Also native to Japan, Japanese Knotweed was purposely introduced as an ornamental species. Japanese Knotweed forms extremely dense monocultures, spreads rapidly by roots, plant fragments and rhizomes and has substantial negative impacts on native ecosystems as it releases toxic chemicals into the soil. The plant has also been known to erode stream banks, crack drain pipes and destroy foundations as its roots spread. This plant is illegal to possess or introduce into Michigan due to its harmful impacts.
Posted February 28, 2015 at 12:59 PM