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Invasive species photo gallery

Hemp nettle, brittlestem hemp nettle (Galeopsis tetrahit)

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

Photo by Michael Shephard. Click for an enlarged version.

Photo by Michael Shephard

Photo by Rob Routledge. Click for an enlarged version.

Photo by Rob Routledge

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