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Fraxinus pennsylvanica / Leersia lenticularis - Carex lupulina Floodplain Forest
Translated Name: Green Ash / Catchfly Grass - Hop Sedge Floodplain Forest
Common Name: Atlantic Coastal Plain Green Ash Slough Forest
Unique Identifier: CEGL007728
Classification Approach: International Vegetation Classification (IVC)
Summary: This forest occurs on somewhat poorly drained to poorly drained silty clay loam soils in temporarily flooded sloughs in the Atlantic Coastal Plain. The mostly closed to closed canopy of this community is dominated by Fraxinus pennsylvanica. Other typical canopy species include Ulmus americana, Acer negundo, and Carya aquatica. The well-developed subcanopy may contain the same species as the canopy; additional species in this stratum include Planera aquatica, Celtis laevigata, Ilex decidua, Ulmus alata, Crataegus phaenopyrum, and Diospyros virginiana. The single occurrence on which this description is based had no shrub cover. The herbaceous layer is typically of moderate density and dominated by Leersia lenticularis, Boehmeria cylindrica, and Carex lupulina with Saururus cernuus and Polygonum setaceum. The vine coverage is moderate, and species present include Smilax tamnoides (= Smilax hispida), Vitis rotundifolia, Campsis radicans, Toxicodendron radicans, Menispermum canadense, and Ampelopsis arborea. This forest currently is known only from the Mid-Atlantic Coastal Plain of South Carolina.



Classification

Classification Confidence: Low - Poorly Documented
Classification Comments: Global distribution needs assessment. This forest type was described based on 1998 data from the Congaree Swamp National Monument.

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.Nb - Southeastern North American Flooded & Swamp Forest
Macrogroup Southern Coastal Plain Floodplain Forest
Group Southern Ash - Elm - Willow Floodplain Forest
Alliance Coastal Plain Sycamore - Green Ash - Elm Floodplain Forest

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



Related Concepts from Other Classifications


Ecological Systems Placement

Ecological Systems Placement
Ecological System Unique ID Ecological System Name
CES203.066 Southern Atlantic Coastal Plain Large River Floodplain Forest


NatureServe Conservation Status
Global Status: G2G3 (08Jun1998)
Rounded Global Status: G2 - Imperiled

Distribution
Color legend for Distribution Map
United States Distribution: SC
Global Distribution: United States
Global Range: This forest currently is known only from the Mid-Atlantic Coastal Plain of South Carolina.

U.S. Forest Service Ecoregions
Domain Name: Humid Temperate Domain
Division Name: Subtropical Division
Province Name: Outer Coastal Plain Mixed Forest Province
Province Code: 232 Occurrence Status: Confident or certain
Section Name: Coastal Plains and Flatwoods, Lower Section
Section Code: 232B Occurrence Status: Confident or certain


Vegetation

Vegetation Summary: The mostly closed to closed canopy of this community is dominated by Fraxinus pennsylvanica. Other typical canopy species include Ulmus americana, Acer negundo, and Carya aquatica. The well-developed subcanopy may contain the same species as the canopy; additional species in this stratum include Planera aquatica, Celtis laevigata, Ilex decidua, Ulmus alata, Crataegus phaenopyrum, and Diospyros virginiana. The single occurrence on which this description is based had no shrub cover. The herbaceous layer is typically of moderate density and dominated by Leersia lenticularis, Boehmeria cylindrica, and Carex lupulina with Saururus cernuus and Polygonum setaceum. The vine coverage is moderate, and species present include Smilax tamnoides (= Smilax hispida), Vitis rotundifolia, Campsis radicans, Toxicodendron radicans, Menispermum canadense, and Ampelopsis arborea.


Environmental Setting

Wetland Indicator: Y
Environmental Summary: This forest occurs on somewhat poorly drained to poorly drained silty clay loam soils in temporarily flooded sloughs.


Dynamic Processes


Plot Sampling & Classification Analysis

Plots stored in VegBank


Authors/Contributors
Concept Author(s): S. Landaal
Element Description Edition Date: 01May1998
Element Description Author(s): S. Landaal
NatureServe Conservation Status Factors Edition Date: 08Jun1998

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


References
  • Peet, R. K., T. R. Wentworth, M. P. Schafale, and A.S. Weakley. No date. Unpublished data of the North Carolina Vegetation Survey. University of North Carolina, Chapel Hill.

  • Southeastern Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Durham, NC.

  • TNC [The Nature Conservancy]. [1998]b. Classification of the vegetation of Congaree Swamp National Monument. Report to BRD-NPS Vegetation Mapping Program. The Nature Conservancy, Southern Conservation Science, Chapel Hill, NC. 67 pp.


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