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Campanula rotundifolia - Packera paupercula - (Aquilegia canadensis) Riverscour Sparse Vegetation
Translated Name: Bluebell Bellflower - Balsam Groundsel - (Red Columbine) Riverscour Sparse Vegetation
Common Name: Boreal Alkaline Shoreline Outcrop
Unique Identifier: CEGL006532
Classification Approach: International Vegetation Classification (IVC)
Summary: This sparsely vegetated community is found on outcrops of circumneutral or calcareous rock along rivershores in the northern Appalachian Mountains and perhaps adjacent Canada. Substrates are usually dolomite, limestone, or slate. Most are flooded annually at high water; this helps to maintain open conditions and also provides silt that accumulates in the rock crevices. The annual disturbance pattern of flooding and ice-scour restricts the vegetation to tough crevice-rooting herbs and low shrubs. Total vegetation cover is often less than 20%. Floristic composition can vary considerably, but characteristic species include Campanula rotundifolia, Aquilegia canadensis, Packera paupercula, Allium schoenoprasum var. sibiricum, Carex eburnea, Carex granularis, Erigeron hyssopifolius, Houstonia longifolia, Viola novae-angliae, Lobelia kalmii, Trisetum spicatum, and Dasiphora fruticosa ssp. floribunda. Associated species that are also common in other habitats include Thalictrum pubescens, Solidago bicolor, Antennaria spp., Ionactis linariifolius, Deschampsia cespitosa, Toxicodendron rydbergii, Vaccinium angustifolium, Vaccinium cespitosum, Cornus amomum, and Cornus sericea. Grimmia spp., Tortella tortuosa, and Tortula ruralis are characteristic mosses.



Classification

Classification Confidence: Low
Classification Comments: This association encompasses a gradient of substrate pH, from calcareous limestones in upstate New York to more circumneutral slates in New Hampshire and Maine. Floristic differences have not been carefully examined.

Vegetation Hierarchy
Class 2 - Shrub & Herb Vegetation
Subclass 2.C - Shrub & Herb Wetland
Formation 2.C.4 - Temperate to Polar Freshwater Marsh, Wet Meadow & Shrubland
Division 2.C.4.Nd - Eastern North American Temperate & Boreal Freshwater Marsh, Wet Meadow & Shrubland
Macrogroup Eastern North American Riverscour Vegetation
Group Laurentian-Acadian Riverscour Vegetation
Alliance Gray Alder / Shrubby-cinquefoil Riverscour

This is the revised vegetation hierarchy. For more information see Classification Sources and usnvc.org.

Similar Associations
Unique Identifier Name
CEGL002506 Dasiphora fruticosa / Clinopodium arkansanum - Argentina anserina - Primula mistassinica Lakeshore Sparse Vegetation
CEGL006284 Andropogon gerardii - Campanula rotundifolia - Solidago simplex Riverscour Sparse Vegetation
CEGL006531 Vaccinium spp. / Danthonia spicata - Solidago puberula Riverscour Sparse Vegetation



Related Concepts from Other Classifications

Related Subnational Community Units
These data are subject to substantial ongoing revision and may be out of date for some states.
In the U.S., contact the state Heritage Program for the most complete and up-to-date information at: http://www.natureserve.org/natureserve-network.
Information from programs in other jurisdictions will be posted when they are made available.
Subnation Concept Name Relationship to Standard Confidence Reference
Maine Bluebell - balsam ragwort shoreline outcrop Broader   Gawler 2002
New Hampshire Circumneutral riverbank outcrop Equivalent   Sperduto 2000
New York Calcareous shoreline outcrop Broader   Edinger et al. 2002
Vermont Calcareous Riverside Outcrop Equivalent   Thompson and Sorenson 2005



Ecological Systems Placement

Ecological Systems Placement
Ecological System Unique ID Ecological System Name
CES103.589 Boreal Ice-Scour Rivershore


NatureServe Conservation Status
Global Status: GNR (06Jul1999)
Rounded Global Status: GNR - Not Yet Ranked

Distribution
Color legend for Distribution Map
United States Distribution: ME, NH, NY, VT
Canadian Province Distribution: QCpotentially occurs
Global Distribution: Canadapotentially occurs, United States
Global Range: This community is found on outcrops along rivershores in the northern Appalachian Mountains and perhaps adjacent Canada.

U.S. Forest Service Ecoregions
Domain Name: Humid Temperate Domain
Division Name: Warm Continental Division
Province Name: Laurentian Mixed Forest Province
Province Code: 212 Occurrence Status: Confident or certain
Section Name: Aroostook Hills and Lowlands Section
Section Code: 212A Occurrence Status: Confident or certain
Section Name: Maine-New Brunswick Foothills and Lowlands Section
Section Code: 212B Occurrence Status: Confident or certain
Section Name: Central Maine Coastal and Embayment Section
Section Code: 212D Occurrence Status: Confident or certain
Division Name: Hot Continental Division
Province Name: Eastern Broadleaf Forest (Oceanic) Province
Province Code: 221 Occurrence Status: Confident or certain
Section Name: Hudson Valley Section
Section Code: 221B Occurrence Status: Confident or certain
Division Name: Warm Continental Regime Mountains
Province Name: Adirondack-New England Mixed Forest - Coniferous Forest - Alpine Meadow Province
Province Code: M212 Occurrence Status: Confident or certain
Section Name: White Mountain Section
Section Code: M212A Occurrence Status: Confident or certain
Section Name: Adirondack Mountain Section
Section Code: M212D Occurrence Status: Confident or certain


Vegetation

Vegetation Summary: The annual disturbance pattern of flooding and ice-scour restricts the vegetation to tough crevice-rooting herbs and low shrubs. Total vegetation cover is often less than 20%. Characteristic species include Campanula rotundifolia, Aquilegia canadensis, Packera paupercula (= Senecio pauperculus), Allium schoenoprasum var. sibiricum, Carex eburnea, Carex granularis, Erigeron hyssopifolius, Houstonia longifolia (= Hedyotis longifolia), Viola novae-angliae, Lobelia kalmii, Trisetum spicatum, and Dasiphora fruticosa ssp. floribunda. Associated species that are also common in other habitats include Thalictrum pubescens, Solidago bicolor, Antennaria spp., Ionactis linariifolius, Deschampsia cespitosa, Toxicodendron rydbergii, Vaccinium angustifolium, Vaccinium cespitosum, Cornus amomum, and Cornus sericea. Grimmia spp., Tortella tortuosa, and Tortula ruralis are characteristic mosses.

Vegetation Composition (incomplete)
Species Name Rounded Global Status Growth Form Stratum Charact-
eristic
Dominant Constant
Cover Class %
Con-
stancy
%
Aquilegia canadensis GNR Flowering forb Herb (field)    
 
 
Campanula rotundifolia GNR Flowering forb Herb (field)    
 
 
Packera paupercula GNR Flowering forb Herb (field)    
 
 


Environmental Setting

Wetland Indicator: Y
Environmental Summary: This sparsely vegetated community is found on outcrops of circumneutral or calcareous rock along rivershores in the northern Appalachian Mountains and perhaps adjacent Canada. Substrates are usually dolomite, limestone, or slate. Most are flooded annually at high water; this helps to maintain open conditions and also provides silt that accumulates in the rock crevices.


Dynamic Processes


Plot Sampling & Classification Analysis

Plots stored in VegBank


Authors/Contributors
Concept Author(s): Northern Appalachian Planning Team
Element Description Edition Date: 28Jan2003
Element Description Author(s): S.C. Gawler

Ecological data developed by NatureServe and its network of natural heritage programs (see Local Programs) and other contributors and cooperators (see Sources).


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. 2014a. 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.

  • Gawler, S. C. 2002. Natural landscapes of Maine: A guide to vegetated natural communities and ecosystems. Maine Natural Areas Program, Department of Conservation, Augusta, ME.

  • Gawler, S. C., and A. Cutko. 2010. Natural landscapes of Maine: A classification of vegetated natural communities and ecosystems. Maine Natural Areas Program, Department of Conservation, Augusta.

  • Nichols, W. F., J. M. Hoy, and D. D. Sperduto. 2001. Open riparian communities and riparian complexes in New Hampshire. New Hampshire Natural Heritage Inventory, DRED Division of Forests and Lands, Concord, NH. 82 pp. plus appendices.

  • 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.

  • Thompson, E. H., and E. R. Sorenson. 2005. Wetland, woodland, wildland: A guide to the natural communities of Vermont. The Nature Conservancy and the Vermont Department of Fish and Wildlife. University Press of New England, Hanover, NH. 456 pp.


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