A scrambling annual or short-lived perennial herb which is often a pernicious weed of cultivated land, disturbed areas and paths. It is self-compatible and the seeds are explosively ejected up to two metres from the capsules. Its brittle stems readily root at the nodes. Lowland.
O. corniculata was cultivated in Britain by 1656 and was first recorded in the wild in 1770, but the main spread has been in the 20th century and this has continued since the 1962 Atlas. It has consolidated its range in the south, and is now more widely recorded in N. Britain and Ireland.
Native range unknown; now found in warm temperate and tropical regions throughout the world.
Height (cm): 15
Perennation - primary
Perennation - secondary
Life Form - primary
Life Form - secondary
Comment on Life Form
Clonality - primary
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
Biology of Canadian weeds. 71. Oxalis stricta L., O. corniculata L., O. dillenii Jacq. ssp. dillenii and O. dillenii Jacq. ssp. filipes (Small) Eiten,
, Canadian Journal of Plant Science, Volume 65, p.691-709, (1985)
Atlas of north European vascular plants north of the Tropic of Cancer. 3 vols,
, Königstein, (1986)
Vergleichende Chorologie der zentraleuropäischen Flora. Volume 2. 2 vols,
, Jena, (1978)
Plant crib 1998,
, London, (1998)
Oxalis in the British Isles,
, Watsonia, Volume 4, p.51-69, (1958)