Giant knotweed, a terrestrial herbaceous plant in the Polygonaceae family, invades along waterways, roads, forest openings, and disturbed sites where dumped. Key characteristics of this invasive ...

Japanese knotweed, a terrestrial herbaceous plant that is in the Polygonaceae family, invades along rivers, streams, roads, and in disturbed areas or where dumped. It prefers full sun and rich soils ...