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Juniperus virginiana / Corydalis sempervirens Cliff Sparse Vegetation | NatureServe Biotics 2019
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Name: Juniperus virginiana / Corydalis sempervirens Cliff Sparse Vegetation Reference: NatureServe Biotics 2019 Description: This sparsely vegetated cliff association occurs in the oak - pine - hemlock forest region of the northeastern U.S. The setting is dry vertical exposures of resistant acidic bedrock such as granite, quartzite, sandstone, shale or schist, with little or no soil development. These cliffs are mostly dry but may contain small areas of seepy conditions, with associated floristic variation. The patchy vegetation is restricted to cracks and crevices and can vary from well-vegetated to barren across the cliff face. In most cases, overall cover averages less than 25%. The association presents itself as a mixture of open rock, scrubby trees and shrubs, herbaceous plants, and bryoids. Typical tree species include <i>Juniperus virginiana, Fraxinus americana, Acer rubrum</i>, and <i>Betula papyrifera</i>; none usually grow very large. Individuals of additional tree species from the surrounding forest may also be present; these include <i>Tsuga canadensis, Quercus</i> spp., and <i>Carya</i> spp. <i>Rubus odoratus, Rubus allegheniensis</i>, and <i>Rhus copallinum</i> are representative shrubs. Woody vines include <i>Vitis aestivalis</i> and <i>Parthenocissus quinquefolia</i>. Herbaceous composition varies; typical species include <i>Deschampsia flexuosa, Danthonia spicata, Campanula rotundifolia, Aquilegia canadensis, Corydalis sempervirens, Saxifraga virginiensis</i>, and <i>Woodsia ilvensis</i>. <i>Adlumia fungosa</i> may be found in these habitats; <i>Opuntia humifusa</i> occurs in some of the most southerly occurrences of this association.  Accession Code: urn:lsid:vegbank.org:commConcept:35065-{F44F98B2-F291-41AC-BD4C-407AFA80BF81} Plot-observations of this Community Concept: 3
	Party Perspective according to: NatureServe (organization) Perspective from: 22-Jun-2006 to: ongoing
	status: accepted Community's Parent: Appalachian-Northeastern Acidic Talus Alliance This Community's Level: Association This Community's Children: [none]		Names:   UID: ELEMENT_GLOBAL.2.687085 NatureServe Explorer   Code: CEGL006422   Translated: Eastern Red-cedar / Rock Harlequin Cliff Sparse Vegetation   Common: Eastern Temperate Acidic Cliff   Scientific: Juniperus virginiana / Corydalis sempervirens Cliff Sparse Vegetation (convergence) and Synonyms: (similar) Juniperus virginiana - Corydalis sempervirens Cliff Sparse Vegetation (similar) Juniperus virginiana / Corydalis sempervirens Cliff Sparse Vegetation