Giant Hogweed (Heracleum mantegazzianum)
Knotweeds (Reynoutria japonica, R. sachalinensis, and R. bohemica)
Tree of Heaven (Ailanthus altissima)
Black Locust (Robinia pseudoacacia)
Himalayan balsam (Impatiens glandulifera)
Jerusalem artichoke (Helianthus tuberosus)
Canada goldenrod (Solidago canadensis) and giant goldenrod (S. gigantea).