BioInfo (UK)

Clapham, A.R., Tutin, T.G. & Warburg, E.F., 1962

Flora of the British Isles

With over 1,000 thin pages of small type, "CTW" was, for thirty years, the standard flora for the higher plant botanist in Britain.

The keys work well and the descriptions are sufficently detailed to enable confident identification.

The species entries are a mine of information, giving flowering (and often fruiting) period (noticeably inaccurate in these days of climate change), chromosome counts (showing, for example, that Lady's Smock - Cardamine pratensis - is actually a neglected complex of microspecies), pollenators (several Helleborines - Epipactis - are wasp-pollenated) status, no of vice counties, distribution in Britain and abroad.

Publisher Cambridge University Press (CUP)
Pages 1269
Edition Second Edition
Coverage All native species and hybrids known at the time, plus a good selection of the commoner aliens and garden escapes.
Illustrations A few line drawings in the text.
Identify In the Hand (also useful to examine with x8 or x10 hand lens).

Malcolm Storey

Taxonomic Scope

TRACHEOPHYTA (vascular plants) Identification Superseded
PTERIDOPHYTA (ferns and allies) Identification Superseded


illustrations Clapham, A.R., Tutin, T.G. & Warburg, E.F. (Roles, S.J. del), 1957
the shortened, more portable, "Excursion Flora" Clapham, A.R., Tutin, T.G. & Warburg, E.F., 1968
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Unless otherwise expressly stated, all original material on the BioInfo website by Malcolm Storey is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 2.0 UK: England & Wales Licence.