A perennial herb growing on the margins of slow-flowing rivers, canals, lakes, flooded gravel-pits, in tall-herb fens and willow carr. It thrives in permanently wet, or periodically inundated, fertile soils and tends to avoid acidic conditions. 0-440 m (Lake Ferta, S. Kerry).
Although there have been local losses due to habitat destruction, this species is a good coloniser and can quickly become established in new sites. It is sometimes introduced to ponds and newly created wetlands. Its overall distribution is probably stable.
Eurasian Temperate element, but naturalised in N. America so distribution is now Circumpolar Temperate.
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.
Atlas text references
1986. Atlas of north European vascular plants north of the Tropic of Cancer. 3 vols.
1992. The biology of Canadian weeds. 100. Lythrum salicaria. Canadian Journal of Plant Science. 72:1305-1330.
1978. Vergleichende Chorologie der zentraleuropäischen Flora. Volume 2. 2 vols.