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