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.
\sb100\sl-210\slmult0 Native; a perennial Oceanic Southern-temperate herb; restricted to the Atlantic coast from north-west France to north-west Portugal and into Britain. The remaining British population is on coastal slopes in Pembrokeshire.
00 Regional Distribution
It is extinct in Cornwall, the last record for Sandymouth, near Bude being just before 1981. Here it was destroyed by the construction of a car park. Also formerly known at Porthgwarra, in west Cornwall, it has not been seen here since 1967, despite repeated searching.
Habitat & Ecology
In Pembrokeshire it grows on the bevelled slopes of coastal cliff in maritime grassland. This is the kind of habitat in which it was formerly found at Porthgwarra.
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.