Three Carlton County lakes are on the Minnesota Department of Natural Resources' latest Infested Waters List, which includes lakes and rivers containing certain aquatic invasive species.
Chub, Bear and Little Hanging Horn lakes contain infestations of Eurasian watermilfoil, according to a news release from the DNR. Chub was first confirmed as infested in 2009; Bear, 2015; and Little Hanging Horn, 2016.
Eurasian watermilfoil, a rooted, submerged aquatic plant, has green, feather-like leaves and white to reddish stems. It creates canopy-like structures up to 20 feet tall, but typically only grows 3-9 feet tall.
Eurasian watermilfoil has two native lookalikes: northern watermilfoil and coontail.
The plant is native to Europe and Asia, and was discovered in the eastern U.S. in the early 1900s. In Minnesota, it was first recorded in Lake Minnetonka in Hennepin County in 1987.
About 7% of Minnesota's more than 11,000 lakes are on the DNR's Infested Waters List, according to the DNR.