Radiola linoides (Allseed)
A small annual of damp, bare, infertile, peaty or sandy ground in acid grasslands and heaths, by ponds, on tracks and in woodland rides. Near the coast it occurs in dune-slacks, sandy grassland, on machair, and in soil-filled rock cracks. Lowland.
R. linoides suffered a considerable decline before 1930, largely due to the loss of lowland heaths or a lack of grazing and disturbance on them. These losses have continued in England: it was lost from 95% of a sample of sites in Dorset between 1935 and 1992 and remaining populations are very small. Its distribution seems to be stable elsewhere. It is easily overlooked and may be under-recorded in some areas.
European Temperate element.
Light (Ellenberg): 8
Moisture (Ellenberg): 7
Reaction (Ellenberg): 4
Nitrogen (Ellenberg): 2
Salt Tolerance (Ellenberg): 1
January Mean Temperature (Celsius): 4.2
July Mean Temperature (Celsius): 14.7
Annual Precipitation (mm): 1061
Count of 10km squares in Great Britain: 548
Count of 10km squares in Ireland: 115
Count of 10km squares in the Channel Isles: 11
Atlas Change Index: -0.87
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
Dorset's disappearing heathland flora,
, London, (1996)
Atlas of north European vascular plants north of the Tropic of Cancer. 3 vols,
, Königstein, (1986)
Vergleichende Chorologie der zentraleuropäischen Flora. Volume 2. 2 vols,
, Jena, (1978)