Lamium purpureum
Ecology
This annual is a frequent colonist of fertile and disturbed soils, and is found in cultivated and waste ground, gardens, hedgerows, on roadside verges, along railways, around rock outcrops and in rough grassland. 0-610 m (Grasshill, Co. Durham).
Status
Trends
As in the 1962 Atlas, L. purpureum is present in nearly all lowland areas but the map suggests a decline in Scotland, possibly due to the abandonment of marginal arable land.
World Distribution
As an archaeophyte L. purpureum has a European Temperate distribution; it is widely naturalised outside this range.
Broad Habitats
Light (Ellenberg): 6
Moisture (Ellenberg): 5
Reaction (Ellenberg): 7
Nitrogen (Ellenberg): 7
Salt Tolerance (Ellenberg): 0
January Mean Temperature (Celsius): 3.6
July Mean Temperature (Celsius): 14.7
Annual Precipitation (mm): 1027
Height (cm): 30
Perennation - primary
Life Form - primary
Woodiness
Clonality - primary
Count of 10km squares in Great Britain: 2461
Count of 10km squares in Ireland: 738
Count of 10km squares in the Channel Isles: 14
Atlas Change Index: -1.09
Weighted Changed Factor: -2
Weighted Change Factor Confidence (90%)
JNCC Designations
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
Atlas (249b)
.
1988. Comparative Plant Ecology.
.
1986. Atlas of north European vascular plants north of the Tropic of Cancer. 3 vols.