Lamium confertum
Tracheophyta
›Magnoliopsida›Lamiaceae›Lamium›Lamium confertum
Ecology
An annual of cultivated and waste ground. Generally lowland, but formerly recorded as a casual at 320 m in Derbyshire.
Status
Archaeophyte
Trends
The map suggests a decline in the frequency of L. confertum in Scotland. Elsewhere, the decline apparent in the 1962 Atlas has continued; naturalised populations no longer exist in England, where it is now present only as a casual.
World Distribution
As an archaeophyte L. confertum has a European Boreal-montane distribution; it also occurs in Greenland.
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Broad Habitats
Arable and horticultural (includes orchards, excludes domestic gardens)
Light (Ellenberg): 7
Moisture (Ellenberg): 5
Reaction (Ellenberg): 7
Nitrogen (Ellenberg): 7
Salt Tolerance (Ellenberg): 0
January Mean Temperature (Celsius): 3.5
July Mean Temperature (Celsius): 13.5
Annual Precipitation (mm): 1097
Height (cm): 25
Perennation - primary
Annual
Life Form - primary
Therophyte (annual land plant)
Woodiness
Herbaceous
Clonality - primary
Little or no vegetative spread
Count of 10km squares in Great Britain: 397
Count of 10km squares in Ireland: 51
Count of 10km squares in the Channel Isles: 0
Atlas Change Index: -0.4
Weighted Changed Factor: -9
Weighted Change Factor Confidence (90%)
47
JNCC Designations
NHMSYS0000460079
Atlas text references
Atlas (248d)
.
1986. Atlas of north European vascular plants north of the Tropic of Cancer. 3 vols.