In most educational resources, both Greek and international, the structure and function of plant organisms are described separately.

The Morphology and Anatomy that describe the structure, as well as the Physiology that describes the functions of plants, have gradually evolved as independent scientific fields, and for this reason, the individual subjects they deal with are referenced separately.

This book has made an effort to present both the structure and function of higher plants as a unified whole.

We hope this attempt will be successful, providing a useful and easily understandable educational resource.