Island across Black Fork is occupied by a sycamore floodplain forest with nearly 100% ground cover by Microstegium vimineum.;Alluvial deposition bar with cobble substrate at confluence of rivers. Community is a prairie dominated by Andropogon gerardii with tall shrub sized Platanus occidentalis. There is abundant flotsam and a flood deposited log in plot, several exotic weeds are well established but flood disturbance helps keep the natives dominant.
Representativeness
Plot is in center of a small patch (but large for this c.t.) of riverscour prairie with sycamore saplings--plot samples most open physiognomy.