An annual or short-lived perennial herb, widely naturalised on old walls, waysides, pavement cracks, waste ground and rubbish tips. Populations can be long-lived, and the species reproduces readily from seed. Lowland.
A. majus has been cultivated here since Elizabethan times and is very popular in gardens. It was first recorded in the wild in 1762. Its distribution has increased significantly since the 1962 Atlas and this is probably due to a genuine spread as well as the better recording of aliens.
Native of the S.W. Europe and the W. Mediterranean region.
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.