Papaver dubium subsp. dubium
This annual is mainly an associate of arable crops, though also found on other disturbed land, particularly rubbish tips, and is most frequent on light soils. It can be found in both spring- and autumn-sown crops, although most seedlings emerge in the autumn. The seed can be very long-lived. Lowland.
This taxon was not mapped separately in the 1962 Atlas. It has declined locally as a result of agricultural intensification. Some recorders have failed to distinguish the subspecies of P. dubium and subsp. dubium is therefore under-recorded.
European Southern-temperate element.
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.