A monocarpic perennial herb of streamsides and river banks, roadside verges, tracks and waysides, field-borders, waste land and other disturbed places. Lowland.
A. lappa was probably over-recorded in the 1962 Atlas because `Arctium lappa` was used as the name of the Arctium aggregate at that time. The distribution seems stable. It may only be a recent colonist outside its core area in England, and may be increasing.
As an archaeophyte A. lappa has a Eurosiberian Temperate distribution, but it is widely naturalised so that its distribution is now Circumpolar Temperate.
Light (Ellenberg): 9
Moisture (Ellenberg): 5
Reaction (Ellenberg): 7
Nitrogen (Ellenberg): 9
Salt Tolerance (Ellenberg): 0
January Mean Temperature (Celsius): 3.8
July Mean Temperature (Celsius): 16
Annual Precipitation (mm): 769
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
1980. The biology of Canadian weeds. 38. Arctium minus (Hill) Bernh. and A. lappa L. Canadian Journal of Plant Science. 60:621-634.
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.
1960. Report on the survey of Arctium L. agg. in Britain, 1959. Proceedings of the Botanical Society of the British Isles. 4:33-37.