A perennial herb found in all kinds of grassland habitats, ranging from lawns to montane communities irrigated by melting snow-beds; also found on coastal sand dunes and stabilised shingle, waysides and waste ground. It tolerates drought, and grows in most soils except the most nutrient-poor, permanently waterlogged or strongly acidic. 0-1210 m (Ben Lawers, Mid Perth).
There has been no significant change in the distribution of A. millefolium since the 1962 Atlas.
Eurasian Boreo-temperate element, but naturalised in N. America so distribution is now Circumpolar Boreo-temperate.
Light (Ellenberg): 7
Moisture (Ellenberg): 5
Reaction (Ellenberg): 6
Nitrogen (Ellenberg): 4
Salt Tolerance (Ellenberg): 1
January Mean Temperature (Celsius): 3.5
July Mean Temperature (Celsius): 14.5
Annual Precipitation (mm): 1103
Height (cm): 45
Perennation - primary
Life Form - primary
Comment on Life Form
Clonality - primary
Count of 10km squares in Great Britain: 2774
Count of 10km squares in Ireland: 968
Count of 10km squares in the Channel Isles: 14
Atlas Change Index: 0.29
Weighted Changed Factor: -59
Weighted Change Factor Confidence (90%)
Atlas text references
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.
1982. The biology of Canadian weeds. 52. Achillea millefolium L. s.l. Canadian Journal of Plant Science. 62:163-182.