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Wetland “Fen” In NW Iowa Revives, Home To Some Of State’s Rarest Plant Life

John Pearson (DNR Photo)

Estherville, Iowa — Some of Iowa’s most rare plants are growing in a unique wetland in northwest Iowa that was heavily farmed for 70 years. The wetland – called a fen – relies on groundwater.

Last year, the Natural Resources Conservation Service removed drainage from part of the Emmet County fen. Researchers at the Iowa Lakeside Lab are monitoring its progress. Iowa Lakeside Lab’s Rebecca Kauten says drought the past few summers helped keep weeds from growing and invading the fen.

Researchers have seen plants that they expect to live in most wet prairies. They’re waiting for the types of plants specific to fens to show up, but they’re not sure if they will return or how long that could take. John Pearson is a botanist with the Iowa Department of Natural Resources.

Private land that contains a part of this fen was enrolled as a conservation easement with the NRCS, so it’s protected from future development.

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