A perennial herb which occurs as a weed in cultivated ground and occasionally as well-established populations in damp grassy and rocky places, in woodlands, along tracks, paths and pavements and on rubbish tips. Generally lowland, but reaching 305 m on Slieve Gullion (Co. Armagh).
This species was introduced in 1829 and is frequent in cultivation. It was first recorded in the wild in 1890 (Cumbria) and was mapped by Perring & Sell (1968). There are more records since then, probably due to improved recording.
Native of Corsica, Sardinia and the nearby Italian island of Montecristo; possibly naturalised in Portugal, but rare in mainland Europe.
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
Atlas Supp (65a)