Intelligence is not a term commonly used when plants are discussed. However, …

• Abstract
• Introduction
• Some important consequences of a definition of plant intelligence
• The basis of intelligent behaviour
• Communication to construct intelligent networks
• Plant memory and information retrieval
• Increasing the variety of response
• Box 1
• The intelligent response. Phenotypic plasticity as foresight
• Box 2
• Indication of intelligent choice, intention and behaviour
• Conclusion
• Acknowledgements
• Literature cited

I would like to acknowledge the critical refereeing of the manuscript and positive suggestions by Professor J. A. Raven and Dr R. D. Firn. Their support in no way implies acceptance of the ideas contained within. I would also like to thank the Biotechnology and Biological Sciences Research Council of the UK (BBSRC) for financial support throughout the period in which this manuscript was written.