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A1383 Rhynchospora careyana - Rhynchospora inundata Pondshore Marsh Alliance

Type Concept Sentence: These are seasonally flooded depression marshes of the Southeastern Coastal Plain dominated by graminoid plants such as Rhynchospora inundata and Rhynchospora careyana.

Common (Translated Scientific) Name: Broad-fruit Horned Beaksedge - Narrow-fruit Horned Beaksedge Pondshore Marsh Alliance

Colloquial Name: Southeastern Coastal Plain Pondshore Marsh

Hierarchy Level:  Alliance

Type Concept: These are seasonally flooded depression marshes of the Southeastern Coastal Plain dominated by graminoid plants such as Rhynchospora inundata and Rhynchospora careyana. Other herb species may include the graminoids Andropogon capillipes, Fuirena sp., Lachnanthes caroliana, Panicum hemitomon, Panicum verrucosum, Rhynchospora cephalantha, Rhynchospora filifolia, Xyris fimbriata, Xyris sp., and the perennial forbs Lycopodiella appressa, Pontederia cordata, Solidago latissimifolia, and Triadenum virginicum. Floating aquatic plants such as Nymphaea odorata and Nymphoides aquatica may be present. Woody plants, present at low cover, may include needle-leaved shrubs such as Hypericum brachyphyllum, Hypericum tenuifolium, Hypericum fasciculatum, and needle-leaved trees such as Pinus elliottii.

Diagnostic Characteristics: Seasonally flooded marshes in coastal plain wet depressions, not including limesinks. Vegetation is dominated by graminoid plants such as Rhynchospora inundata and Rhynchospora careyana.

Rationale for Nominal Species or Physiognomic Features: No Data Available

Classification Comments: No Data Available

Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: Vegetation is dominated by graminoid plants such as Rhynchospora inundata and Rhynchospora careyana.

Floristics: A stand found on the Ocala National Forest (in central Florida) is dominated by the graminoid Rhynchospora inundata, with Andropogon capillipes, Fuirena sp., Lachnanthes caroliana, Panicum hemitomon, Panicum verrucosum, Rhynchospora cephalantha, Rhynchospora filifolia, Xyris fimbriata, Xyris sp., and with the forbs Eupatorium leptophyllum, Lycopodiella appressa, Pontederia cordata, Solidago latissimifolia, and Triadenum virginicum. One very rare association that occurs in South Carolina is dominated by the graminoids Rhynchospora inundata and Rhynchospora careyana with Eriocaulon decangulare var. decangulare, Panicum virgatum var. virgatum (= Panicum virgatum var. cubense), and Muhlenbergia expansa. Floating aquatic plants such as Nymphaea odorata and Nymphoides aquatica may be present. Woody plants, present at low cover, may include needle-leaved shrubs such as Hypericum brachyphyllum, and seedlings of the needle-leaved tree Pinus elliottii.

Dynamics:  The vegetation is influenced by periodic fire and by flooding.
Environmental Description:  In coastal plain wet depressions, not including limesinks.
Geographic Range: This alliance is found in the Southeastern Coastal Plain from North Carolina to Florida and west to southern Mississippi, with disjunct occurrences in Delaware and Tennessee.

Nations: US

States/Provinces:  AL, DE, FL, GA, LA?, MS, NC, SC, TN


Confidence Level: Low

Confidence Level Comments: No Data Available
Grank: GNR

Greasons: No Data Available
Type Name Database Code Classification Code
Class 2 Shrub & Herb Vegetation Class C02 2
Subclass 2.C Shrub & Herb Wetland Subclass S44 2.C
Formation 2.C.4 Temperate to Polar Freshwater Marsh, Wet Meadow & Shrubland Formation F013 2.C.4
Division 2.C.4.Ne Atlantic & Gulf Coastal Marsh, Wet Meadow & Shrubland Division D322 2.C.4.Ne
Macrogroup 2.C.4.Ne.2 Beaksedge species - Spikerush species - Panicgrass species Atlantic & Gulf Coastal Plain Wet Prairie & Marsh Macrogroup M067 2.C.4.Ne.2
Group 2.C.4.Ne.2.g Beaksedge species - Spikerush species - Yellow-eyed-grass species Pondshore & Wet Prairie Group G915 2.C.4.Ne.2.g
Alliance A1383 Broad-fruit Horned Beaksedge - Narrow-fruit Horned Beaksedge Pondshore Marsh Alliance A1383 2.C.4.Ne.2.g
Association CEGL003869 Peelbark St. John''s-wort / (Chapman''s Beaksedge, Harper''s Beaksedge) Wet Shrubland CEGL003869 2.C.4.Ne.2.g
Association CEGL003954 Atlantic St. John''s-wort / Pineland Three-awn Wet Dwarf-shrubland CEGL003954 2.C.4.Ne.2.g
Association CEGL004047 Southern Cutgrass - (Warty Panicgrass, Netted Nutrush) Marsh CEGL004047 2.C.4.Ne.2.g
Association CEGL004132 (Broad-fruit Horned Beaksedge, Narrow-fruit Horned Beaksedge) Marsh CEGL004132 2.C.4.Ne.2.g
Association CEGL004384 Toothed Peatmoss Peat Marsh CEGL004384 2.C.4.Ne.2.g
Association CEGL004463 White Beaksedge Marsh CEGL004463 2.C.4.Ne.2.g
Association CEGL004475 Virginia Chainfern / Toothed Peatmoss Marsh CEGL004475 2.C.4.Ne.2.g
Association CEGL004509 Narrow-fruit Horned Beaksedge - Ten-angle Pipewort - Switchgrass - Cutover Muhly Marsh CEGL004509 2.C.4.Ne.2.g
Association CEGL004748 Small-fruit Spikerush - Lesser Creeping Rush - Short-bristle Horned Beaksedge - (Axil-flower, Mermaidweed species) Marsh CEGL004748 2.C.4.Ne.2.g
Association CEGL004752 Plumegrass species - Warty Panicgrass - (Meadowbeauty species, Rose-gentian species) Marsh CEGL004752 2.C.4.Ne.2.g
Association CEGL004769 American Bur-reed - Sugarcane Plumegrass Marsh CEGL004769 2.C.4.Ne.2.g
Association CEGL007718 Southern Peatland Sedge - Fringed Yellow-eyed-grass - Carolina Redroot Marsh CEGL007718 2.C.4.Ne.2.g
Concept Lineage: Based on A.1383, but with many associations brought in from other old alliances. (pasted in from A.1383, with edits in track changes)

Predecessors: No Data Available

Obsolete Names: No Data Available

Obsolete Parents: No Data Available
Synonomy: No Data Available
Concept Author(s): A.S. Weakley, in Faber-Langendoen et al. (2013)

Author of Description: C. Nordman

Acknowledgements: No Data Available

Version Date: 01-08-14
  • 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. 2013-2019b. Screening alliances for induction into the U.S. National Vegetation Classification: Part 1 - Alliance concept review. NatureServe, Arlington, VA.
  • Nelson, J. B. 1986. The natural communities of South Carolina: Initial classification and description. South Carolina Wildlife and Marine Resources Department, Division of Wildlife and Freshwater Fisheries, Columbia, SC. 55 pp.
  • Schafale, M. P., and A. S. Weakley. 1990. Classification of the natural communities of North Carolina. Third approximation. North Carolina Department of Environment, Health, and Natural Resources, Division of Parks and Recreation, Natural Heritage Program, Raleigh. 325 pp.