The descriptions of the plants have been compiled from the following sources which are abbreviated in the descriptions, and from specific articles, the sources of which are quoted in full in the descriptions .
| A.M. | Mitchell, A. 1974, A field guide to the trees of Britain and Northern Europe, pp 415, Collins, London |
|---|---|
| B.H. | Bentham, G., and Hooker, J.D, 1912: Handbook of the British Flora, pp 584, Lovell Reeve and Co, London |
| C.T.W | Clapham,A.R., Tutin,T.G., Warburg, E.F., 1962: Flora of the British Isles , pp 1269 , Cambridge U.P. |
| C.S. | Stace, C.1991: New Flora of the British Isles, pp. 1226, Cambridge U.P. |
| C.E.H. | Hubbard, C.E., 1992: Grasses, pp 476, Penguin. |
| D.R. | Dudman, A.A., and Richards, A.J.: 1997: Dandelions of Great Britain and Ireland. BSBI Handbook no 9 |
| eFlora | http://www.efloras.org |
| J.S.F.P. | Jermy,A.C.,Simpson,D.D., Goley, M.J.Y., and Porter M.S. ,2007: Sedges of the British Isles, pp 197. B.S.B.I Handbook |
| T.G.T | T.G.Tutin,1980: Umbellifers of the British Isles, pp 197. B.S.B.I Handbook |
| P.C. | Preston, C.D., and Croft, J.M.: 1997: Aquatic Plants in Britain and Ireland. pp 365. Harley Books |