An annual of disturbed, nutrient-rich arable land and waste ground. It is a characteristic weed of humus-rich cultivated soils in the Fens. Lowland.
C. hybridum is known from archaeological evidence to have been present in Britain since Roman times. There has been no change in distribution since the 1962 Atlas.
As an archaeophyte C. hybridum has a Circumpolar Temperate distribution.
Light (Ellenberg): 7
Moisture (Ellenberg): 4
Reaction (Ellenberg): 7
Nitrogen (Ellenberg): 7
Salt Tolerance (Ellenberg): 0
January Mean Temperature (Celsius): 3.7
July Mean Temperature (Celsius): 16.2
Annual Precipitation (mm): 695
Count of 10km squares in Great Britain: 285
Count of 10km squares in Ireland: 0
Count of 10km squares in the Channel Isles: 1
Atlas Change Index: -0.32
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
1986. Atlas of north European vascular plants north of the Tropic of Cancer. 3 vols.
Jalas & Suominen (1980)
1965. Vergleichende Chorologie der zentraleuropäischen Flora. Volume 1. 2 vols.