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CEGL006409 Onoclea sensibilis - (Adiantum pedatum) - Impatiens capensis - Carex plantaginea Seepage Meadow
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Sensitive Fern - (Northern Maidenhair) - Orange Jewelweed - Plantainleaf Sedge Seepage Meadow
Colloquial Name: Enriched Northern Hardwood Forested Seep
Hierarchy Level: Association
Type Concept: These small seepage wetlands range across northern New England and New York and are expected to be found in adjacent Canada. They occur as pockets or narrow linear patches within northern hardwood forests where seepage waters create saturated and mineral-rich conditions. Streamheads and lower slopes are typical settings, and the ground surface is usually gently sloping. Though generally shaded by the overhanging forest canopy, this association is defined by the herbaceous vegetation which is distinctly different from the herb and shrub layers in the surrounding forest. Shrub cover is generally low, and herb cover is lush (typically in the range of 60-85%). Bryophytes may be present but are often patchy. Herb composition is variable depending on the nutrient status of the soil and seepage water. Ferns, such as Onoclea sensibilis, Athyrium filix-femina, and Matteuccia struthiopteris, may be prominent. Impatiens capensis and Arisaema triphyllum are typical forb species. On the more enriched sites, Adiantum pedatum, Hydrophyllum virginianum, Impatiens pallida, Milium effusum, Carex platyphylla, and/or Carex plantaginea may be present. Other species commonly recorded from this vegetation are Carex scabrata, Carex debilis, Polystichum acrostichoides, Glyceria striata, Solidago caesia, and Ageratina altissima.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: This type is supported by plot data from parks in Vermont and New Hampshire. Similar vegetation has been observed elsewhere in the region but not generally documented as distinct. Attention to these forested seeps could provide data to refine their classification and distribution.
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: Though generally shaded by the overhanging forest canopy, this association is defined by the herbaceous vegetation which is distinctly different from the herb and shrub layers in the surrounding forest. Shrub cover is generally low, and herb cover is lush (typically in the range of 60-85%). Bryophytes may be present but are often patchy. Herb composition is variable depending on the nutrient status of the soil and seepage water. Ferns, such as Onoclea sensibilis, Athyrium filix-femina, and Matteuccia struthiopteris, may be prominent. Impatiens capensis and Arisaema triphyllum are typical forb species. On the more enriched sites, Adiantum pedatum, Hydrophyllum virginianum, Impatiens pallida, Milium effusum, Carex platyphylla, and/or Carex plantaginea may be present. Other species commonly recorded from this vegetation are Carex scabrata, Carex debilis, Polystichum acrostichoides, Glyceria striata, Solidago caesia, and Ageratina altissima (= Eupatorium rugosum).
Dynamics: No Data Available
Environmental Description: These small seepage wetlands occur as pockets or narrow linear patches within northern hardwood forests where seepage waters create saturated and mineral-rich conditions. Streamheads and lower slopes are typical settings, and the ground surface is usually gently sloping.
Geographic Range: This association ranges across northern New England and New York and is expected to occur in adjacent Canada; its extent southward is unknown.
Nations: CA?,US
States/Provinces: ME, NB?, NH, NY?, QC?, VT
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.789560
Confidence Level: Low - Poorly Documented
Confidence Level Comments: No Data Available
Grank: G4?
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 | A4496 <i>Acer spicatum - Sambucus racemosa</i> / Green False Hellebore Seep Alliance | A4496 | 2.C.4.Nd.1.c |
| Association | CEGL006409 Sensitive Fern - (Northern Maidenhair) - Orange Jewelweed - Plantainleaf Sedge Seepage Meadow | CEGL006409 | 2.C.4.Nd.1.c |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: No Data Available
- Eastern Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boston, MA.
- Gawler, S. C., and P. S. Bowman. 2012. Vegetation classification and mapping at Saint-Gaudens National Historic Site, New Hampshire. Natural Resource Technical Report NPS/NER/NRTR--2012/584.1. National Park Service, Fort Collins, CO.
- 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.