Invalid Unit Specified
CEGL006554 Lysimachia ciliata - Apocynum cannabinum Sparse Riverbed Vegetation

The U.S. National
Vegetation Classification
Type Concept Sentence:
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Common (Translated Scientific) Name: Fringed Loosestrife - Indian-hemp Sparse Riverbed Vegetation
Colloquial Name: Loosestrife - Indian-hemp Scoured Rivershore
Hierarchy Level: Association
Type Concept: Island heads, bars, spits, low terraces, and riverbanks are all home to this broadly defined community. The underlying substrate also varies greatly, although it is often cobbles and sand, with thin deposits of silt, muck or organic matter. Species composition also varies greatly from site to site. The unifying factor that bridges the differences in environmental factors and species composition is the frequent scour that these sites experience. This community establishes in areas of the active channel that are underwater for the majority of the year and are exposed only at low water or in drought years. Therefore, these areas are subjected to high water velocities, floods and ice-scour more frequently than other herbaceous communities or shrublands (with the exception of emergent beds). The constant scour removes established vegetation and maintains or creates exposed sediments, cobbles or bedrock. New seeds and plant propagules are constantly being dispersed to these areas by water, air and animals. This causes a continual flux in species composition that is characteristic of this community. Typical species are a mix of annuals and perennials, including Lysimachia ciliata, Lysimachia vulgaris, Lysimachia nummularia, Senecio spp., Eupatorium spp., other Asteraceae spp., Convolvulus spp., Phyla lanceolata, Justicia americana, Cyperus esculentus, Boehmeria cylindrica, Polygonum spp., Apocynum cannabinum, Betula nigra, and Platanus occidentalis. This community is defined mainly by its setting and disturbance regime.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features:
Classification Comments: No Data Available
Similar NVC Types:
Physiognomy and Structure: No Data Available
Floristics: Typical species are a mix of annuals and perennials including Lysimachia ciliata, Lysimachia vulgaris, Lysimachia nummularia, Senecio sp., Asteraceae spp., Eupatorium spp., Convolvulus spp., Phyla lanceolata, Justicia americana, Cyperus esculentus, Boehmeria cylindrica, Polygonum spp., Apocynum cannabinum, Betula nigra, Platanus occidentalis. This community is defined mainly by its setting and disturbance regime.
Dynamics: No Data Available
Environmental Description: Island heads, bars, spits, low terraces, and riverbanks are all home to this broadly defined community. The underlying substrate also varies greatly, although it is often cobbles and sand, with thin deposits of silt, muck or organic matter. Species composition also varies greatly from site to site. The unifying factor that bridges the differences in environmental factors and species composition is the frequent scour that these sites experience. This community establishes in areas of the active channel that are underwater for the majority of the year and are exposed only at low water or in drought years. Therefore, these areas are subjected to high water velocities, floods and ice-scour more frequently than other herbaceous communities or shrublands (with the exception of emergent beds). The constant scour removes established vegetation and maintains or creates exposed sediments, cobbles or bedrock. New seeds and plant propagules are constantly being dispersed to these areas by water, air and animals. This causes a continual flux in species composition that is characteristic of this community.
Geographic Range: The full distribution of this type is not well-known. It is currently documented only from Pennsylvania and New Jersey but believed to range further. Lack of samples and inherent variability are challenges.
Nations: US
States/Provinces: NJ, NY, PA, WV
US Forest Service Ecoregions (1994/1995)
Domain Name:
Division Name:
Province Name: Laurentian Mixed Forest Province
Province Code: 212    Occurrence Status: Confident or certain
Section Name: Northern Ridge and Valley Section
Section Code: M221A     Occurrence Status: Confident or certain
Omernik Ecoregions:
Confidence Level: Low
Confidence Level Comments:
Grank: GNR
Greasons:
Concept Lineage:
Predecessors:
Obsolete Names:
Obsolete Parents:
Synonomy: < Riverine Scour Community (TNC and WPC 2004)
Concept Author(s): Eastern Ecology Group
Author of Description: E. Largay and S.C. Gawler
Acknowledgements:
Version Date: 22Jun2006
References:
  • Eastern Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boston, MA.
  • Edinger, G. J., D. J. Evans, S. Gebauer, T. G. Howard, D. M. Hunt, and A. M. Olivero, editors. 2002. Ecological communities of New York state. Second edition. A revised and expanded edition of Carol Reschke's ecological communities of New York state. (Draft for review). New York Natural Heritage Program, New York State Department of Environmental Conservation, Albany, NY.
  • Edinger, G. J., D. J. Evans, S. Gebauer, T. G. Howard, D. M. Hunt, and A. M. Olivero, editors. 2014. Ecological communities of New York state. Second edition. A revised and expanded edition of Carol Reschke's ecological communities of New York state. New York Natural Heritage Program, New York State Department of Environmental Conservation, Albany, NY.
  • Fike, J. 1999. Terrestrial and palustrine plant communities of Pennsylvania. Pennsylvania Natural Diversity Inventory. Pennsylvania Department of Conservation and Recreation, Bureau of Forestry, Harrisburg, PA. 86 pp.
  • Perles, S. J., G. S. Podniesinski, E. A. Zimmerman, W. A. Millinor, and L. A. Sneddon. 2006e. Vegetation classification and mapping at Johnstown Flood National Memorial. Technical Report NPS/NER/NRTR--2006/034. National Park Service, Philadelphia, PA. 144 pp.
  • Perles, S. J., G. S. Podniesinski, E. Eastman, L. A. Sneddon, and S. C. Gawler. 2007. Classification and mapping of vegetation and fire fuel models at Delaware Water Gap National Recreation Area. Technical Report NPS/NER/NRTR--2007/076. National Park Service, Philadelphia, PA. 2 volumes.
  • Perles, S. J., G. S. Podniesinski, M. Furedi, B. A. Eichelberger, A. Feldmann, G. Edinger, E. Eastman, and L. A. Sneddon. 2008. Vegetation classification and mapping at Upper Delaware Scenic and Recreational River. Technical Report NPS/NER/NRTR--2008/133. National Park Service, Philadelphia, PA. 370 pp.
  • TNC and WPC [The Nature Conservancy and Western Pennsylvania Conservancy]. 2004. Classification, assessment, and protection of non-forested floodplain wetlands of the Susquehanna drainage. Pennsylvania Natural Heritage Program, Harrisburg, PA. 128 pp.