A perennial, shortly rhizomatous herb of base-rich flushes in short grassland, mires, fens, dune-slacks and machair. The last two habitats support the coastal ecotype, var. condensata. 0-1005 m on Ben Lawers (Mid Perth).
The marked decline in the southern part of its range, mainly due to land drainage, was evident in the 1962 Atlas, and appears to be continuing. This has chiefly affected diploid populations. Its distribution in N. and N.W. Britain and Ireland (tetraploid populations) appears to be stable, though the reasons for the paucity of recent records in N. Scotland are unclear.
Circumpolar Boreo-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.
Atlas text references
The coastal ecodeme of Parnassia palustris L,
, Watsonia, Volume 17, p.139-143, (1988)
Atlas of north European vascular plants north of the Tropic of Cancer. 3 vols,
, Königstein, (1986)
Parnassia palustris L. in Scandinavia,
, Symbolae Botanicae Upsaliensis, Volume 28(1), p.1-128, (1987)
Jalas & Suominen (1999)
Vergleichende Chorologie der zentraleuropäischen Flora. Volume 1. 2 vols,
, Jena, (1965)
Cytogenetic evidence for autopolyploidy in Parnassia palustris,
, New Phytologist, Volume 134, p.641-648, (1996)