Invasive Plants in Northern Virginia: Japanese Knotweed
Invasive Plants in Northern Virginia: Japanese Knotwood
Japanese knotweed is a particularly aggressive buckwheat family member found throughout the Mid-Atlantic region. The plant was introduced to the United States from Japan in the early 1800s as an ornamental and erosion-control plant and has been considered as invasive, especially in riparian areas, since it escaped cultivation in the 1930s.