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Invasive species photo gallery

Japanese knotweed (Fallopia japonica or Polygonum cuspidatum)

Click on a photo for an enlarged version or return to all non-native or native invasive plant species.

Photo by S. Kelly Kearns. Click for an enlarged version.

Photo by S. Kelly Kearns

Photo by S. Kelly Kearns. Click for an enlarged version.

Photo by S. Kelly Kearns

Photo by S. Kelly Kearns. Click for an enlarged version.

Photo by S. Kelly Kearns

Photo by Elizabeth J. Czarapata. Click for an enlarged version.

Photo by Elizabeth J. Czarapata

Photo by Elizabeth J. Czarapata. Click for an enlarged version.

Photo by Elizabeth J. Czarapata

Photo by Elizabeth J. Czarapata. Click for an enlarged version.

Photo by Elizabeth J. Czarapata

Photo by Nisa Karimi. Click for an enlarged version.

Photo by Nisa Karimi

Photo by Nisa Karimi. Click for an enlarged version.

Photo by Nisa Karimi

Photo by Nisa Karimi. Click for an enlarged version.

Photo by Nisa Karimi

Photo by Nisa Karimi. Click for an enlarged version.

Photo by Nisa Karimi

Photo by Nisa Karimi. Click for an enlarged version.

Photo by Nisa Karimi

Visit Wisconsin Vascular Plants [exit DNR], a Web site presented by the Wisconsin Herbarium, to view photos and learn more about these plant species, as well as the rest of Wisconsin's Flora.

Last revised: Thursday, October 28, 2021