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A1685 Carex scabrata - Chrysosplenium americanum Seep Alliance
Type Concept Sentence: This alliance accommodates small seepages with scattered cover of Carex scabrata and small forbs, including Chrysosplenium americanum, Cardamine clematitis, Circaea alpina, and usually also with the moss Rhizomnium appalachianum. Vegetation in this alliance is normally over-shaded by trees rooted in adjacent (non-wetland) communities. The alliance is distributed primarily in the Appalachian Mountains from New Hampshire and Vermont south to West Virginia, and possibly in adjacent Canada.
Common (Translated Scientific) Name: Eastern Rough Sedge - Golden-saxifrage Seep Alliance
Colloquial Name: Central Appalachian-Northeast Circumneutral Seep
Hierarchy Level: Alliance
Type Concept: This alliance accommodates small herbaceous seepages with scattered cover of Carex scabrata and small forbs, including Chrysosplenium americanum, Cardamine clematitis, Circaea alpina, and usually also with the moss Rhizomnium appalachianum. Vegetation in this alliance is normally over-shaded by trees rooted in adjacent (non-wetland) communities. The spatial extent of this alliance is small, with individual occurrences normally much less than a hectare in size. Despite its small spatial scale, this alliance is an important component of the diversity of the landscapes in which it occurs. The alliance is distributed primarily in the Appalachian Mountains from New Hampshire and Vermont south to West Virginia, and possibly in adjacent Canada.
Diagnostic Characteristics: These are small Central and Northern Appalachian seepages with Chrysosplenium americanum as a characteristic forb.
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: Chrysosplenium americanum as a species ranges south to the most northern counties of Alabama, Georgia, and South Carolina, but these are very small-scale occurrences, and this vegetation is not recognized in the Southern Appalachians.
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: Vegetation in this alliance is normally over-shaded by trees rooted in adjacent (non-wetland) communities. The spatial extent of this alliance is small, with individual occurrences normally much less than a hectare in size.
Floristics: Examples are dominated by of Carex scabrata and small forbs, including Chrysosplenium americanum, Cardamine clematitis, Circaea alpina, and usually also with the moss Rhizomnium appalachianum.
Dynamics: No Data Available
Environmental Description: This alliance consists of small seepages in the Appalachian Mountains with scattered cover of small forbs.
Geographic Range: The alliance is distributed primarily in the Appalachian Mountains from New Hampshire and Vermont south to West Virginia. It is possibly found in adjacent Canada.
Nations: CA?,US
States/Provinces: CT, DE, MA, MD, ME, NH, NJ, NY, PA, RI, VA, VT, WV
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.899162
Confidence Level: Moderate
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.Nd Eastern North American Temperate Freshwater Marsh, Wet Meadow & Shrubland Division | D323 | 2.C.4.Nd |
| Macrogroup | 2.C.4.Nd.1 Shrubby-cinquefoil - Canadian Burnet / Inland Sedge Seep Macrogroup | M061 | 2.C.4.Nd.1 |
| Group | 2.C.4.Nd.1.c Tawny Cottongrass - Jewelweed species - Skunk-cabbage Seep Group | G189 | 2.C.4.Nd.1.c |
| Alliance | A1685 Eastern Rough Sedge - Golden-saxifrage Seep Alliance | A1685 | 2.C.4.Nd.1.c |
| Association | CEGL006193 American Golden-saxifrage Seepage Meadow | CEGL006193 | 2.C.4.Nd.1.c |
| Association | CEGL006567 Skunk-cabbage - Orange Jewelweed Seepage Meadow | CEGL006567 | 2.C.4.Nd.1.c |
| Association | CEGL006597 Eastern Rough Sedge - Marsh Blue Violet / Toothed Leafy Moss Seepage Meadow | CEGL006597 | 2.C.4.Nd.1.c |
Concept Lineage: This alliance accommodates all the members of the old Chrysosplenium americanum Saturated Herbaceous Alliance (A.1685), but with different nominals.
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: No Data Available
- 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.
- 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.
- Smith, T. L. 1991. Natural ecological communities of Pennsylvania. First revision. Unpublished report. Pennsylvania Science Office of The Nature Conservancy, Middletown, PA. 111 pp.