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A3401 Eleocharis elongata - Eleocharis equisetoides - Fuirena scirpoidea Interdunal Marsh Alliance

The U.S. National
Vegetation Classification
Type Concept Sentence: This diverse alliance of graminoid marsh vegetation is dominated by graminoid species, including Andropogon brachystachyus, Carex hyalinolepis, Cladium mariscus ssp. jamaicense, Eleocharis elongata, Eleocharis equisetoides, Eleocharis quadrangulata, Fuirena scirpoidea, Leptochloa fusca ssp. fascicularis, Muhlenbergia filipes, Panicum hemitomon, Panicum tenerum, Paspalum vaginatum, and Rhynchospora spp. It occurs in southern coastal interdunal swales.
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Common (Translated Scientific) Name: Slim Spikerush - Horsetail Spikerush - Southern Umbrella-sedge Interdunal Marsh Alliance
Colloquial Name: Southern Interdunal Spikerush Marsh
Hierarchy Level: Alliance
Type Concept: Dominant species in this diverse alliance of graminoid marsh vegetation include Andropogon brachystachyus, Carex hyalinolepis, Cladium mariscus ssp. jamaicense, Eleocharis elongata, Eleocharis equisetoides, Eleocharis quadrangulata, Fuirena scirpoidea, Leptochloa fusca ssp. fascicularis, Muhlenbergia filipes, Panicum hemitomon, Panicum tenerum, Paspalum vaginatum, and Rhynchospora spp. This alliance occurs in southern coastal interdunal swales. These sites are not subject to regular tides, but may be exposed to saltwater from storm surges and seasonal high tides.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features:
Classification Comments: This vegetation does not include coastal marshes dominated by Fimbristylis castanea, Schoenoplectus pungens, Spartina bakeri, or Typha domingensis which are included in other alliances of southern coastal interdunal swale vegetation.
Similar NVC Types:
Fimbristylis castanea - Schoenoplectus pungens Coastal Marsh Alliance, note: is dominated by Fimbristylis castanea and Schoenoplectus pungens.
Physiognomy and Structure: The vegetation is dominated by graminoid herb species.
Floristics: This diverse alliance of marsh vegetation is dominated by various graminoids such as ~Andropogon brachystachyus, Carex hyalinolepis, Cladium mariscus ssp. jamaicense, Eleocharis elongata, Eleocharis equisetoides, Eleocharis quadrangulata, Fuirena scirpoidea, Leptochloa fusca ssp. fascicularis, Muhlenbergia filipes, Panicum hemitomon, Panicum tenerum, Paspalum vaginatum, and Rhynchospora spp. This vegetation does not include coastal marshes dominated by Fimbristylis castanea, Schoenoplectus pungens, Spartina bakeri, or Typha domingensis.
Dynamics: This vegetation occurs in southern coastal interdunal swales. These sites are not subject to regular tides, but may be exposed to saltwater from storm surges and seasonal high tides. High wind and storm surges can alter the position of dunes and swales. These are dynamic landforms which change as part of natural coastal processes.
Environmental Description: The vegetation of this alliance occurs in southern coastal interdune swales.
Geographic Range: This alliance occurs along the Atlantic and Gulf coasts, from Virginia to Florida, Alabama and Texas.
Nations: US
States/Provinces: AL, FL, GA, LA?, MS?, NC, SC, TX, VA
US Forest Service Ecoregions (1994/1995)
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Confidence Level: Low - Poorly Documented
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Grank: GNR
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Synonomy: < Coastal Interdunal Swale (FNAI 2010a)
Concept Author(s): C. Nordman, in Faber-Langendoen et al. (2013)
Author of Description: C. Nordman
Acknowledgements:
Version Date: 08Jan2014
References:
  • Faber-Langendoen, D., J. Drake, M. Hall, G. Kittel, S. Menard, C. Nordman, M. Pyne, M. Reid, M. Russo, K. Schulz, L. Sneddon, K. Snow, and J. Teague. 2013-2017b. Screening alliances for induction into the U.S. National Vegetation Classification: Part 1 - Alliance concept review. NatureServe, Arlington, VA.
  • FNAI [Florida Natural Areas Inventory]. 2010a. Guide to the natural communities of Florida: 2010 edition. Florida Natural Areas Inventory, Tallahassee, FL.