will Watson / Margined reed beetle (Donacia marginata) on Branched bur-reed (Sparganium erectum), Shatsky National Natural Park, Volyn Oblast, Ukraine, May.

Nigel Cattlin / Branched bur-reed (Sparganium erectum) male above and female flowers below on lateral branched stems, canal bank, Berkshire, England, UK, June