A comprehensive international review of approximately 8,000 species of weeds, this text is designed to show how the same weed species may be common to a number of different regions of the world. This concentration on the
world weed problem will help weed scientists, agricultural scientists, botanists, ecologists, and researchers to avoid a duplication of work, and to promote cooperation and control of the threat to future generations' food supplies. All taxonomy is updated, and scientific names are used throughout. The preface and key to the codings for countries and areas are given in 10 major languages.