Unbranched Bur-reed - Sparganium emersum

Medium height plant, with erect or floating stems. Leaves triangular in section not keeled. Inflorescence simple, unbranched, female clusters 3 to 6 the lowermost often stalked. Male clusters 3 to 10 separate from one another like the female, style straight.

More often recorded as floating leaves; sometimes reluctant to flower, and flowers often part submerged in water

Freshwater margins.

July and August.

Perennial.

Widespread in Britain but not as common as Branched Bur-reed.

Occasional in Leicestershire and Rutland. In the 1979 Flora survey of Leicestershire it was found in 49 of the 617 tetrads.