A dioecious herb of wet, base-poor peats on moorland and blanket mire, spreading by extensively creeping rhizomes and by seed. Usually above 600 m and reaches at least 1160 m (Beinn a` Bhuird, S. Aberdeen, and Carn Eige, E. Ross), but descends to c. 90 m in Denbighshire.
The overall distribution of R. chamaemorus since the 1962 Atlas is stable, although there have been losses on the edges of its range, particularly in W. Scotland. These losses may be due to drainage, afforestation and moor-burning.
Circumpolar Boreal-montane element.
Light (Ellenberg): 9
Moisture (Ellenberg): 7
Reaction (Ellenberg): 1
Nitrogen (Ellenberg): 1
Salt Tolerance (Ellenberg): 0
January Mean Temperature (Celsius): 1.1
July Mean Temperature (Celsius): 12.2
Annual Precipitation (mm): 1594
Height (cm): 20
Perennation - primary
Life Form - primary
Clonality - primary
Count of 10km squares in Great Britain: 394
Count of 10km squares in Ireland: 1
Count of 10km squares in the Channel Isles: 0
Atlas Change Index: -0.47
Weighted Changed Factor: -6
Weighted Change Factor Confidence (90%)
Atlas text references
1988. The Irish Red Data Book. 1. Vascular Plants.
1988. Brambles of the British Isles.
1986. Atlas of north European vascular plants north of the Tropic of Cancer. 3 vols.
1965. Vergleichende Chorologie der zentraleuropäischen Flora. Volume 1. 2 vols.
1971. Biological Flora of the British Isles. No. 121. Rubus chamaemorus L. Journal of Ecology. 59:293-306.