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; an annual, to short-lived perennial, Mediterranean-Atlantic plant. It is at the edge of its range in the British Isles, limited by climate, with a scatter of records across southern England, plus populations in the Channel Islands, Isles of Scilly and West Cornwall.
Frequent on the Isles of Scilly, on all the inhabited islands but especially St. Mary' s (SV91) and St. Agnes (SV80). Sporadic in Cornwall: it has been known along the foreshore between Penzance (SW43) and Long Rock (SW53) since 1877, lasting until 1993, when a man-made barrier, constructed as a protection against storms and high seas, buried the population. Plants have since re-appeared (2005) at Chyandour (SW43), along a length of pavement within a mile of the original site.
Habitat & Ecology
Waste places, roadsides, cultivated fields, foreshores. It is part of the weed flora of the Isles of Scilly.
A marginal species, therefore easily lost as a result of changes in bulb-field and shore-line management. Verge clearance at the Chyandour site, in 2006, destroyed some plants.
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.