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CEGL006181 Hibiscus moscheutos - Polygonum punctatum - Peltandra virginica Tidal Marsh

Type Concept Sentence: No Data Available


Common (Translated Scientific) Name: Crimson-eyed Rosemallow - Dotted Smartweed - Green Arrow-arum Tidal Marsh

Colloquial Name: Oligohaline Mixed Forbs Tidal Marsh

Hierarchy Level:  Association

Type Concept: This association is a diverse oligohaline marsh characterized by variable dominance of species found in the Chesapeake and Delaware bays. Species that form locally dominant patches can include Polygonum arifolium, Hibiscus moscheutos, Polygonum punctatum, Peltandra virginica, Leersia oryzoides, Polygonum sagittatum, Mikania scandens, Spartina cynosuroides, and Toxicodendron radicans, among others. All of these species are able to tolerate a broad range of halinity, and the high mean species richness of this type suggests that it is generally restricted to only slightly oligohaline habitats. Typha angustifolia and Spartina cynosuroides often form large dominance patches. Infrequently present are several species that are more specific to oligohaline conditions, including Echinochloa walteri, Kosteletzkya virginica, Pluchea odorata, Rumex verticillatus, Sagittaria lancifolia, and Teucrium canadense. The colonial sedge Carex stricta sometimes forms local dominance patches, characteristically on hummocks raised 20-25 cm above the primary marsh surface.

Diagnostic Characteristics: No Data Available

Rationale for Nominal Species or Physiognomic Features: No Data Available

Classification Comments: In Virginia, occurrences are known from the Mattaponi (New and Gleason marshes), Pamunkey (Sweet Hall, Cousiac, and Cohoke marshes), and Rappahannock (Otterburn Marsh) rivers. In Maryland, an occurrence documented from the Pocomoke River (Cypress Swamp) is currently attributed to this type. In New Jersey, an occurrence is known from Rancocas Creek.

Similar NVC Types: No Data Available
note: No Data Available

Physiognomy and Structure: No Data Available

Floristics: These are diverse oligohaline marshes characterized by variable dominance patterns but generally containing Polygonum arifolium, Hibiscus moscheutos (= ssp. moscheutos), Polygonum punctatum, Peltandra virginica, Leersia oryzoides, Polygonum sagittatum, Mikania scandens, and Toxicodendron radicans. Bidens laevis, Cicuta maculata, Cuscuta sp., Impatiens capensis, Lycopus americanus, and Sagittaria latifolia, and graminoids such as Typha latifolia and Bolboschoenus fluviatilis may also be present at variable cover. Typha angustifolia and Spartina cynosuroides may form extensive dominance patches. All of these species are able to tolerate a broad range of halinity, and the high mean species richness of this type suggests that it is generally restricted to only slightly oligohaline habitats. Infrequently present are several species that are more specific to oligohaline conditions, including Echinochloa walteri, Kosteletzkya virginica, Pluchea odorata, Rumex verticillatus, Sagittaria lancifolia, and Teucrium canadense. Spartina cynosuroides occurs in approximately two-thirds of the representative vegetation sample plots and at times codominates. The colonial sedge Carex stricta often forms local dominance patches, characteristically on hummocks raised 20-25 cm above the primary marsh surface. Such stands also characteristically contain scattered individuals of Rosa palustris or Cephalanthus occidentalis.

Dynamics:  This association forms in oligohaline marshes on the Coastal Plain where gradual elevation gradients allow exaggeration of salinity gradients.

Environmental Description:  Most stands are located near the edge of an extensive marsh but set by the main river channel and often bordered by scattered clumps of shrubs. There is often hummock-and-hollow microtopography.

Geographic Range: This association is currently described from Virginia, Maryland, and New Jersey.

Nations: US

States/Provinces:  DE, MD, NJ, VA




Confidence Level: Moderate

Confidence Level Comments: No Data Available

Grank: G4

Greasons: No Data Available


Concept Lineage: concept covered by CEGL006181

Predecessors: No Data Available

Obsolete Names: No Data Available

Obsolete Parents: No Data Available

Synonomy: ? Hibiscus moscheutos - Polygonum arifolium - Leersia oryzoides - (Carex stricta) Tidal Herbaceous Vegetation (Coulling 2002)
= Hibiscus moscheutos - Polygonum punctatum - Peltandra virginica - (Typha angustifolia) - (Spartina cynosuroides) Herbaceous Vegetation (Coulling 2002)
= Kosteletzkya virginica Mixed Oligohaline Marsh (Walton et al. 2001)
= Oligohaline Mixed Forbs Marsh (Strakosch Walz et al. 2007)

Concept Author(s): P.P. Coulling and S.L. Neid

Author of Description: S.L. Neid and L.A. Sneddon

Acknowledgements: No Data Available

Version Date: 06-04-07

  • Coulling, P. P. 2002. A preliminary classification of tidal marsh, shrub swamp, and hardwood swamp vegetation and assorted non-tidal, chiefly non-maritime, herbaceous wetland communities of the Virginia Coastal Plain. October 2002. Virginia Department of Conservation and Recreation, Division of Natural Heritage. Natural Heritage Technical Report 02-18. 30 pp.
  • Coxe, R. 2009. Guide to Delaware vegetation communities. Spring 2009 edition. State of Delaware, Division of Fish and Wildlife, Delaware Natural Heritage Program, Smyrna.
  • Eastern Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boston, MA.
  • Fleming, G. P., K. D. Patterson, and K. Taverna. 2017. The natural communities of Virginia: A classification of ecological community groups and community types. Third approximation. Version 3.0. Virginia Department of Conservation and Recreation, Division of Natural Heritage, Richmond, VA. [http://www.dcr.virginia.gov/natural-heritage/natural-communities/]
  • Fleming, G. P., K. Taverna, and P. P. Coulling. 2007b. Vegetation classification for the National Capitol Region parks, eastern region. Regional (VA-MD-DC) analysis prepared for NatureServe and USGS-NPS Vegetation Mapping Program, March 2007. Virginia Department of Conservation and Recreation, Division of Natural Heritage, Richmond.
  • Harrison, J. W. 2011. The natural communities of Maryland: 2011 working list of ecological community groups and community types. Unpublished report. Maryland Department of Natural Resources, Wildlife and Heritage Service, Natural Heritage Program, Annapolis. 33 pp.
  • Harrison, J. W., compiler. 2004. Classification of vegetation communities of Maryland: First iteration. A subset of the International Classification of Ecological Communities: Terrestrial Vegetation of the United States, NatureServe. Maryland Natural Heritage Program, Maryland Department of Natural Resources, Annapolis. 243 pp.
  • Harrison, Jason W. Personal communication. State Community Ecologist, Maryland Wildlife and Heritage Division, Department of Natural Resources, Annapolis, MD.
  • New Jersey Department of Environmental Protection. 2001. New Jersey 1995/97 Land Use / Land Cover - Level 3 Modified. Land Use Land Cover (Anderson) Classification System (derived from: A Land Use and Land Cover Classification System for Use with Remote Sensor Data, U.S. Geological Survey Professional Paper 964, 1976: edited by NJDEP, OIRM, BGIA, 1998, 2000, 2001). New Jersey Department of Environmental Protection, Trenton.
  • Patterson, K. D. 2008c. Vegetation classification and mapping at Colonial National Historical Park, Virginia. Technical Report NPS/NER/NRTR--2008/129. National Park Service, Philadelphia, PA. 369 pp.
  • Patterson, K. D. 2008d. Vegetation classification and mapping at George Washington Birthplace National Monument, Virginia. Technical Report NPS/NER/NRTR--2008/099. National Park Service, Philadelphia, PA. 231 pp.
  • Strakosch Walz, K., L. Kelly, K. Anderson, and S. J. Stanford. 2007. The sea level fens, tidal freshwater marshes and tidal brackish marshes of New Jersey. New Jersey Department of Environmental Protection, Division of Parks and Forestry, Office of Natural Lands Management, Natural Heritage Program, Trenton, NJ. 189 pp.
  • Walton, D. P., P. P. Coulling, J. Weber, A. Belden, Jr., and A. C. Chazal. 2001. A plant community classification and natural heritage inventory of the Pamunkey River floodplain. Unpublished report submitted to the U.S. Environmental Protection Agency. Natural Heritage Technical Report 01-19. Virginia Department of Conservation and Recreation, Division of Natural Heritage, Richmond. 200 pp. plus appendices.