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CEGL006240 Quercus palustris - (Quercus bicolor) - Acer rubrum / Vaccinium corymbosum / Osmunda cinnamomea Wet Forest
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Pin Oak - (Swamp White Oak ) - Red Maple / Highbush Blueberry / Cinnamon Fern Wet Forest
Colloquial Name: Northeastern Pin Oak - Swamp White Oak Wet Forest
Hierarchy Level: Association
Type Concept: This association comprises a perched hardwood swamp occurring in the northeastern United States from New Hampshire to Virginia. These are closed to partially open, deciduous, seasonally flooded forests. They occur in basin areas that are seasonally wet (winter and early spring) with a shallow, perched water table, but tend to be dry in late summer and early fall. There is usually pronounced hummock-and-hollow microtopography. They are found on sandy loams or clayey soils of glacial lakeplains, or on soils with impermeable subsoils in unglaciated regions. There is generally some layer that impedes drainage. The canopy is codominated by Quercus palustris and/or Quercus bicolor and Acer rubrum. Common associates include Nyssa sylvatica and occasionally Tsuga canadensis or Carya spp. The shrub layer may be sparse or dense and contains Ilex verticillata, Vaccinium corymbosum, Viburnum dentatum, Cephalanthus occidentalis, and Kalmia angustifolia. The sparse herb layer may include Osmunda cinnamomea, Scirpus cyperinus, Thelypteris palustris, Thelypteris simulata, Carex frankii, Glyceria striata, Isoetes spp., Carex crinita, Onoclea sensibilis, and Osmunda regalis.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: Vegetation tentatively assigned to this association was classified through analysis of a regional dataset assembled for the NCR vegetation mapping project. The type was represented by nine Maryland and Virginia plots. Composition of this southern variant differs somewhat from the existing description but is conceptually similar. Although six states to the north of Maryland and Virginia have recognized this type, substantial data from across this range are lacking (L. Sneddon pers. comm.). Therefore, at present, this association represents a broad concept that may have to be split once variation over its range is more fully understood.
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: This seasonally flooded pin oak community occurs in the northeastern United States. These are closed to partially open, deciduous, seasonally flooded forests codominated by Quercus palustris and Acer rubrum. Common associates include Quercus bicolor, Nyssa sylvatica, and occasionally Tsuga canadensis or Carya spp. The shrub layer may be sparse or dense and contains Ilex verticillata, Vaccinium corymbosum, and Viburnum dentatum. The sparse herb layer may include Osmunda cinnamomea, Scirpus cyperinus, Thelypteris palustris, Thelypteris simulata, Carex frankii, Glyceria striata, Isoetes spp., Carex crinita, Onoclea sensibilis, and Osmunda regalis. Occurrences at the southern end of the range in Maryland and northern Virginia are generally very species-poor, with an overstory dominated by Quercus palustris (rarely Quercus bicolor), Acer rubrum, and Liquidambar styraciflua. Species of highbush blueberries (Vaccinium corymbosum, Vaccinium fuscatum, and Vaccinium formosum) are the most characteristic shrubs. Herbs are very sparse.
Dynamics: No Data Available
Environmental Description: This vegetation is found in basin areas that are seasonally wet (winter and early spring) with a shallow, perched water table, but which tend to be dry in late summer and early fall. There is usually pronounced hummock-and-hollow microtopography. They are found on sandy loams or clayey soils of glacial lakeplains, or on soils with impermeable subsoils in unglaciated regions. Although substrates are variable, all generally have some layer that impedes drainage and may receive groundwater seepage. Soils collected from Maryland and Virginia plots have very low pH and base cation levels.
Geographic Range: This vegetation occurs in southern New England south to Maryland and northern Virginia.
Nations: US
States/Provinces: CT, DC?, DE, MA, MD, NH, NJ, NY, PA, VA
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.687748
Confidence Level: Moderate
Confidence Level Comments: No Data Available
Grank: G3
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.3 Temperate Flooded & Swamp Forest Formation | F026 | 1.B.3 |
| Division | 1.B.3.Na Eastern North American-Great Plains Flooded & Swamp Forest Division | D011 | 1.B.3.Na |
| Macrogroup | 1.B.3.Na.2 Pin Oak - Green Ash - Blackgum Swamp Forest Macrogroup | M503 | 1.B.3.Na.2 |
| Group | 1.B.3.Na.2.h <i>Quercus bicolor - Fagus grandifolia - Acer rubrum</i> Swamp Forest Group | G918 | 1.B.3.Na.2.h |
| Alliance | A4476 <i>Quercus palustris - Quercus bicolor - Acer rubrum</i> Appalachian Swamp Forest Group | A4476 | 1.B.3.Na.2.h |
| Association | CEGL006240 Pin Oak - (Swamp White Oak ) - Red Maple / Highbush Blueberry / Cinnamon Fern Wet Forest | CEGL006240 | 1.B.3.Na.2.h |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: >< Tupelo - Swamp White Oak - Pin Oak Association (Searcy et al. 1994)
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