An annual of beaches, saltmarshes and other open, often wet, saline habitats near the sea; also inland in disturbed areas on moist, fertile, neutral soils, such as the trampled margins of ditches and ponds, on cultivated land, tips and waste ground. It also grows in inland saltmarshes and along salt-treated roadsides. Generally lowland, but reaching 415 m at Carter Bar (Roxburghs.).
Since the 1962 Atlas, A. prostrata has been better recorded on the coasts of N. and W. Britain and Ireland, but its increased frequency inland may partly represent its spread along roads.
Eurosiberian Wide-temperate element; widely naturalised outside its native range.
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Light (Ellenberg): 8
Moisture (Ellenberg): 7
Reaction (Ellenberg): 7
Nitrogen (Ellenberg): 7
Salt Tolerance (Ellenberg): 2
January Mean Temperature (Celsius): 3.9
July Mean Temperature (Celsius): 15.1
Annual Precipitation (mm): 955
Height (cm): 100
Perennation - primary
Life Form - primary
Clonality - primary
Count of 10km squares in Great Britain: 1847
Count of 10km squares in Ireland: 349
Count of 10km squares in the Channel Isles: 5
Atlas Change Index: 1.1
Weighted Changed Factor: 53
Weighted Change Factor Confidence (90%)
Atlas text references
1987. The biology of Canadian weeds. 81. Atriplex patula L., A. prostrata Boucher ex DC, and A. rosea L. Canadian Journal of Plant Science. 67:1069-1082.
1988. Comparative Plant Ecology.
1986. Atlas of north European vascular plants north of the Tropic of Cancer. 3 vols.
Jalas & Suominen (1980)