Ranunculus acris
Ecology
A perennial herb of damp meadows and pastures on a wide variety of soils, only avoiding very dry or acid conditions. It is a characteristic plant of unimproved hay and water-meadow communities, and now of relict herb-rich fragments on damp road verges; it also grows on dune grassland, in montane flushes and in tall-herb communities on rock ledges. It is unpalatable to grazing animals, but easily controlled in intensively managed pastures. 0-1220 m (Cairntoul, S. Aberdeen).
Status
Trends
The distribution of R. acris is stable.
World Distribution
Eurasian Wide-boreal element, but naturalised in N. America so distribution is now Circumpolar Wide-boreal.
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Broad Habitats
Light (Ellenberg): 7
Moisture (Ellenberg): 6
Reaction (Ellenberg): 6
Nitrogen (Ellenberg): 4
Salt Tolerance (Ellenberg): 0
January Mean Temperature (Celsius): 3.5
July Mean Temperature (Celsius): 14.4
Annual Precipitation (mm): 1106
Height (cm): 75
Perennation - primary
Life Form - primary
Woodiness
Clonality - primary
Count of 10km squares in Great Britain: 2780
Count of 10km squares in Ireland: 968
Count of 10km squares in the Channel Isles: 13
Atlas Change Index: 0.3
Weighted Changed Factor: -52
Weighted Change Factor Confidence (90%)
JNCC Designations
Atlas text references
Atlas (20a)
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1988. Comparative Plant Ecology.
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1957. Biological Flora of the British Isles. No. 61. Ranunculus acris L. (pp. 289-314), Ranunculus repens L. (pp. 314-325), Ranunculus bulbosus L. (pp. 325-342). Journal of Ecology. 45:289-342.
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1986. Atlas of north European vascular plants north of the Tropic of Cancer. 3 vols.
Jalas & Suominen (1989)
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1965. Vergleichende Chorologie der zentraleuropäischen Flora. Volume 1. 2 vols.