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Acer rubrum - Nyssa sylvatica High Allegheny Plateau-Central Appalachian Seep Forest
Translated Name: Red Maple - Blackgum High Allegheny Plateau-Central Appalachian Seep Forest
Common Name: High Allegheny Plateau-Central Appalachian Acidic Seep Forest
Unique Identifier: CEGL006132
Classification Approach: International Vegetation Classification (IVC)
Summary: This acidic deciduous swamp occurs in the central Appalachian Mountains north of the Cumberland drainage in the Central Appalachians and High Allegheny regions, as well as the adjacent Cumberlands and Western Allegheny Plateau. This community occurs on substrates which are saturated for extended periods during the growing season but which rarely have standing water, including forested seeps, hillsides, streamheads, floodplain edges, and poorly drained depressions. Occurrences tend to be small. Characteristic trees are Acer rubrum and Nyssa sylvatica, with other associates including Tsuga canadensis and Betula alleghaniensis. The shrub stratum includes Alnus serrulata, Photinia pyrifolia (= Aronia arbutifolia), Ilex verticillata, Vaccinium corymbosum, Rhododendron maximum, and Rubus hispidus. Characteristic herbs include Osmunda cinnamomea, Osmunda regalis, Carex folliculata, Carex trisperma, Carex intumescens, Carex stricta, and Poa trivialis. Sphagnum spp. are typical.



Classification

Classification Confidence: Low - Poorly Documented

Vegetation Hierarchy
Class 1 - Forest & Woodland
Subclass 1.B - Temperate & Boreal Forest & Woodland
Formation 1.B.3 - Temperate Flooded & Swamp Forest
Division 1.B.3.Na - Eastern North American-Great Plains Flooded & Swamp Forest
Macrogroup Central Hardwood Swamp Forest
Group Central Interior-Appalachian Seepage Swamp
Alliance Appalachian-Piedmont Red Maple - Blackgum Seepage Forest

This is the revised vegetation hierarchy. For more information see Classification Sources and usnvc.org.

Similar Associations
Unique Identifier Name
CEGL006014 Acer rubrum - Nyssa sylvatica - Betula alleghaniensis / Sphagnum spp. Swamp Forest
CEGL007853 Acer rubrum - Nyssa sylvatica / Ilex verticillata - Vaccinium fuscatum / Osmunda cinnamomea Seep Forest



Related Concepts from Other Classifications

Related Subnational Community Units
These data are subject to substantial ongoing revision and may be out of date for some states.
In the U.S., contact the state Heritage Program for the most complete and up-to-date information at: http://www.natureserve.org/natureserve-network.
Information from programs in other jurisdictions will be posted when they are made available.
Subnation Concept Name Relationship to Standard Confidence Reference
Maryland Acer rubrum - Nyssa sylvatica High Allegheny Plateau, Central Appalachian Forest Equivalent Certain Harrison 2011
West Virginia Acer rubrum / Osmunda cinnamomea var. cinnamomea / Sphagnum spp. forest seep Equivalent Certain Byers et al. 2007


Other Related Concepts
Related Concept Name: Acer rubrum - Nyssa sylvatica High Allegheny Plateau, Central Appalachian Forest
Relationship: = - Equivalent
Reference: Harrison, J. W., compiler. 2004. Classification of vegetation communities of Maryland: First iteration. A subset of the International Classification of Ecological Communities: Terrestrial Vegetation of the United States, NatureServe. Maryland Natural Heritage Program, Maryland Department of Natural Resources, Annapolis. 243 pp.
Related Concept Name: Red Maple - Black-gum Palustrine Forest
Relationship: B - Broader
Reference: 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.
Related Concept Name: Red maple-black gum swamp
Relationship: ? - Undetermined
Reference: CAP [Central Appalachian Forest Working Group]. 1998. Central Appalachian Working group discussions. The Nature Conservancy, Boston, MA.

Ecological Systems Placement

Ecological Systems Placement
Ecological System Unique ID Ecological System Name
CES202.069 High Allegheny Wetland
CES202.604 North-Central Appalachian Acidic Swamp


NatureServe Conservation Status
Global Status: G2 (14Jul2016)
Rounded Global Status: G2 - Imperiled

Distribution
Color legend for Distribution Map
United States Distribution: KY, MD, PA, VA, WV
Global Distribution: United States
Global Range: This acidic deciduous swamp occurs in the central Appalachian Mountains north of the Cumberland drainage in the Central Appalachians and High Allegheny regions, as well as the adjacent Cumberlands and Western Allegheny Plateau, from Pennsylvania to Kentucky.

U.S. Forest Service Ecoregions
Domain Name: Humid Temperate Domain
Division Name: Warm Continental Division
Province Name: Laurentian Mixed Forest Province
Province Code: 212 Occurrence Status: Predicted or probable
Section Name: Northern Glaciated Allegheny Plateau Section
Section Code: 212F Occurrence Status: Predicted or probable
Section Name: Northern Unglaciated Allegheny Plateau Section
Section Code: 212G Occurrence Status: Predicted or probable
Division Name: Hot Continental Division
Province Name: Eastern Broadleaf Forest (Oceanic) Province
Province Code: 221 Occurrence Status: Confident or certain
Section Name: Southern Unglaciated Allegheny Plateau Section
Section Code: 221E Occurrence Status: Confident or certain
Section Name: Northern Cumberland Plateau Section
Section Code: 221H Occurrence Status: Confident or certain
Division Name: Hot Continental Regime Mountains
Province Name: Central Appalachian Broadleaf Forest - Coniferous Forest - Meadow Province
Province Code: M221 Occurrence Status: Confident or certain
Section Name: Northern Ridge and Valley Section
Section Code: M221A Occurrence Status: Confident or certain
Section Name: Allegheny Mountains Section
Section Code: M221B Occurrence Status: Confident or certain


Vegetation

Vegetation Summary: Characteristic trees are Acer rubrum and Nyssa sylvatica, with other associates including Tsuga canadensis and Betula alleghaniensis. The shrub stratum includes Alnus serrulata, Photinia pyrifolia (= Aronia arbutifolia), Ilex verticillata, Vaccinium corymbosum, Rhododendron maximum, and Rubus hispidus. Characteristic herbs include Osmunda cinnamomea, Osmunda regalis, Carex folliculata, Carex trisperma, Carex intumescens, Carex stricta, and Poa trivialis. Sphagnum spp. are typical.

Vegetation Composition (incomplete)
Species Name Rounded Global Status Growth Form Stratum Charact-
eristic
Dominant Constant
Cover Class %
Con-
stancy
%
Acer rubrum G2 Broad-leaved deciduous tree Tree canopy  
 
 
Nyssa sylvatica G2 Broad-leaved deciduous tree Tree canopy  
 
 
Viola appalachiensis G2 Flowering forb Herb (field)      
 
 


Environmental Setting

Wetland Indicator: Y


Dynamic Processes


Plot Sampling & Classification Analysis

Plots stored in VegBank


Authors/Contributors
Concept Author(s): Eastern Ecology Group
Element Description Edition Date: 28Oct2003
Element Description Author(s): Eastern Ecology Group

Ecological data developed by NatureServe and its network of natural heritage programs (see Local Programs) and other contributors and cooperators (see Sources).


References
  • Anderson, M., F. Biasi, and S. Buttrick. 1998. Conservation site selection: Ecoregional planning for biodiversity. The Nature Conservancy, Eastern Regional Office, Boston, MA. 18 pp.

  • Byers, E. A., J. P. Vanderhorst, and B. P. Streets. 2007. Classification and conservation assessment of high elevation wetland communities in the Allegheny Mountains of West Virginia. West Virginia Natural Heritage Program, West Virginia Division of Natural Resources, Elkins.

  • CAP [Central Appalachian Forest Working Group]. 1998. Central Appalachian Working group discussions. The Nature Conservancy, Boston, MA.

  • Eastern Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boston, MA.

  • 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.

  • Harrison, J. W. 2011. The natural communities of Maryland: 2011 working list of ecological community groups and community types. Unpublished report. Maryland Department of Natural Resources, Wildlife and Heritage Service, Natural Heritage Program, Annapolis. 33 pp.

  • Harrison, J. W., compiler. 2004. Classification of vegetation communities of Maryland: First iteration. A subset of the International Classification of Ecological Communities: Terrestrial Vegetation of the United States, NatureServe. Maryland Natural Heritage Program, Maryland Department of Natural Resources, Annapolis. 243 pp.


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