A biennial or perennial herb, widespread in grassland and especially abundant in neglected, rabbit-infested or overgrazed pastures; it also grows on sand dunes, in scrub, open woods and along woodland rides, waste ground, road verges and waysides, and on rocks, screes and walls. 0-670 m (Atholl, E. Perth, and on Mangerton, S. Kerry).
The distribution of S. jacobaea is unchanged from the map in the 1962 Atlas. It is a notifiable weed, subject to statutory control, but this has clearly had little, if any, effect on its distribution or abundance.
Eurosiberian Temperate element.
Height (cm): 125
Perennation - primary
Perennation - secondary
Life Form - primary
Comment on Life Form
Clonality - primary
Clonality - secondary
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
1991. The biology of Canadian weeds. 96. Senecio jacobaea L. Canadian Journal of Plant Science. 71:127-140.
1988. Comparative Plant Ecology.
1957. Biological Flora of the British Isles. No. 62. Senecio jacobaea L. Journal of Ecology. 45:617-637.
1986. Atlas of north European vascular plants north of the Tropic of Cancer. 3 vols.
1992. Vergleichende Chorologie der zentraleuropäischen Flora. Volume 3. 2 vols.
1987. The ecology of ragwort (Senecio jacobaea L.) - a review. New Zealand. Journal of Ecology. 10:67-76.