A perennial herb of various wet habitats, usually neutral to base-rich rather than very acidic, including Alnus carr, the edges of rivers, streams, canals, lakes and ponds, ditches and winter-wet meadows and pastures. A small form, var. radicans, is found in mountain flushes and lake shores in N. & W. Britain and Ireland. 0-1100 m (Braeriach and Lochnagar, S. Aberdeen).
There is little evidence of any change in the 10-km square distribution of this species.
Circumpolar Wide-boreal element.
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
1988. Comparative Plant Ecology.
1986. Atlas of north European vascular plants north of the Tropic of Cancer. 3 vols.
Jalas & Suominen (1989)
1965. Vergleichende Chorologie der zentraleuropäischen Flora. Volume 1. 2 vols.
1973. A revisin of Caltha (Ranunculaceae). Blumea. 21:119-150.