An annual of disturbed cultivated ground, including gardens, especially on light, nutrient-rich soils. It has also been recorded on bare peat, on disturbed soil in newly coppiced woodland and in dried up ponds. Lowland.
There has been no change in overall range since the 1962 Atlas, but there are many more records.
Eurosiberian Temperate element; widely naturalised outside its native range.
Light (Ellenberg): 7
Moisture (Ellenberg): 6
Reaction (Ellenberg): 7
Nitrogen (Ellenberg): 8
Salt Tolerance (Ellenberg): 0
January Mean Temperature (Celsius): 3.9
July Mean Temperature (Celsius): 16
Annual Precipitation (mm): 794
PLANTATT - Attributes of British and Irish plants. (.zip 1455KB) This dataset was compiled and published in 2004, and last updated in November 2008. Download includes an Excel spreadsheet of the attributes, and a PDF explaining the background and nomenclature. Note that the PDF version is the booklet as published, whereas the Excel spreadsheet incorporates subsequent corrections. A hardcopy can be purchased from the Centre for Ecology and Hydrology.
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.