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CEGL007046 Acer rubrum - Fraxinus pennsylvanica / Lindera benzoin / Osmunda regalis - Pedicularis lanceolata Seep Forest
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Red Maple - Green Ash / Northern Spicebush / Royal Fern - Swamp Lousewort Seep Forest
Colloquial Name: Georgia Blue Ridge Forested Fen
Hierarchy Level: Association
Type Concept: This red maple forested seep community type is found in the Southern Blue Ridge of Georgia, occurring in a zone of ultramafic rock that encircles Brasstown Bald. Stands occur on flat to gently sloping sites near stream headwaters. The source of hydrology is from a combination of groundwater seepage and input from storm events. The soils in this forested fen are poorly drained, ranging seasonally from saturated to moist. The parent material is a mixture of amphibolite and ultramafics (including dunite). Hydrophytic plants dominate the vegetation. The overstory is composed of mixed deciduous hardwoods with a partially open canopy that is 20-30 m tall. Typical tree dominants include Acer rubrum var. trilobum, Fraxinus pennsylvanica, and Liriodendron tulipifera. Other woody associates occur as minor components and include Cornus florida and Pinus strobus. The subcanopy is medium to tall in height (10-15 m) and is generally well-developed. The shrub layer is moderately well-developed. Species present include Lindera benzoin and Alnus serrulata. The ground cover is composed of mixed sedges, ferns, and forbs. Species present include Pedicularis lanceolata, Osmunda regalis, Juncus coriaceus, Carex gynandra, Lobelia siphilitica, Dichanthelium clandestinum, Onoclea sensibilis, Scirpus polyphyllus, Solidago patula, Oxypolis rigidior, Boehmeria cylindrica, and Spiranthes ovalis. Dense hummocks of mosses can be prominent in areas of shallow ponding, including Thuidium delicatulum.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: This association in Georgia is known from just one location near Trackrock Gap where ultramafic substrates are exposed at the surface layer; it is also influence by abundant seepage and special hydrologic conditions. Other sites are possible along the extensive zone of mafic and ultramafic rock that encircles Brasstown Bald.
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: The overstory is composed of mixed deciduous hardwoods with a partially open canopy that is 20-30 m tall. Typical tree dominants include Acer rubrum var. trilobum, Fraxinus pennsylvanica, and Liriodendron tulipifera. Other woody associates occur as minor components and include Cornus florida and Pinus strobus. The subcanopy is medium to tall in height (10-15 m) and is generally well-developed. The shrub layer is moderately well-developed. Species present include Lindera benzoin and Alnus serrulata. The ground cover is composed of mixed sedges, ferns, and forbs. Species present include Pedicularis lanceolata, Osmunda regalis, Juncus coriaceus, Carex gynandra, Lobelia siphilitica, Dichanthelium clandestinum, Onoclea sensibilis, Scirpus polyphyllus, Solidago patula, Oxypolis rigidior, Boehmeria cylindrica, and Spiranthes ovalis. Dense hummocks of mosses can be prominent in areas of shallow ponding, including Thuidium delicatulum.
Dynamics: No Data Available
Environmental Description: This red maple forested seep community type is found in the Southern Blue Ridge of Georgia, occurring in a zone of ultramafic rock that encircles Brasstown Bald. Stands occur on flat to gently sloping sites near stream headwaters. The source of water is from a combination of groundwater seepage input from storm events. The soils in this forested fen are poorly drained, ranging seasonally from saturated to moist. The parent material is a mixture of amphibolite and ultramafics (including dunite).
Geographic Range: This red maple forested fen community type can be found in the Southern Blue Ridge of northern Georgia, and perhaps in localized parts of southwestern North Carolina with appropriate geology.
Nations: US
States/Provinces: GA
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.867537
Confidence Level: Low - Poorly Documented
Confidence Level Comments: No Data Available
Grank: G1?
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.a Red Maple - Blackgum - Sweetgum Seepage Forest Group | G044 | 1.B.3.Na.2.a |
| Alliance | A3358 Red Maple / Hazel Alder - Common Winterberry Appalachian-Piedmont Seepage Forest Alliance | A3358 | 1.B.3.Na.2.a |
| Association | CEGL007046 Red Maple - Green Ash / Northern Spicebush / Royal Fern - Swamp Lousewort Seep Forest | CEGL007046 | 1.B.3.Na.2.a |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Acer rubrum - Fraxinus pennsylvanica / Lindera benzion / Osmunda regalis - Pedicularis lanceolata Forest (Govus 2011)
- GNHP [Georgia Natural Heritage Program]. 2018. Unpublished data. Georgia Natural Heritage Program, Wildlife Resources Division, Georgia Department of Natural Resources, Social Circle.
- Govus, T. 2011. Documentation of rare or outstanding natural communities in northern Georgia for Georgia DNR biodiversity databases. Report to Georgia Department of Natural Resources, Social Circle, GA.
- Southeastern Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Durham, NC.