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.

Potamogeton perfoliatus - Perfoliate Pondweed

This is one of the rarest pondweeds in Cornwall and has only been recorded from the Great Pool on Tresco (SV81X), one of the reservoirs near Mabe (SW73R, 1902, N.Gill), in the Tamar Lakes (SS21V) and most recently in Carminowe Creek, Loe Pool (SW62M, 1983, R.J.Murphy).


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