Cornish Biodiversity Network  -  Supporting Wildlife Recording

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Flora of Cornwall (1999)

The descriptive text, below the map, is from the Flora of Cornwall (1999), which was a Tetrad Atlas (the maps had 2km square dots or Tetrads). The map on this web page depicts the plant's distribution at the 1km square scale and shows the records made pre-2000 which were used in the 1999 Flora and those made since.

Lactuca virosa - Great Lettuce

This rare casual has not been seen since 1974 and may no longer be a member of the Cornish Flora. Many of the records came from around the docks, such as Par (SX05R, 1909, RV.Tellam) and Newham (SX84G, 1902, C.Snell), suggesting it was introduced with shipping.

Click here to see Aphotoflora images by David Fenwick


French, C.N., Murphy, R.J. & Atkinson, M. 1999. Flora of Cornwall. Wheal Seton Press, Camborne.