The descriptive text, below the map, is from the Cornish Red Data Book (2009). The map on this web page depicts the organisms distribution and shows the records made pre-2000 and those made since.
Range & Status
Archaeophyte. European Southern-temperate species. Widespread throughout lowland parts of Britain and Ireland, but declining rapidly.
Widespread in Cornwall and on all the inhabited islands on the Isles of Scilly. It is not clear whether it is declining.
Habitat & Ecology
Arable fields and waste places, and occasionally seen on road verges. It is rarely seen in great abundance.
Herbicides and change of crops in arable land-use.
Most sites are unprotected.
I.J. Bennallick, S. Board, C.N. French, P.A. Gainey, C. Neil, R. Parslow, A. Spalding and P.E. Tompsett. eds. 2009. Red Data Book for Cornwall and the Isles of Scilly. 2nd Edition.Croceago Press.
The Cornish Red Data Book Project was led by the Cornwall and Isles of Scilly Federation for Biological Recorders (CISFBR). The full text and species accounts (minus the maps) are available on the CISFBR website.