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Name
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Reference
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Description |
Comm #11971
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Betula pumila - Dasiphora fruticosa ssp. floribunda / Carex lasiocarpa - Trichophorum alpinum Shrubland
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accession code: VB.CC.37050.CEGL002495
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Midwestern Ecology Working Group... |
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This extremely rich boreal shrub fen community is found in the northern Great Lakes region of the United States and Canada, and probably elsewhere in central Canada. Stands occur in water tracks of large peatlands. Water pH is slightly acidic to circumneutral (5.8-7.8). Shrubs dominate the stand, covering at least 25% of the area. Dominants include <i>Betula pumila, Dasiphora fruticosa ssp. floribunda (= Pentaphylloides floribunda), Salix</i> spp. (including <i>Salix pedicellaris</i>). Scrubby forms of the tree species <i>Thuja occidentalis</i> and <i>Larix laricina</i> often occur with the shrubs on the hummocks. Other shrubs and dwarf-shrubs include <i>Andromeda polifolia, Chamaedaphne calyculata, Vaccinium oxycoccos</i> and others. The herbaceous layer is dominated by <i>Carex lasiocarpa, Carex buxbaumii, Carex livida</i>, and <i>Calamagrostis stricta</i>. Other graminoids include <i>Trichophorum alpinum (= Scirpus hudsonianus), Carex interior</i> and <i>Carex limosa</i>. |
Comm #11972
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Quercus prinus / Cornus florida - Amelanchier arborea / Pityopsis graminifolia var. latifolia Woodland
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accession code: VB.CC.25476.QUERCUSPRINUSCO
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Southeastern Ecology Working Gro... |
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This woodland is apparently restricted to xeric sandstone and acid shales of Cumberland ridges. Its canopy is dominated by Quercus prinus. The understory consists of Cornus florida, Amelanchier arborea, Quercus spp., Carya glabra, Carya alba. The shrub layer is not strongly ericaceous, but does have Vaccinium pallidum. Pityopsis graminifolia var. latifolia is prominent in the herb layer. |
Comm #11973
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Metrosideros polymorpha Montane Mesic Forest
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accession code: VB.CC.24368.METROSIDEROSPOL
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Western Ecology Working Group of... |
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Comm #11974
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Tsuga heterophylla / Vaccinium ovalifolium / Dryopteris expansa Forest
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accession code: VB.CC.37212.CEGL003230
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DeMeo, T., J. Martin, and R. A. ... |
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Comm #11975
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Distichlis spicata - (Scirpus nevadensis) Herbaceous Vegetation
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accession code: VB.CC.19590.DISTICHLISSPICA
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Western Ecology Working Group of... |
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Comm #11976
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Carex lasiocarpa - Trichophorum caespitosum - Rhynchospora capillacea / Andromeda polifolia Herbaceous Vegetation
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accession code: VB.CC.35970.CEGL002496
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Midwestern Ecology Working Group... |
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This extremely rich seepage fen is found in northern Minnesota and adjacent boreal regions in Canada. Stands occur on shallow or deep peaty soils in areas of calcareous discharge. The surface water may be circumneutral (pH 6.8-8.0), with high concentrations of dissolved salts that often form a marl precipitate. The vegetation is dominated by open sedge, rush, and moss species. The dominant graminoid species include <i>Carex lasiocarpa, Carex interior, Carex limosa, Carex livida, Trichophorum alpinum (= Scirpus hudsonianus), Muhlenbergia glomerata, Rhynchospora capillacea</i>, and <i>Trichophorum caespitosum (= Scirpus cespitosus)</i>. Local dominants may include <i>Carex exilis</i> and <i>Cladium mariscoides</i>. Common herbs include <i>Equisetum fluviatile, Galium labradoricum, Menyanthes trifoliata, Sarracenia purpurea, Triglochin maritima, Triantha glutinosa (= Tofieldia glutinosa)</i>, and <i>Utricularia intermedia</i>. Mosses include <i>Campylium stellatum, </i><i>Limprichtia revolvens (= Drepanocladus revolvens), Tomentypnum nitens</i>, and <i>Scorpidium scorpioides</i>. Shrub associates, though never dominant, include the dwarf-shrubs <i>Andromeda polifolia</i> and <i>Vaccinium oxycoccos</i>, and taller shrubs or scrubs such as <i>Betula pumila, Chamaedaphne calyculata, Larix laricina, Lonicera villosa, Dasiphora fruticosa ssp. floribunda (= Pentaphylloides floribunda), Picea mariana, Rhamnus alnifolia</i>, and <i>Rubus arcticus ssp. acaulis (= Rubus acaulis)</i>. |
Comm #11977
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Carex lasiocarpa - Carex buxbaumii - Trichophorum caespitosum Boreal Herbaceous Vegetation
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accession code: VB.CC.35971.CEGL002500
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Midwestern Ecology Working Group... |
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This moderately rich graminoid fen type is found in the northern Great Lakes region of the United States and Canada, and elsewhere in central Canada. Stands are found in peatlands with moderate exposure to mineral-rich groundwater including wet, floating mats of basin fens, shores above the level of seasonal flooding, and larger peatlands. Substrate is saturated fibric to mesic peat. Vegetation is typically dominated by graminoids and <i>Sphagnum</i> spp. with low cover of ericaceous shrubs on the hummocks and a very scattered tree layer of <i>Picea mariana, Larix laricina</i>, and occasional <i>Thuja occidentalis</i>. Microtopography can consist of wet hollows with scattered low to intermediate hummocks. The graminoid layer is dominated by <i>Carex lasiocarpa, Carex limosa, Carex livida, Rhynchospora alba</i>, and <i>Trichophorum caespitosum (= Scirpus cespitosus)</i>. Other associated graminoids may include <i>Carex exilis</i> and <i>Trichophorum alpinum (= Scirpus hudsonianus)</i>. Typical herbs include <i>Drosera rotundifolia, Drosera intermedia, Equisetum fluviatile, Menyanthes trifoliata, Sarracenia purpurea</i>, and <i>Scheuchzeria palustris</i>. The ericaceous shrubs include <i>Andromeda polifolia, Betula pumila, Chamaedaphne calyculata</i>, and <i>Vaccinium oxycoccos</i>. Mosses include the brown mosses, such as <i>Campylium stellatum</i>, along with a partial sphagnum mat. Diagnostic features include the presence of many minerotrophic indicators and graminoid dominance. |
Comm #11978
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Carex lasiocarpa - Rhynchospora alba - Scheuchzeria palustris Herbaceous Vegetation
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accession code: VB.CC.35975.CEGL002501
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Midwestern Ecology Working Group... |
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This graminoid bog crest community type is found in northern Minnesota and adjacent Canada. Stands occur only in areas that are genuinely ombrotrophic, that is, receiving minerals only from precipitation and having a pH less than 4.1. This is a raised bog in which pool formations have developed near bog crests. Species in these bog pools are typically absent from typical habitats in raised bogs, where the water table may drop as much as 70-100 cm below the surface for a period of time. This community is dominated by sedges, cottongrasses, and <i>Sphagnum</i> spp. Scattered and stunted trees may be found in this community, but their canopy never covers more than 30%. The most abundant species are <i>Carex lasiocarpa, Carex limosa</i> and <i>Scheuchzeria palustris</i>. The presence of <i>Rhynchospora alba</i> and <i>Sphagnum cuspidatum</i> and the maritime species <i>Utricularia cornuta</i> also characterize this community. |
Comm #11979
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CEGL000742
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accession code: VB.CC.3346.CEGL000742
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #11980
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CEGL007669
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accession code: VB.CC.7278.CEGL007669
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EcoArt 2002 |
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