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.

Physospermum cornubiense - Cornish Bladderseed

Apart from one outlying site in Buckinghamshire, Cornish Bladderseed, a Red Data Book species, is now restricted to East Cornwall, having disappeared from Devon. It seems to be declining in Cornwall, and where populations used to number thousands there are often now less than a hundred. However, a new site was discovered in 1995 at Rosenannon Downs (SW96N, I.J. Bennallick) where it appeared in numbers after a gorse fire. This would seem to imply that management would be beneficial.

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.