Yellow Flag Iris (Iris pseudacorus)

Yellow flag iris is an invasive perennial plant. It can grow in uplands, but is most commonly found in wetlands. It has been taking over the shorelines of rivers and lakes in Wisconsin. This species can spread by seeds as well as rhizomes.

Check out the report from Lake Minnesuing (PDF below) to find out information on how to identify and treat this species.

Here is a link to information from the Wisconsin DNR: Yellow Flag Iris