Downstream from Cass, with long history of human occupation. Floodplains here are weedy compared to further upstream towards Hosterman. Sycamore and hemlock grow on higher terraces.;Frequently flooded floodplain terrace on an island in river. Moist, sandy soils support a monoculture of river birch with hydrophytic herbs in the understory. There is a large flotsom pile upstream on the edge of this forest and the adjoining prairie patch. Substrate is light mix of flotsom litter and sand.
Representativeness
Medium sized patch of river birch forest on lower floodplain terrace. Very similar to stands seen on islands upstream. Plot includes lower flow channel with no rooted trees, but overhanging canopy.