Adjacent to cobble bar is a big bluestem meadow. Behind that is forest. The opposite bank of the river is forested with a single residence and mowed lawn to the edge of river. Adjacent forest is sycamore, ash, shagbark hickory, black gum and river birch. Bridge and road 200m upstream.;Cobble bar with herbaceous vegetation, kept open by high water table and flooding. Several minor channels run through plot and vegetation reflects varying frequency of innundation. Woody species are on microtopographic highs. Entire plot is inundated during higher flows. This community reflects the drier limit of where Justicia can dominate.
Representativeness
Plot was placed to sample cobble bar with small population of Ptilimnium fluviatile at downstream end. Cobble bar is on river right.