A perennial herb of meadows, pastures, lawns, heathland, cliff-tops, sand dunes, roadsides, railway banks and waste ground, on slightly acidic, usually free-draining soils. It is very tolerant of drought, and is absent from sites subject to prolonged waterlogging. 0-530 m (S. of Garrigill, Cumberland), and to 610 m on Macgillycuddy`s Reeks (S. Kerry).
There has been no discernible change in the range of H. radicata since the 1962 Atlas. It was first recorded in Shetland in 1889.
European Southern-temperate element; widely naturalised outside its native range.
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Light (Ellenberg): 8
Moisture (Ellenberg): 4
Reaction (Ellenberg): 5
Nitrogen (Ellenberg): 3
Salt Tolerance (Ellenberg): 0
January Mean Temperature (Celsius): 3.5
July Mean Temperature (Celsius): 14.5
Annual Precipitation (mm): 1104
Height (cm): 60
Perennation - primary
Life Form - primary
Clonality - primary
Count of 10km squares in Great Britain: 2725
Count of 10km squares in Ireland: 977
Count of 10km squares in the Channel Isles: 14
Atlas Change Index: 0.61
Weighted Changed Factor: 14
Weighted Change Factor Confidence (90%)
Atlas text references
1981. The biology of Canadian weeds. 50. Hypochoeris radicata L. Canadian Journal of Plant Science. 61:365-381. .
1988. Comparative Plant Ecology. .
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 flowering plants and ferns of the Shetland Islands. .
1983. Biological Flora of the British Isles. No. 156. Hypochoeris radicata L. Journal of Ecology. 71:999-1022.