This perennial grows mainly on dry, calcareous to slightly acid, sandy soils, occurring in pastures, on dry roadsides, wayside banks, the margins of arable fields, sandy or gravelly waste ground, sand dunes and sand-pits. 0-300 m (Hounam Law, Roxburghs.).
C. arvense has declined, particularly at the edges of its range. The reasons for this are unclear.
Circumpolar Boreo-temperate element; widely naturalised outside its native range.
Light (Ellenberg): 8
Moisture (Ellenberg): 4
Reaction (Ellenberg): 5
Nitrogen (Ellenberg): 3
Salt Tolerance (Ellenberg): 0
January Mean Temperature (Celsius): 3.3
July Mean Temperature (Celsius): 15.3
Annual Precipitation (mm): 773
Height (cm): 30
Perennation - primary
Life Form - primary
Clonality - primary
Count of 10km squares in Great Britain: 814
Count of 10km squares in Ireland: 39
Count of 10km squares in the Channel Isles: 0
Atlas Change Index: -1.05
Weighted Changed Factor: -30
Weighted Change Factor Confidence (90%)
Atlas text references
1986. Atlas of north European vascular plants north of the Tropic of Cancer. 3 vols.
Jalas & Suominen (1983)
1965. Vergleichende Chorologie der zentraleuropäischen Flora. Volume 1. 2 vols.