A densely tufted perennial herb of pastures, heathy grassland and moorland, favouring mildly acidic soils. It is also found in calcareous swards, including chalk and limestone grassland, but is then rooted into more acidic, superficial or leached horizons. It is frequent too in damp montane grassland. It spreads by seed and seems to have a persistent seed bank. 0-595 m (Tal-y-fan, Caerns.) and possibly at 1040 m on Macgillycuddy`s Reeks (S. Kerry).
D. decumbens, mapped as `all records` in the 1962 Atlas, has declined in many areas of England and Ireland since 1950, presumably with the loss of permanent pastures.
European 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.