Japanese Knotweed Reynoutria japonica is one of the world's most high-profile invasive plants. This authoritative and accessible book traces the species' global history, distribution and reproductive biology. The authors deliver a comprehensive overview of ecological and economic threats posed by knotweed and how these have influenced government policy and legislative responses. New management approaches for effective ecosystem remediation are evaluated, making this an essential resource for researchers, policymakers, land managers and botanists. Written by three of the world's leading experts on the subject, the book offers a compelling exploration of the spread and implications of Japanese Knotweed. It also presents a balanced and comprehensive overview of academic research into the threats posed by invasive knotweed species more broadly. Particularly valuable is its in-depth examination of the often-contentious issue of Japanese Knotweed management and control, providing the latest evidence-based insights into the most effective strategies. This book also contains detailed guidance on the identification of above- and below-ground invasive knotweed growth, supplemented by a seasonal guide for positive identification of plants commonly mistaken for Japanese Knotweed. From identification and genetics to legal implications and sustainable management, this unique handbook covers all aspects of this key global invasive plant in a scholarly yet accessible style.