A rhizomatous perennial herb, found in sandy or gravelly wet runnels and depressions in saltmarshes, and in brackish ditches and dune-slacks. It also occurs on rocky shores, in freshwater seepages and beside streams where they debouch onto the beach. Lowland.
Most of the losses of B. rufus around the Irish Sea and along the E. coast of Scotland took place before 1930, and the distribution now appears to be generally stable. It may still be present in some of the more remote 10-km squares in which it has not been seen since 1970.
European Boreal-montane element; also in C. Asia and N. America.
Light (Ellenberg): 8
Moisture (Ellenberg): 8
Reaction (Ellenberg): 7
Nitrogen (Ellenberg): 4
Salt Tolerance (Ellenberg): 5
January Mean Temperature (Celsius): 3.8
July Mean Temperature (Celsius): 13.6
Annual Precipitation (mm): 1371
Count of 10km squares in Great Britain: 367
Count of 10km squares in Ireland: 74
Count of 10km squares in the Channel Isles: 0
Atlas Change Index: -0.53
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.