Mycelis muralis

Tracheophyta MagnoliopsidaAsteraceaeMycelisMycelis muralis


A winter-green perennial herb of shaded walls, rock outcrops and hedge banks, and in woodland, wood margins and scrub, especially on chalk and limestone but also on acidic rocks in some areas. In the Burren (Co. Clare) it occurs on open limestone pavement. 0-500 m (Alston Moor, Cumberland).



World Distribution

European Temperate element.

Broad Habitats

Light (Ellenberg): 4

Moisture (Ellenberg): 5

Reaction (Ellenberg): 7

Nitrogen (Ellenberg): 5


Salt Tolerance (Ellenberg): 0

January Mean Temperature (Celsius): 3.3

July Mean Temperature (Celsius): 15.2

Annual Precipitation (mm): 944

Life form information

Height (cm): 100

Perennation - primary


Life Form - primary




Clonality - primary

Little or no vegetative spread

Distribution information

Count of 10km squares in Great Britain: 1302

Count of 10km squares in Ireland: 0

Count of 10km squares in the Channel Isles: 0

Atlas Change Index: 0.01

Weighted Changed Factor: -3

Weighted Change Factor Confidence (90%)


Distribution information

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 (297b)
Clabby G, Osborne BA
1999.  Biological Flora of the British Isles. No. 204. Mycelis muralis (L.) Dumort. (Lactuca muralis L.). Journal of Ecology. 87:156-172.
Grime JP, Hodgson JG, Hunt R
1988.  Comparative Plant Ecology.
Hultén E, Fries M
1986.  Atlas of north European vascular plants north of the Tropic of Cancer. 3 vols.
Meusel H, Jäger EJ
1992.  Vergleichende Chorologie der zentraleuropäischen Flora. Volume 3. 2 vols.
Webb DA, Scannell MJP
1983.  Flora of Connemara and the Burren.