A small, prostrate annual or short-lived perennial herb grown in garden rockeries, escaping into habitats such as disturbed ground, pathsides, the base of walls, and crevices in paved areas, in shaded or open situations. Most populations are casual, but in some sites it is known to have persisted for many years. Lowland.
As O. exilis is often mistaken for small forms of O. corniculata, and it was not mapped in the 1962 Atlas, it is difficult to assess changes in its distribution. It was first recorded in the wild in 1926, and may be under-recorded.
Native of Australasia.
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.