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The ground layer is dominated by a handful of species, some of which are aggressive nonnatives. <br />The most common nonnative species in the ground layer include creeping Charlie, deadly <br />nightshade, reed canary grass, and smooth brome. Overall, this community received a lowered <br />rank due to the relatively young age of the trees, the frequency of nonnatives, and the lack of <br />sufficient native cover in the ground layer. <br />Community <br />Activity <br />Priority <br />Estimated Cost <br />Comments <br />CP -U2 <br />Remove <br />Medium <br />Approximately <br />Cut and treat all stumps with 25 -50% <br />Buckthorn and <br />$1,500, or 50- <br />solution of Roundup or Garlon. Leave <br />other nonnative <br />100 volunteer <br />cut brush on ground, except where very <br />shrubs <br />hours <br />thick, then stack or chip. <br />CP -U2 <br />Reintroduce <br />Medium <br />$500 — 200 <br />Reintroduce native plant plugs or seed, <br />native flowers <br />depending on <br />Combination of seed and live plants is <br />and grasses <br />number of <br />good combination here. An appendix of <br />typical of <br />species, plants, <br />this report contains a list of <br />Lowland <br />amount of seed. <br />recommended species for reintroducing <br />Hardwood <br />into forest, savanna, and prairie areas. <br />Forest <br />CP -U2 <br />Install <br />Medium -low <br />$100 -500 <br />This is another high profile area that <br />Resource <br />depending on <br />would be suitable for interpretive signage <br />Management <br />size and quantity <br />to explain what natural communities are <br />interpretive <br />of signage <br />present, what management is being <br />sign(s) <br />conducted, and why. <br />Community CP -U3 <br />Floodplain Forest <br />Qualitative Rank: CD <br />Nonnative Shrub Rank: 11 <br />This forest is similar in species composition and character to CP -U -2, with the exceptions that it <br />has larger cottonwood trees and quaking aspen present. The shrub layer here contains silky <br />dogwood as its most common member, with buckthorn being less common. Also, the nonnative <br />white mulberry is found in the shrub layer. The ground layer is similar to CP -U -2 and is <br />dominated by a mix of nonnatives and weedier natives. However, there are some pockets of <br />native graminoids and forbs including boneset, sedges, and blue vervain, concentrated along the <br />wetland edge. Overall, the quality of this forest is moderate. <br />City of Roseville 88 <br />Parks Natural Resource Management <br />