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45 Friends of the Mississippi River Camp Cozy Park NRMP <br />sedges are also present such as hop, retrorse, and awl-fruited sedges. The groundlayer also <br />includes a carpet of tree seedlings from green ash and hackberry germinating in moist, nutrient- <br />rich soils. The shrub layer contains a few native species, but common buckthorn is the <br />dominant species in this guild. The tree canopy is approximately 75% closed with some gaps <br />resulting from fallen willow, cottonwood and silver maple, and it is within these gaps where <br />herbaceous vegetation is most dense. <br /> <br />The floodplain forest exhibits a similar species composition to the terrace forest with slightly <br />less diversity. Many species typical of Minnesota floodplains are present: broad-leaf arrowhead, <br />sensitive fern, scouring rush, wild geranium and riverbank grape. Because this area experiences <br />frequent flooding, a considerable amount of trash is present within the unit. Many green ash <br />within the terrace forest and floodplain forest have been infected with emerald ash borer, <br />which will rapidly change the canopy composition and cover as green ash is a dominant species <br />within this unit. Hackberry, silver maple, box elder and cottonwood are also common. <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br />