English Ivy in Laurel Park in Summer -

©John McGregor

English Ivy - Forest and Kim Starr, Starr Environmental, Bugwood.org

English Ivy - James H. Miller, USDA Forest Service, Bugwood.org

Oriental Bittersweet New Foliage in Spring - Chris Evans, University of Illinois, Bugwood.org

Oriental Bittersweet Mature Foliage - James H. Miller, USDA Forest Service, Bugwood.org

Oriental Bittersweet Fall Berries - ©John McGregor

Kudzu Leaf - James H. Miller, USDA Forest Service, Bugwood.org

Kudzu Flower Fall - ©John McGregor

Kudzu Infestation - Jerry Asher, USDI Bureau of Land Management, Bugwood.o

Japanese Knotweed New Emergence Spring - Leslie J. Mehrhoff, University of Connecticut Bugwood.or

Japanese Knotweed Flower Summer - ©John McGregor

Japanese Knotweed - ©John McGregor

Autumn Olive Trunk-James H. Miller, USDA Forest Service Bugwood.org.

Autumn Olive Fall Berries - ©John McGregor

Autumn Olive Fall - ©John McGregor

Miscanthus in Summer - ©John McGregor

Miscanthus in Winter - ©John McGregor

Miscanthus Rhizomes - Leslie J. Mehrhoff, University of Connecticut Bugwood.org

Japanese Stiltgrass - David J. Moorhead, University of Georgia, Bugwood.org

Japanese Stiltgrass - Chuck Bargeron, University of Georgia, Bugwood.org

Japanese Stiltgrass - Chris Evans, University of Illinois, Bugwood.org