The Equisetum Species (Horsetails) of the British Isles

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L. Watson and M. J. Dallwitz

Contact information

L. Watson (taxonomy) —

M. J. Dallwitz (computing) —

Conditions of use

Applications of this package (including the duplication of text and images) are encouraged, without fee, provided copies are not made or distributed for direct commercial advantage and the source is acknowledged in publications of all kinds. We would appreciate being informed of such applications.

The JPEG illustrations provided here were designed for convenience of distribution and screen display, and are less sharp than the high resolution TIFF images from which they were generated. The latter have been retained, and could be made available for worthwhile applications.


We would appreciate constructive comments on this data set, and will try to correct errors as they are pointed out. In particular, we would be interested to hear from suitably knowledgeable persons interested in collaborating as joint authors in its proper development, especially with a view to extending the coverage to world level.