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. Western European Oceanic Boreo-temperate species. Wales, Ireland, Cornwall, Devon and Somerset.
Quite frequent as a garden escape, but considered to be native only in the extreme east of Cornwall, in parts of the River Tamar valley.
Habitat & Ecology
Moist shaded situations, along tracks in woodland and river sides. Naturalised plants tend to occur in damp paved areas and wooded edges.
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.