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
Native. Oceanic Southern-temperate species. Widespread in the Channel Islands and coastal areas of western Britain and Ireland, west of Hampshire to southern Scotland.
Still a frequent plant in the Isles of Scilly, on all the inhabited and larger uninhabited
islands. Around the Cornish coast it occurs along the north coast between St. Ives (SW54) and Wadebridge (SW97), north and south of Bude (SS21) and scattered along the south coast.
Habitat & Ecology
Along the cliffs on rocky slopes, semi-fixed dunes, coastal walls and hedges, and along the coastal footpath. It also grows on shingle and occasionally on storm beaches. In Scilly it is a plant of sand and shingle beaches, as well as on dune-grassland and sandy places especially on the uninhabited islands such as Te\'e4n (SV91), Samson (SV81) and the Eastern Isles (SV91).
Many sites are SSSI.
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.