A shortly stoloniferous perennial herb of thin, basic to mildly acidic soils. Its lowland habitats include chalk and limestone grassland, heathland, coastal cliff-tops, sand dunes and machair. In upland areas, habitats include rock ledges, crags, streamsides, screes, well-drained acidic grasslands, heathy pastures and dwarf-shrub heaths. 0-885 m (Macgillycuddy`s Reeks, S. Kerry).
A. dioica declined markedly in the century before the 1962 Atlas, and there have been further losses since then. Most losses are due to the ploughing of its habitats, or to intensification of grassland management. It is now a mostly coastal and upland species in Britain.
Eurasian 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.