Print Report
CEGL006121 Quercus ilicifolia - Prunus pumila var. susquehanae Shrubland
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Quercus ilicifolia - Prunus pumila var. susquehanae Shrubland
Colloquial Name: Ridgetop Bear Oak Barrens
Hierarchy Level: Association
Type Concept: This Quercus ilicifolia shrubland occurs on ridgetops, summits and rock outcrops in the northeastern United States. It occurs on extremely shallow, stable acidic soils over bedrock. Open bedrock is common. This shrubland is dominated by Quercus ilicifolia, which occurs with variable cover depending on site conditions. Associated shrubs include Vaccinium angustifolium, Vaccinium pallidum, Comptonia peregrina, Kalmia angustifolia, Gaylussacia baccata, Aronia melanocarpa, Quercus prinoides, and Prunus pumila. The herbaceous layer varies from sparse to well-developed depending on the density of shrub cover. Typical herbs include Deschampsia flexuosa, Carex pensylvanica, Danthonia spicata, Schizachyrium scoparium, Pteridium aquilinum, Gaultheria procumbens, Comandra umbellata, Melampyrum lineare, Hypericum gentianoides, Corydalis sempervirens, Sibbaldiopsis tridentata, plus Andropogon gerardii or Polygonatum biflorum at some sites. Scattered and stunted trees are common and include species from the surrounding ridgetop forests, such as Quercus prinus, Quercus rubra, Quercus alba, Pinus rigida, Populus tremuloides, Betula populifolia, and Carya glabra.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: No Data Available
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: This shrubland is dominated by Quercus ilicifolia, which occurs with variable cover depending on site conditions. Associated shrubs include Vaccinium angustifolium, Vaccinium pallidum, Comptonia peregrina, Kalmia angustifolia, Gaylussacia baccata, Aronia melanocarpa, Quercus prinoides, and Prunus pumila. The herbaceous layer varies from sparse to well-developed depending on the density of shrub cover. Typical herbs include Deschampsia flexuosa, Carex pensylvanica, Danthonia spicata, Schizachyrium scoparium, Pteridium aquilinum, Gaultheria procumbens, Comandra umbellata, Melampyrum lineare, Hypericum gentianoides, Corydalis sempervirens, Sibbaldiopsis tridentata (= Potentilla tridentata), plus Andropogon gerardii or Polygonatum biflorum at some sites. Scattered and stunted trees are common and include species from the surrounding ridgetop forests, such as Quercus prinus, Quercus rubra, Quercus alba, Pinus rigida, Populus tremuloides, Betula populifolia, and Carya glabra.
Dynamics: No Data Available
Environmental Description: This shrubland occurs on extremely shallow, stable acidic soils over bedrock, typically on ridges. Open bedrock is common. Fire is a secondary influence.
Geographic Range: This association is known from ridgelines from southern New England south to interior New Jersey and Pennsylvania.
Nations: US
States/Provinces: CT, MA, NJ, NY, PA
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.689771
Confidence Level: Low
Confidence Level Comments: No Data Available
Grank: G4?
Greasons: No Data Available
| Type | Name | Database Code | Classification Code |
|---|---|---|---|
| Class | 1 Forest & Woodland Class | C01 | 1 |
| Subclass | 1.B Temperate & Boreal Forest & Woodland Subclass | S15 | 1.B |
| Formation | 1.B.2 Cool Temperate Forest & Woodland Formation | F008 | 1.B.2 |
| Division | 1.B.2.Na Eastern North American Forest & Woodland Division | D008 | 1.B.2.Na |
| Macrogroup | 1.B.2.Na.2 Appalachian-Northeastern Oak - Hardwood - Pine Forest & Woodland Macrogroup | M502 | 1.B.2.Na.2 |
| Group | 1.B.2.Na.2.h Pitch Pine - Virginia Pine - Bear Oak Woodland & Barrens Group | G906 | 1.B.2.Na.2.h |
| Alliance | A4372 Pitch Pine Rocky Woodland Alliance | A4372 | 1.B.2.Na.2.h |
| Association | CEGL006121 <i>Quercus ilicifolia - Prunus pumila var. susquehanae</i> Shrubland | CEGL006121 | 1.B.2.Na.2.h |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Quercus ilicifolia shrublands (Metzler and Barrett 2006)
- Eastern Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boston, MA.
- Edinger, G. J., D. J. Evans, S. Gebauer, T. G. Howard, D. M. Hunt, and A. M. Olivero, editors. 2014a. Ecological communities of New York state. Second edition. A revised and expanded edition of Carol Reschke''s ecological communities of New York state. New York Natural Heritage Program, New York State Department of Environmental Conservation, Albany, NY.
- Fike, J. 1999. Terrestrial and palustrine plant communities of Pennsylvania. Pennsylvania Natural Diversity Inventory. Pennsylvania Department of Conservation and Recreation, Bureau of Forestry, Harrisburg, PA. 86 pp.
- Metzler, K., and J. Barrett. 2006. The vegetation of Connecticut: A preliminary classification. State Geological and Natural History Survey, Report of Investigations No. 12. Connecticut Natural Diversity Database, Hartford, CT.
- Perles, S. J., G. S. Podniesinski, E. Eastman, L. A. Sneddon, and S. C. Gawler. 2007. Classification and mapping of vegetation and fire fuel models at Delaware Water Gap National Recreation Area. Technical Report NPS/NER/NRTR--2007/076. National Park Service, Philadelphia, PA. 2 volumes.
- Perles, S. J., G. S. Podniesinski, M. Furedi, B. A. Eichelberger, A. Feldmann, G. Edinger, E. Eastman, and L. A. Sneddon. 2008. Vegetation classification and mapping at Upper Delaware Scenic and Recreational River. Technical Report NPS/NER/NRTR--2008/133. National Park Service, Philadelphia, PA. 370 pp.
- Swain, P. C., and J. B. Kearsley. 2014. Classification of the natural communities of Massachusetts. Version 2.0. Natural Heritage & Endangered Species Program, Massachusetts Division of Fisheries and Wildlife. Westborough, MA. [http://www.mass.gov/nhesp/http://www.mass.gov/eea/agencies/dfg/dfw/natural-heritage/natural-communities/classification-of-natural-communities.html]