An insectivorous rosette-forming perennial herb of damp acid heath and moorland, bogs and upland flushes, growing among Sphagnum or on bare acid peat. It can be an abundant colonist of ditch sides cut through wet, peaty ground. 0-670 m (Snowdonia, Caerns.) and reportedly to 700 m in the Scottish Highlands.
The overall distribution of D. rotundifolia has not changed since the 1962 Atlas. A decline in S.E. England was already apparent then and has continued in lowland areas because of habitat destruction.
Circumpolar Boreo-temperate element.
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Light (Ellenberg): 8
Moisture (Ellenberg): 9
Reaction (Ellenberg): 2
Nitrogen (Ellenberg): 1
Salt Tolerance (Ellenberg): 0
January Mean Temperature (Celsius): 3.3
July Mean Temperature (Celsius): 13.9
Annual Precipitation (mm): 1269
Height (cm): 5
Perennation - primary
Life Form - primary
Clonality - primary
Count of 10km squares in Great Britain: 1736
Count of 10km squares in Ireland: 687
Count of 10km squares in the Channel Isles: 2
Atlas Change Index: -0.56
Weighted Changed Factor: -9
Weighted Change Factor Confidence (90%)
Atlas text references
1990. Biological Flora of the British Isles. No. 167. Drosera genus L. (p. 233); Drosera rotundifolia L. (pp. 233-252); Drosera anglica Huds. (pp. 252-257); Drosera intermedia Drev. & Hayne (pp. 257-267). Journal of Ecology. 78:233-267.
1986. Atlas of north European vascular plants north of the Tropic of Cancer. 3 vols.
Jalas & Suominen (1999)
1965. Vergleichende Chorologie der zentraleuropäischen Flora. Volume 1. 2 vols.