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.

Ruppia cirrhosa - Spiral Tasselweed



Spiral Tasselweed, a plant of brackish ditches and pools, has not been seen since 1980 and has most likely now become extinct in Cornwall. The last records are from Swanpool (SW83A, 1951, R.W.David), Par beach (SX05R, 1966, A.Brewis) and the Amble Marshes (SW97X, 1963, D.S.Ranwell). It is a Nationally Scarce species.

Source:

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