Helen Allison Savanna SNA |
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Anoka County |
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| Size | 92 acres |
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| Parking | N45 22.874 W93 9.800 |
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| Hiking Trails | None |
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| Ecological Classification | Province |
Eastern Broadleaf Forest Province |
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Section |
Minnesota & NE Iowa Morainal |
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Subsection(s) |
Anoka Sand Plain |
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Land Type Association(s) |
Anoka Lake Plain |
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| Native Plant Communities1 | Dry Barrens Oak Savanna (Southern): Oak Subtype Oak - Aspen Woodland Sedge Meadow |
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| Ownership | Minnesota Department of Natural Resources The Nature Conservancy |
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| Comments |
This SNA is adjacent to the Cedar Creek Natural History Area. In 1975 this site was designated a National Natural Landmark. |
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| Sedge marsh | Dry prairie | Oak sand savanna | |||||
| Amphibians | Amphibians found on this site include eastern tiger salamander (Ambystoma tigrinum), northern spring peeper (Pseudacris crucifer crucifer), eastern gray treefrog (Hyla versicolor), and wood frog (Rana sylvatica) can all be found here. |
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| Birds | One bird species with protected status in Minnesota has been seen here: Special concern – Red-shouldered Hawk (Buteo lineatus) Other birds commonly seen on this site, along with those listed below, include Wild Turkey (Meleagris gallopavo), Eastern Wood-peewee (Contopus virens), Eastern Bluebird (Sialia sialis), Eastern Towhee (Pipilo erythrophthalmus), and Vesper Sparrow (Pooecetes gramineus). |
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| Plants | Five plant species with protected status in Minnesota are found here: Endangered – tall nutrush (Scleria triglomerata) Threatened – bog white violet (Viola lanceolata ssp. lanceolata) Special concern – seaside three-awn (Aristida tuberculosa), rhombic evening primrose (Oenothera rhombipetala), woolly beachheather (Hudsonia tomentosa) Other plants found here, in addition to those listed below, include steeplebush (Spiraea tomentosa var. rosea), long-bearded hawkweed (Hieracium longipilum), American pasqueflower (Anemone patens var. multifida), and silky prairie clover (Dalea villosa var. villosa). University of Minnesota Herbarium Plant List Plants frequently found in: |
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alsike clover (Trifolium hybridum) arrow-leaved violet (Viola sagittata var. sagittata) bur oak (Quercus macrocarpa var. macrocarpa) candle anemone (Anemone cylindrica) common cinquefoil (Potentilla simplex) hairy puccoon (Lithospermum caroliniense var. croceum) Indian hemp (Apocynum cannabinum) large-flowered beardtongue (Penstemon grandiflorus) northern pin oak (Quercus ellipsoidalis) Philadelphia fleabane (Erigeron philadelphicus var. philadelphicus) prairie groundsel (Packera plattensis) prairie spiderwort (Tradescantia occidentalis var. occidentalis) slender beardtongue (Penstemon gracilis var. gracilis) starry false Solomon’s seal (Maianthemum stellatum) tall cinquefoil (Drymocallis arguta) western poison ivy (Toxicodendron rydbergii) white clover (Trifolium repens) |
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| Reptiles | One reptile species with protected status in Minnesota is found here: Special concern – gopher snake (Pituophis catenifer) |
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| Visits | 6/19/2005 |
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