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Reference
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Description |
Comm #221
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Thuja occidentalis / Abies balsamea - Acer spicatum Forest
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accession code: urn:lsid:vegbank.org:commConcept:31357-{EB774CD9-516E-4866-955B-0278E6B71322}
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NatureServe Biotics 2019 |
76
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This subboreal upland white-cedar forest occurs in the United States in northeastern Minnesota and in the eastern boreal regions of Canada. Stands are found on gentle moist slopes to very steep well-drained slopes. Soils are fine to moderately coarse-textured, usually calcareous, moderately deep to deep (50-100 cm), and often contain boulders at the surface. The overstory is dominated by coniferous trees, with or without a substantial deciduous component. <i>Thuja occidentalis</i> is the most abundant tree and may occur in pure stands. Other canopy species include <i>Abies balsamea, Acer rubrum, Betula papyrifera, Picea glauca, Picea mariana, Populus tremuloides</i>, and <i>Pinus strobus</i>. There is usually an abundant shrub/sapling layer with saplings of <i>Thuja occidentalis</i> and <i>Abies balsamea</i> along with <i>Acer pensylvanicum</i> and the shrubs <i>Acer spicatum, Corylus cornuta, Linnaea borealis, Lonicera canadensis, Rubus pubescens</i>, and <i>Sorbus decora</i>. <i>Vaccinium angustifolium</i> and <i>Viburnum nudum var. cassinoides</i> may be present on more acidic sites. The ground layer is typically diverse on mesic to wet-mesic stands and less so on drier stands. Typical species include <i>Aralia nudicaulis, Eurybia macrophylla, Clintonia borealis, Coptis trifolia, Cornus canadensis, Dryopteris carthusiana, Galium triflorum, Gymnocarpium dryopteris, Maianthemum canadense, Mitella nuda, Streptopus lanceolatus, Trillium undulatum</i>, and <i>Trientalis borealis</i>. Mosses include <i>Sanionia uncinata, Hylocomium splendens, Plagiomnium cuspidatum, Pleurozium schreberi, Ptilium crista-castrensis</i>, and <i>Rhytidiadelphus triquetrus</i>. |
Comm #222
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Platanus occidentalis - Celtis laevigata - Fraxinus pennsylvanica / Ilex decidua / Carex retroflexa Floodplain Forest
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accession code: urn:lsid:vegbank.org:commConcept:35918-{941B96F3-939F-4933-BAE3-818BB62B339C}
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NatureServe Biotics 2019 |
76
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This forest association occurs on terraces of associated rivers and large creeks in the Mid-Atlantic Coastal Plain, lower Piedmont, and possibly in adjacent regions. These are relatively more well-drained than the adjacent flats. The mostly closed canopy of this community is dominated by <i>Platanus occidentalis, Celtis laevigata</i>, and <i>Fraxinus pennsylvanica</i>. These species, along with <i>Acer negundo</i>, are important in the well-developed subcanopy also. Other tree species are possible in these strata; these include <i>Crataegus viridis, Juglans nigra, Acer saccharinum, Morus rubra, Ilex decidua, Ulmus americana, Planera aquatica, Quercus laurifolia, Quercus nigra, Liquidambar styraciflua, Populus deltoides, Carya aquatica</i>, and others. The shrub layer generally is sparse and is dominated by <i>Lindera benzoin, Ilex decidua, Asimina triloba</i>, and likely other species as well. Some examples of this community also have patches of <i>Arundinaria gigantea</i> in spots. The herbaceous layer is typically sparse to moderate and constant species are <i>Boehmeria cylindrica, Carex grayi, Carex retroflexa</i>, and <i>Viola</i> spp. Other typical species include <i>Botrychium dissectum, Carex frankii, Carex lupulina, Chasmanthium latifolium, Onoclea sensibilis, Pilea pumila, Polygonum hydropiperoides, Polygonum virginianum</i>, and others. The vine stratum is moderate and many species are possible. Among these are <i>Bignonia capreolata, Parthenocissus quinquefolia, Smilax tamnoides, Vitis rotundifolia, Nekemias arborea, Berchemia scandens, Gelsemium sempervirens</i>, and <i>Toxicodendron radicans</i>. Exotic species such as <i>Ligustrum sinense, Lonicera japonica</i>, and <i>Microstegium vimineum</i> may invade stands of this association, and increase following disturbance. This forest type is documented in the Mid-Atlantic Coastal Plain (and lower Piedmont) but is possible in adjacent regions; global distribution needs assessment. |
Comm #223
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BEDROCK SPARSE VEGETATION ALLIANCE
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accession code: VB.cc.29904.BEDROCKSPARSEVE
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NVC 2004 |
75
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Comm #224
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Arctostaphylos pungens Shrubland Alliance
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accession code: VB.cc.30610.ARCTOSTAPHYLOSP
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NVC 2004 |
75
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Comm #225
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SALSOLA KALI HERBACEOUS ALLIANCE
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accession code: VB.cc.30557.SALSOLAKALIHERB
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NVC 2004 |
75
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Comm #226
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Panicum hemitomon - Eleocharis equisetoides - Rhynchospora inundata Marsh
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accession code: urn:lsid:vegbank.org:commConcept:32971-{080F066E-336F-44D3-9ADB-A8CED248B1B8}
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NatureServe Biotics 2019 |
75
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This association covers emergent zones of Coastal Plain limesink ponds. Stands are dominated by <i>Panicum hemitomon, Eleocharis equisetoides</i>, and <i>Rhynchospora inundata</i>. Other characteristic species include <i>Eleocharis elongata, Eleocharis robbinsii, Rhynchospora careyana, Eriocaulon compressum, Xyris smalliana, Polygala cymosa</i>, and <i>Juncus abortivus</i>. The use of <i>Eleocharis</i> species as nominals and in the description would indicate that this association is intended to cover deeper ponds, or the deeper zones of those ponds. |
Comm #227
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ABIES CONCOLOR - PINUS PONDEROSA WOODLAND ALLIANCE
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accession code: VB.cc.29783.ABIESCONCOLORPI
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NVC 2004 |
74
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Comm #228
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ARTEMISIA ARBUSCULA ALLIANCE
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accession code: VB.CC.9895.ARTEMISIAARBUSC
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Jennings 2003. Vegetation alliances: composition and function. |
74
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Comm #229
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Ephedra (viridis/cutleri) Shrubland Alliance
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accession code: VB.cc.30025.EPHEDRAVIRIDISC
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NVC 2004 |
74
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Comm #230
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Douglas-fir Forest Alliance
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accession code: VB.cc.29999.DOUGLASFIRFORES
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NVC 2004 |
74
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