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Laurentian-Acadian Limestone Woodland Group | NatureServe Biotics 2019
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Name: Laurentian-Acadian Limestone Woodland Group Reference: NatureServe Biotics 2019 Description: This group comprises forests and woodlands on thin-soil limestone habitats, including pavement (including those associated with alvars) bluffs adjacent to lakes, cliffs, or talus and colluvial slopes, and found in the eastern parts of the Laurentian-Acadian mixed forest region of southeastern Canada and northeastern United States. Physiognomy in this group varies from evergreen conifers to mainly deciduous hardwoods. The canopy is generally open woodland, but also includes closed forests occurring on limestone bluffs and cliffs. Dominants include the conifers <i>Thuja occidentalis</i> and, less commonly, <i>Juniperus virginiana</i> and <i>Pinus banksiana</i>. <i>Acer saccharum</i> and <i>Tilia americana</i> are common species in mesic limestone habitats, along with <i>Ostrya virginiana, Carya ovata</i>, and <i>Quercus rubra</i>. Drier habitats are characterized by <i>Quercus macrocarpa</i>. Other associates may include <i>Quercus muehlenbergii</i> and <i>Fraxinus americana</i>. Characteristic shrub and herb species need to be described. In savanna conditions, the most abundant trees are <i>Thuja occidentalis</i> and <i>Pinus banksiana</i>. There may be fairly diverse shrub and herb layers similar to the alvar grasslands and shrublands. Understory plants of this group include <i>Aquilegia canadensis, Carex eburnea, Cryptogramma stelleri, Cypripedium parviflorum, Cystopteris bulbifera, Dasiphora fruticosa ssp. floribunda, Packera paupercula</i>, and many others.  Accession Code: urn:lsid:vegbank.org:commConcept:40303-{EB955659-8200-4ECF-A046-685DB68F98F3} Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 06-May-2015 to: ongoing
	status: accepted Community's Parent: Pinus strobus - Pinus banksiana - Quercus ellipsoidalis Forest & Woodland Macrogroup This Community's Level: Group This Community's Children: Show/Hide   Quercus macrocarpa - Carya ovata Northern Limestone Woodland Alliance   Quercus muehlenbergii - Juniperus virginiana Alvar Woodland Alliance   Thuja occidentalis Limestone Woodland Alliance		Names:   UID: ELEMENT_GLOBAL.2.877335 NatureServe Explorer   Code: G655   Scientific: Laurentian-Acadian Limestone Woodland Group