A perennial herb with a woody base, found as a naturalised garden escape on roadsides, railway banks, old walls and waste ground. Lowland.
This species was being cultivated in British gardens by 1596 and is grown for its mildly acidic leaves. It was recorded from the wild by c. 1800 (Glams.), and was apparently long naturalised at Craigmillar Castle, Edinburgh (Midlothian) and Aberdour Old Castle (Fife).
Native of C. & S. Europe, N. Africa and W. Asia.
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
Jalas & Suominen (1979)
1981. Docks and knotweeds of the British Isles. Botanical Society of the British Isles Handbook no. 3.
1965. Vergleichende Chorologie der zentraleuropäischen Flora. Volume 1. 2 vols.