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File:Winona 1.jpg|alt=bioretention photo File:Winona 2.jpg|alt=bioretention photo File:Winona 3.jpg|alt=bioretention photo File:Winona 4.jpg|alt=bioretention photo File:Finished basin with simple groupings of shrubs grasses and trees.png|alt=This picture shows a finished basin with simple groupings of shrubs grasses and trees </gallery>
- Click on an image for enlarged view.
Photo courtesy of Katherine McLellan.
