Bladderwort agg. - Utricularia vulgaris agg.


According to the BSBI, Greater Bladderwort (Utricularia vulgaris) can only be distinguished from Bladderwort (Utricularia australis) reliably when flowers are present, so for records where this is not the case we have decided to treat the two as an aggregate. Examination of a specimen is likely to be needed for accurate identification. The plants are free floating with much branched green leaves that have bladders on.

Identification difficulty

Found in still or sluggish, acidic to basic, nutrient-poor waters over inorganic or peaty substrates.

When to see it

Flowering is irregular and may not occur in some years in any given population.

Life History

Insectivorous perennial.

UK Status

Widespread but not particularly common in Britain.

VC55 Status

Both of the aggregate species are uncommon in Leicestershire and Rutland and were not recorded in the 1979 Flora survey of Leicestershire.

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Leicestershire & Rutland Map


Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015

UK Map