Research and Publications
The Vascular Plant Red Data List For Great Britain. Species Status No. 7. Joint Nature Conservation Committee, Peterborough.
(2005) Audit Of Non-Native Species In England. English Nature, Peterborough.
(2005) (2017)
GB Non-native Species Information Portal: documenting the arrival of non-native species in Britain. Biological Invasions, 16, 2495-2505.
(2014) (2004)
A Vascular Plant Red List For England. Botanical Society of Britain and Ireland, Bristol.
(2014) Scarce Plants In Britain. Joint Nature Conservation Committee, Peterborough.
(1994) New Atlas Of The British & Irish Flora. Oxford University Press, Oxford.
(2002) Hybrid Flora Of The British Isles. Botanical Society of Britain and Ireland, Bristol.
(2015) The Flora Of Rum: An Atlantic Island Reserve. Pearman, Truro.
(2008)