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A.1451 | EcoArt 2002
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Name: A.1451
Reference: EcoArt 2002
Description: This seep alliance, found in the central and upper southeastern United States, is dominated by herbaceous species but can also have a significant shrub component. Stands often occur in a forested setting and are small enough that the surrounding trees cast shade and otherwise affect the microenvironment. Some stands contain trees from the surrounding forest communities. The most abundant herbaceous species include ~Athyrium$ spp., ~Carex crinita, Carex lurida$, and other ~Carex$ spp., ~Impatiens capensis, Dryopteris carthusiana, Glyceria striata, Leersia oryzoides, Osmunda$ spp., and ~Symplocarpus foetidus$. In some stands of this alliance, ~Sphagnum$ spp. occur in patches. Although not found in every stand, they may be good diagnostic species. ~Alnus serrulata, Photinia melanocarpa (= Aronia melanocarpa)$, and ~Physocarpus opulifolius$ are common shrubs in some stands. Where trees occur, ~Acer rubrum, Betula nigra, Liriodendron tulipifera, Liquidambar styraciflua$, and ~Platanus occidentalis$ are typical. Stands of this alliance are found where groundwater flows to the surface at the edges of outwash plains, beach ridges, or at the contact between acidic gravel and bedrock. Soils are saturated sandy loams or sandy silts overlain with mucks and peats. They can be shallow to deep (40-100+ cm). There is weak nutrient input from the slightly to highly acidic (pH 3.7-6.0) groundwater. The groundwater flow is generally diffuse, but concentrated localized flows can occur, especially in the spring. 
Accession Code: VB.CC.1225.A1451
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 26-Nov-1997 to: 17-Mar-2005
     
  • status: accepted
  • Community's Parent: V.A.5.N.m
  • This Community's Level: Alliance
  • This Community's Children: [none]
Names:   Scientific: CAREX CRINITA - OSMUNDA SPP. / SPHAGNUM SPP. SATURATED HERBACEOUS ALLIANCE
  Common: Fringed Sedge - Royal Fern species / Peatmoss species Saturated Herbaceous Alliance
  Code: A.1451
(convergence) and Synonyms:
(undetermined) Carex crinita - Osmunda spp. / Sphagnum spp. Saturated Herbaceous Alliance