An annual of roadside-banks, rock outcrops and scree, preferring calcareous soils and characteristic of limestone districts. It is widespread in artificial habitats, including mortared walls, churchyards, roadsides, waste ground and railway ballast; also as an escape from gardens. Generally lowland, but reaching 610 m at Melmerby High Scar (Cumberland).
G. lucidum can be invasive, and there has been an expansion of its range and a marked increase in the number of 10-km squares since the 1962 Atlas. It is often very difficult to separate alien and native occurrences, and all records are mapped as if they are native.
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
1986. Atlas of north European vascular plants north of the Tropic of Cancer. 3 vols.
1978. Vergleichende Chorologie der zentraleuropäischen Flora. Volume 2. 2 vols.
1985. Hardy Geraniums.