Japanese knotweed leaves can be as many as 6 inches extensive and have a squared leaf foundation. Giant or hybrid knotweed leaves will increase much larger, as many as 1 foot very long, and also have a rounded leaf foundation. ), an herbaceous perennial member with the buckwheat loved ones, https://allbookmarking.com/story20464396/the-best-side-of-japanese-knotweed-specialist-control