A perennial, rhizomatous herb of damp or wet, open habitats including marshy places, water- and fen-meadows, tall-herb fens, by rivers, streams, canals and ditches, in dune-slacks, wet hollows and seepages on sea-cliffs, damp woodland rides and roadside verges. It is found on a wide range of acidic and base-rich soil types. 0-325 m (Llyn Brianne, Cards.).
The distribution of P. dysenterica is stable.
Eurosiberian Southern-temperate element; it reaches its northern limit in eastern Denmark.
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.