The stems are if not clean, brilliant green, and sometimes coated with darker places or streaks. Parts from the stem bearing leaves surface to zigzag from node to node and sort dense thickets. The plant forms dense thickets that exclude native vegetation, leading to reduced biodiversity and improved soil erosion https://japanesecontrol19742.59bloggers.com/38277742/not-known-factual-statements-about-japanese-knotweed-control