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.
There are no images in this gallery.
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
Height (cm): 100
Perennation - primary
Life Form - primary
Clonality - primary
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
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.