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Pteridium aquilinum - Bromus kalmii Sand Grassland Alliance | NatureServe Biotics 2019
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Name: Pteridium aquilinum - Bromus kalmii Sand Grassland Alliance Reference: NatureServe Biotics 2019 Description: This alliance, currently documented from the Great Lakes region and adjacent Canada, comprises meadows dominated by <i>Pteridium aquilinum</i> on level plains or rolling uplands and in depressions ("frost pockets") in pitted outwash topography. It is often of anthropogenic origin. Stands may have originated after severe slash fires following logging that destroyed or reduced the humus in the soil. In some cases the sites may have originally been <i>Pinus resinosa</i> or <i>Pinus banksiana</i> barrens, where the pines occurred as a sparse layer over the grassland. This vegetation is fairly stable, slowly invaded by <i>Populus tremuloides</i> and <i>Abies balsamea</i>, but frost and other factors may slow their invasion. Stands are dominated by ferns, forbs, and graminoids, with tree cover less than 10%. <i>Pteridium aquilinum</i> may form an almost continuous cover of fronds. Graminoid diversity is high, including <i>Bromus kalmii, Danthonia spicata, Elymus trachycaulus</i>, and <i>Poa compressa</i>. Associated forbs include <i>Symphyotrichum ciliolatum, Solidago nemoralis</i>, and <i>Fragaria virginiana</i>. Exotic species composition can be high, including <i>Hieracium aurantiacum, Lactuca serriola, Phleum pratense, Poa compressa, Poa pratensis, Rumex acetosella</i>, and <i>Verbascum thapsus</i>.  Accession Code: urn:lsid:vegbank.org:commConcept:38254-{D220BE7B-94C3-450F-B832-6E78580F0CB0} Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 26-Sep-2014 to: ongoing
	status: accepted Community's Parent: Laurentian-Acadian Acidic Scrub & Grassland Group This Community's Level: Alliance This Community's Children: Show/Hide   Pteridium aquilinum - Bromus kalmii Grassland		Names:   UID: ELEMENT_GLOBAL.2.899156 NatureServe Explorer   Code: A1599   Translated: Western Brackenfern - Arctic Brome Sand Grassland Alliance   Common: Brackenfern Sand Grassland   Scientific: Pteridium aquilinum - Bromus kalmii Sand Grassland Alliance (convergence) and Synonyms: (similar) A.1599 (similar) Pteridium aquilinum - Bromus kalmii Herbaceous Alliance