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CEGL006019 Pinus strobus - Tsuga canadensis / Acer pensylvanicum / Polystichum acrostichoides Forest
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Eastern White Pine - Eastern Hemlock / Striped Maple / Christmas Fern Forest
Colloquial Name: Central Appalachian White Pine - Eastern Hemlock Forest
Hierarchy Level: Association
Type Concept: This dry-mesic white pine - hemlock forest of the northern central Appalachian Mountains and High Allegheny Plateau occurs on well-drained, nutrient-poor acidic soils. The vegetation is a closed-canopy conifer forest dominated by Pinus strobus and/or Tsuga canadensis. Canopy associates include Fagus grandifolia, Acer rubrum, Betula lenta, Betula alleghaniensis, Quercus rubra, and Liriodendron tulipifera. The sparse shrub layer contains Acer spicatum, Hamamelis virginiana, Acer pensylvanicum, and Viburnum acerifolium. Rhododendron maximum also occurs in this association in northern Pennsylvania. The sparse herb layer includes Cypripedium acaule, Gaultheria procumbens, Lycopodium spp., Maianthemum canadense, Trientalis borealis, Mitchella repens, Medeola virginiana, and Polystichum acrostichoides.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: The compositional and environmental factors that differentiate these community types need further scrutiny. Additional inventory and data collection is needed for further evaluation of this vegetation type''s distribution and characterization.
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: This is a closed-canopy, largely coniferous forest dominated by Pinus strobus and Tsuga canadensis in variable proportions. Canopy associates include Fagus grandifolia, Acer rubrum, Betula lenta, Betula alleghaniensis, Quercus rubra, and Liriodendron tulipifera. The often sparse shrub layer contains Acer pensylvanicum, Acer spicatum, Hamamelis virginiana, and Viburnum acerifolium. Herb cover is usually limited by deep shade but includes Cypripedium acaule, Gaultheria procumbens, Lycopodium spp., Maianthemum canadense, Mitchella repens, Polystichum acrostichoides, and Trientalis borealis.
Dynamics: No Data Available
Environmental Description: This vegetation type is reported to occur on dry-mesic sites (e.g., middle slopes) with infertile, sandy soils.
Geographic Range: The range of this community is restricted to the northern part of the Central Appalachians in Pennsylvania, and possibly the High Allegheny Plateau in Pennsylvania and New York. It is also reported as possibly occurring in ravines along the Susquehanna River in the Pennsylvania Piedmont (Lancaster County) (G. Podniesinski pers. comm.).
Nations: US
States/Provinces: OH, PA
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.688339
Confidence Level: Low - Poorly Documented
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.3 Appalachian-Interior-Northeastern Mesic Forest Macrogroup | M883 | 1.B.2.Na.3 |
| Group | 1.B.2.Na.3.b Appalachian-Allegheny Northern Hardwood Forest | G742 | 1.B.2.Na.3.b |
| Alliance | A3302 Eastern Hemlock - Sweet Birch - Yellow Birch Forest Alliance | A3302 | 1.B.2.Na.3.b |
| Association | CEGL006019 Eastern White Pine - Eastern Hemlock / Striped Maple / Christmas Fern Forest | CEGL006019 | 1.B.2.Na.3.b |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: ? Hemlock - beech consociation (Lutz 1930)
< White Pine - Hemlock: 22 (Eyre 1980)
< White Pine - Hemlock: 22 (Eyre 1980)
- Eastern Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boston, MA.
- Eyre, F. H., editor. 1980. Forest cover types of the United States and Canada. Society of American Foresters, Washington, DC. 148 pp.
- 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.
- Lutz, H. J. 1930. The vegetation of Heart''s Content, a virgin forest in northwestern Pennsylvania. Ecology 11:1-29.
- Smith, T. L. 1983. Natural ecological communities of Pennsylvania. Draft, revised 1991. Pennsylvania Natural Diversity Inventory, Middletown, PA.