Laserfiche WebLink
grisea). Reed canary grass (Phalaris arundinacea) is highly invasive on sites where the <br />canopy has been opened by disturbance. <br />Woody vines are sparse to patchy (5-50% cover), mostly present in lower strata; Virginia <br />creeper (Parthenocissus spp.) and wild grape (Vitis riparia) are typical. <br />Shrub layer and subcanopy are sparse to patchy (5-50% cover); typical species include <br />American elm, hackberry, box elder, Missouri gooseberry (Ribes missouriensis), prickly ash <br />(Zanthoxylum americanum), and chokecherry (Prunus virginiana). <br />Canopy is interrupted to continuous (50-100% cover). Species com ition is variable, but <br />American elm, green ash, hackberry, basswood, box elder, silver lack ash, and <br />cottonwood are often common. Swamp white oak is importan som ds in <br />southeastern Minnesota." <br />Southern Mesic Savanna - UPs24 <br />This community type will occur in a smaljunits. <br />ion is tly the FF 1 subunit, as <br />well as the existing grassland and savannUPs2 make up less than 10 acres <br />on the restored property, but would provnique exten • of the restored farmfield. <br />Restoration will commence in the first yewoody inva �gecies removal on FF1 <br />and the grassland units, with follow-up tr urring fo a next few years. Once <br />invaders are removed, restoration will coe atment of herbaceous <br />invaders, prescribed burns and interseed <br />Southern mesic savannas a ly treed munities with tallgrass-dominated <br />ground layers on somew poorl ained to drained loam soils mainly formed in <br />unsorted glacial till, s es in s er over till, and locally in lacustrine <br />sediments and outwash d re arily on level to gently rolling sites. Drought <br />stress is irregular in occurre d usually not severe. <br />Graminoiqiwver is in ted to �ftinuous (50-100%). Tall grasses dominate, but <br />several eight grass re also important. Big bluestem (Andropogon gerardii) and <br />Indian gra rghastru ,mans) are the dominant tallgrasses, with prairie dropseed <br />(Sporobolus lepis) e' er a codominant or subdominant component. On the drier end <br />of the moisture en the bluestem (Schizachyrium scoparium), porcupine grass (Stipa <br />spartea), and side-rama (Bouteloua curtipendula) are important. <br />Forb cover is sparse to patchy (5-50%). The most common species are heart -leaved <br />alexanders (Zizia aptera), heath aster (Aster ericoides), stiff and Canada goldenrods <br />(Solidago rigida and S. canadensis), purple and white prairie clovers (Dalea purpurea and D. <br />candida), silverleaf scurfpea (Pediomelum argophyllum), stiff sunflower (Helianthus <br />pauciflorus), white sage (Artemisia ludoviciana), northern bedstraw (Galium boreale), and <br />smooth blue aster (Aster laevis). Maximilian's sunflower (Helianthus maximiliam), tall <br />meadow -rue (Thalictrum dasycarpum), prairie phlox (Phlox pilosa), and gray -headed <br />coneflower (Ratibida pinnata) are common in moister examples; rough blazing star (Liatris <br />Friends of the Mississippi W. H. Houlton Conservation Area NRMP <br />57 <br />