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CEGL006364 Chamaecyparis thyoides - Acer rubrum / Lycopus spp. Swamp Forest
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Atlantic White-cedar - Red Maple / Water-horehound species Swamp Forest
Colloquial Name: Seasonally Flooded Atlantic White-cedar Swamp Forest
Hierarchy Level: Association
Type Concept: This seasonally flooded Atlantic white-cedar swamp occurs along streamsides, pond borders, and wettest portions of swamp basins in New England and possibly elsewhere. Seasonal overbank flow makes these swamps more nutrient-rich than other Atlantic white cedar swamps. The canopy is generally codominated by Chamaecyparis thyoides and Acer rubrum. The shrub layer is variable and often includes Vaccinium corymbosum, Clethra alnifolia, Ilex verticillata, Lyonia ligustrina, and occasionally Frangula alnus, Alnus incana ssp. rugosa, and Rhododendron viscosum. The herbaceous layer is diverse and robust including Lycopus uniflorus, Lycopus virginicus, Lycopus americanus, Osmunda regalis, Bidens spp., Thelypteris palustris, Carex stricta, and Triadenum virginicum. Additional species occurring less frequently include Peltandra virginica, Sagittaria latifolia, Sparganium spp., Leersia oryzoides, Boehmeria cylindrica, Lysimachia terrestris, Carex folliculata, Impatiens capensis, and Typha latifolia. The key diagnostic characteristic of this association is the robust and diverse herb layer of these Atlantic white-cedar swamps.
Diagnostic Characteristics: No Data Available
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: No Data Available
Floristics: The canopy is generally codominated by Chamaecyparis thyoides and Acer rubrum. The shrub layer is variable and often includes Vaccinium corymbosum, Clethra alnifolia, Ilex verticillata, Lyonia ligustrina, and occasionally Frangula alnus (= Rhamnus frangula), Alnus incana ssp. rugosa, and Rhododendron viscosum. The herbaceous layer is diverse and robust including Lycopus uniflorus, Lycopus virginicus, Lycopus americanus, Osmunda regalis, Bidens spp., Thelypteris palustris, Carex stricta, and Triadenum virginicum. Additional species occurring less frequently include Peltandra virginica, Sagittaria latifolia, Sparganium spp., Leersia oryzoides, Boehmeria cylindrica, Lysimachia terrestris, Carex folliculata, Impatiens capensis, and Typha latifolia.
Dynamics: No Data Available
Environmental Description: Alluvial Atlantic white-cedar swamp along streamsides, pond borders, and wettest portions of swamp basins. Peat is approximately 1 m thick over mineral sediments. Standing water generally occurs for at least half of the growing season.
Geographic Range: This association is known from New Hampshire and Massachusetts.
Nations: US
States/Provinces: CT, MA, NH, RI
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.685410
Confidence Level: Moderate
Confidence Level Comments: No Data Available
Grank: GNR
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.Nb Southeastern North American Flooded & Swamp Forest Division | D062 | 1.B.3.Nb |
| Macrogroup | 1.B.3.Nb.3 Sweetbay - Swamp Bay - Pond Pine Swamp Forest Macrogroup | M032 | 1.B.3.Nb.3 |
| Group | 1.B.3.Nb.3.b Atlantic White-cedar - Pitch Pine Swamp Group | G039 | 1.B.3.Nb.3.b |
| Alliance | A3400 Atlantic White-cedar Northern Peat Swamp Forest Alliance | A3400 | 1.B.3.Nb.3.b |
| Association | CEGL006364 Atlantic White-cedar - Red Maple / Water-horehound species Swamp Forest | CEGL006364 | 1.B.3.Nb.3.b |
Concept Lineage: merged
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Chamaecyparis / Lycopus (Type 6) (Sperduto and Crowley 2002b)
? SNE Streambottom forest, Atlantic white cedar association (Rawinski 1984a)
= Seasonally flooded [Atlantic white cedar] type (Motzkin 1991)
? SNE Streambottom forest, Atlantic white cedar association (Rawinski 1984a)
= Seasonally flooded [Atlantic white cedar] type (Motzkin 1991)
- Eastern Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boston, MA.
- Enser, R. W., and J. A. Lundgren. 2006. Natural communities of Rhode Island. A joint project of the Rhode Island Department of Environmental Management Natural Heritage Program and The Nature Conservancy of Rhode Island. Rhode Island Natural History Survey, Kingston. 40 pp. [www.rinhs.org]
- Laderman, A. D. 1989. The ecology of the Atlantic white cedar wetlands: A community profile. USDI Fish and Wildlife Service. Biological Report 85(7.21). 114 pp.
- Metzler, K., and J. Barrett. 2006. The vegetation of Connecticut: A preliminary classification. State Geological and Natural History Survey, Report of Investigations No. 12. Connecticut Natural Diversity Database, Hartford, CT.
- Motzkin, G. 1991. Atlantic white cedar wetlands of Massachusetts. Massachusetts Agricultural Experiment Station, University of Massachusetts. Research Bulletin 731. 53 pp.
- Rawinski, T. 1984a. Natural community description abstract - southern New England calcareous seepage swamp. Unpublished report. The Nature Conservancy, Boston, MA. 6 pp.
- Sneddon, L. A., Zaremba, R. E., and M. Adams. 2010. Vegetation classification and mapping at Cape Cod National Seashore, Massachusetts. Natural Resources Technical Report NPS/NER/NRTR--2010/147. National Park Service, Philadelphia, PA. 481 pp. [http://biology.usgs.gov/npsveg/caco/cacorpt.pdf]
- Sperduto, D. A., and K. F. Crowley. 2002b. Atlantic white cedar in New England: Analysis and proposed classification. New Hampshire Natural Heritage Inventory. DRED Division of Forests & Lands and The Nature Conservancy, Concord, NH.
- Sperduto, D. D., and N. Ritter. 1994. Atlantic cedar wetlands of New Hampshire. Environmental Protection Agency, Boston, MA.
- Sperduto, D. D., and W. F. Nichols. 2004. Natural communities of New Hampshire: A guide and classification. New Hampshire Natural Heritage Bureau, DRED Division of Forests and Lands, Concord. 242 pp.
- Swain, P. C., and J. B. Kearsley. 2014. Classification of the natural communities of Massachusetts. Version 2.0. Natural Heritage & Endangered Species Program, Massachusetts Division of Fisheries and Wildlife. Westborough, MA. [http://www.mass.gov/nhesp/http://www.mass.gov/eea/agencies/dfg/dfw/natural-heritage/natural-communities/classification-of-natural-communities.html]