Prize-winners to pariahs - a history of Japanese knotweed s.l. (Polygonaceae) in the British Isles.

Abstract

93 The early history of the discovery and introduction to the British Isles of the alien invasive perennials belonging to Fallopia section Reynoutria (hereafter referred to as Japanese Knotweed s.l.) are described from a study of documentary evidence and herbarium material. The role of the various agencies involved in the dispersal of these plants is discussed, as is the influence that contemporaneous gardening trends had on the ornamental use of Japanese Knotweed s. I.