A perennial herb, highly tolerant of drought and shade, found in hedge banks and woods, and on sheltered scrubby sea-cliffs, mostly on calcareous substrates. Reproduction is by seed and by rhizomatous extension. Lowland.
The native range of I. foetidissima is much obscured by garden escapes and introductions. It is treated here as alien throughout Ireland. Its overall distribution has not changed since the 1962 Atlas, although it is now much better recorded.
Suboceanic Southern-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.