An annual of open grassland and disturbed ground occurring in a wide range of habitats, including fen- and hay-meadows, pastures, moorland edges, marshes, dune-slacks, arable field margins, road verges, railway tracks, chalk- and gravel-pits, rocks and walls. Generally lowland, but reaching 610 m on Little Fell (Westmorland) and 845 m on Great Dun Fell (Westmorland).
M. discolor was mapped as `all records` in the 1962 Atlas. Analysis of the database reveals that the widespread decline in S. and E. England has taken place since 1950. It is, however, much more comprehensively recorded in the south and west.
European Temperate element.
Light (Ellenberg): 7
Moisture (Ellenberg): 5
Reaction (Ellenberg): 5
Nitrogen (Ellenberg): 3
Salt Tolerance (Ellenberg): 0
January Mean Temperature (Celsius): 3.5
July Mean Temperature (Celsius): 14.4
Annual Precipitation (mm): 1088
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.