A scrambling, evergreen perennial of hedge banks, scrub, walls, cliffs and other rocky places near the coast, or very locally on calcareous soils further inland. Lowland.
Although geographically restricted, this resilient species can be frequent where it occurs and shows no change in its distribution since the 1962 Atlas, although it is now much better recorded along the coast of S. Ireland. Relaxation of grazing on coastal cliff-tops may have led to an increase in available habitat.
Count of 10km squares in Great Britain: 240
Count of 10km squares in Ireland: 79
Count of 10km squares in the Channel Isles: 7
Atlas Change Index: 0.17
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.