Utricularia vulgaris sens. str.
U. vulgaris is found in oligotrophic and mesotrophic, base-rich waters. Habitats include sheltered bays in limestone lakes, ponds, ditches and pools in calcareous fens and grazing marshes, and flooded clay-, marl-, and gravel-pits. Flowering is temperature dependent, variable annually, and less frequent in the north of its range. Generally lowland, but upper altitudinal limit unknown.
The map is based largely on flowering plants together with records of vegetative plants identified by Taylor, and the range of the species is greatly underestimated. Distributional change is difficult to determine, but the species has declined in lowland England.
Eurosiberian Temperate element.
PLANTATT - Attributes of British and Irish plants. (.zip 1455KB) This dataset was compiled and published in 2004, and last updated in November 2008. Download includes an Excel spreadsheet of the attributes, and a PDF explaining the background and nomenclature. Note that the PDF version is the booklet as published, whereas the Excel spreadsheet incorporates subsequent corrections. A hardcopy can be purchased from the Centre for Ecology and Hydrology.