A prostrate, evergreen perennial herb of heaths, moors and mountains. It is often frequent on base-rich micaceous soils, but also occurs on more acidic Calluna heath and Nardus grassland. Propagation is mostly vegetative, but spores can colonise new sites, particularly the disturbed soil of roadside embankments and quarries. Lowland to 840 m in Atholl (E. Perth).
Many lowland sites of L. clavatum were lost before 1930. Populations elsewhere are somewhat transient, with losses owing to overgrazing, heather burning, conversion to scrub and agricultural improvement being offset by the establishment of new populations.
Circumpolar Boreo-temperate element.
Light (Ellenberg): 7
Moisture (Ellenberg): 5
Reaction (Ellenberg): 1
Nitrogen (Ellenberg): 2
Salt Tolerance (Ellenberg): 0
January Mean Temperature (Celsius): 2.4
July Mean Temperature (Celsius): 13.3
Annual Precipitation (mm): 1368
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 of north European vascular plants north of the Tropic of Cancer. 3 vols,
, Königstein, (1986)
Jalas & Suominen (1972)
Ferns and their allies,
, The Island of Mull: a survey of its flora and environment, London, p.12.1-12.7, (1978)
The ferns of Britain and Ireland, edn 2,
, Cambridge, (1997)