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.

Apium inundatum - Lesser Marshwort

Lesser Marshwort is a plant of moorland pools, such as on the Lizard, Carnmenellis and West Penwith, and the margins of reservoirs such as Stithians (SW73C, 1990, K.L.Spurgin), Argal (SW73K, 1992, C.N.French) and Drift (SW42J, 1990, W.G.Last). It is largely restricted to West Cornwall, is rare on the Isles of Scilly and, given the intensity of recording on the mid-Cornwall moors in recent years, it seems to have disappeared from the many pools in that area. Recent records include Porthgwarra (SW32R, 1991, C.N.French), Predannack Airfield (SW61X, 1987, S.M.Hocking), Hayle Kimbro Pool (SW61Y, 1990, R.J.Murphy), Crowan Reservoir (SW63S, 1992, R.J.Murphy), near Zelah Hill (SW85G, 1998, I.J.Bennallick) and Kiberick Cove (SW93I, 1991, R.E.Lees).


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