Laserfiche WebLink
<br />. 75X series - Water modifiers, Spring feature <br /> <br />Search for Rare Plant Species <br />Where natural areas occur, particularly those of better quality, there is the potential for <br />the occurrence of rare species. Recognizing this, the plant ecologists from Bonestroo <br />who conducted field inventory work made an effort to search habitats that had a high <br />likelihood of supporting rare plants. <br /> <br />It is also important to note that although plant ecologists searched areas they had <br />access to that appeared likely to host rare plants, limited property access, and one- <br />time visit to only a fraction of natural areas in the city means that some rare plant <br />populations have likely gone undocumented. <br /> <br />Below is a list organized by habitat type of potential rare plant species that were not <br />seen during the inventory, but are thought to have the potential to occur within the <br />remaining plant community remnants in the city. <br /> <br />It is important to note that while this list is provided as a reference, it is not all-inclusive <br />of rare species that have the potential to be encountered in the city. Likewise, some <br />rarelhighly uncommon plants tend to be found in special kinds of transitional habitats <br />that may appear to be disturbed. For instance, lily-leaved twayblade orchid tends to <br />be found in dry woodland edges that have been recently colonized by brush, and may <br />have formerly been old fields dominated by non-native, cool season pasture grasses. <br /> <br />Those species that are rare, but capable of colonizing select disturbed areas should <br />also be taken into account when considering whether an additional search is <br />warranted. We recommend that an experienced plant ecologist be consulted when <br />considering whether an additional search is warranted in natural/semi-natural areas' <br />threatened by development. <br /> <br />Oak Forest: <br /> <br />Common Name <br /> <br />Handsome sedge <br />Plantain-leaved sedge <br />Big tick-trefoil <br />Stemless tick-trefoil <br />Goldie's fern <br />One-flowered broomrape <br /> <br />Scientific Name <br /> <br />Carex formosa <br />Carex plantaginea <br />Oesmodium cuspidatum <br />Oesmodium nudiflorum <br />Oryopteris go/diana <br />Orobanche unif/ora <br /> <br />Minnesota Status <br /> <br />Endangered <br />Endangered <br />Special Concern <br />Special Concern <br />Special Concern <br />Special Concern <br /> <br />City of Elk River, MN - Natural Resouce Inventory <br />Bonestroo Natural Resources, September 2004 <br /> <br />14 <br />