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Name
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Reference
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Description |
Comm #1821
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Vitis rotundifolia / Triplasis purpurea - Panicum amarum - Schizachyrium littorale Mid-Atlantic Coastal Medaño Sparse Vegetation
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accession code: urn:lsid:vegbank.org:commConcept:33188-{4EC9118E-A8DE-4BF1-892B-D60ED0FDC34D}
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NatureServe Biotics 2019 |
8
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This association consists of large, shifting dunes (15-50 m high) in the Mid-Atlantic Coastal Plain of North Carolina. Scattered vegetation is present, particularly woody vines, such as <i>Vitis rotundifolia, Vitis cinerea var. floridana, Campsis radicans</i>, and <i>Parthenocissus quinquefolia</i>. Scattered clumps of pioneer herbs, shrubs, and subshrubs, such as <i>Schizachyrium littorale, Panicum amarum, Ammophila breviligulata, Triplasis purpurea, Uniola paniculata, Cenchrus tribuloides, Diodia teres, Chrysopsis gossypina, Prunus serotina</i>, and <i>Hudsonia tomentosa</i> occur in sheltered locations, particularly low on the dune. This community apparently harbors several globally rare invertebrates. Dunes with any substantial vegetation are not classified here. The best remaining examples of this sparse vegetation are Jockey's Ridge and Run Hill (Dare County, North Carolina). Former examples (now stabilized and vegetated) are the Seven Sisters (Currituck County, North Carolina), Kitty Hawk (Dare County, North Carolina), and Bald Head (Brunswick County, North Carolina). These are the highest dunes on the coast of eastern North America. |
Comm #1822
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Pinus palustris / Quercus marilandica - Quercus laevis / Aristida beyrichiana - Nolina georgiana Woodland
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accession code: urn:lsid:vegbank.org:commConcept:33275-{99FE0209-CBB3-4492-9FE7-0FBF46D17D80}
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NatureServe Biotics 2019 |
8
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This community is known from Broxton Rocks in south-central Georgia (Coffee County); it is a characteristic community of the Altamaha Grit, associated with sandstone outcrops. In addition to the nominal species, characteristic species of this association are <i>Andropogon ternarius, Sericocarpus tortifolius, Eryngium yuccifolium, Gelsemium sempervirens, Penstemon dissectus, Pteridium aquilinum var. pseudocaudatum, Schizachyrium scoparium, Smilax glauca, Tephrosia virginiana, Vaccinium elliottii, Vaccinium arboreum, Vaccinium stamineum</i>, and <i>Yucca filamentosa</i>. |
Comm #1823
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Carex biltmoreana - Pycnanthemum spp. - Krigia montana Grassland
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accession code: urn:lsid:vegbank.org:commConcept:33309-{461D9B20-767C-49D4-A6C1-19B2C57DD335}
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NatureServe Biotics 2019 |
8
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This community is restricted to granitic outcrops in the Southern Appalachians, south of Asheville, North Carolina, and south to Georgia. This association is found on sloping exfoliation surfaces with generally 10-80% cover of vascular plants. Stands are dominated by <i>Carex biltmoreana</i>. Scattered woody plants may be within an occurrence. Other characteristic species include <i>Krigia montana, Houstonia longifolia, Schizachyrium scoparium, Diervilla sessilifolia, Melampyrum lineare, Ambrosia artemisiifolia, Coreopsis pubescens, Coreopsis major, Dichanthelium dichotomum var. dichotomum, Dichanthelium acuminatum var. lindheimeri, Pycnanthemum beadlei, Symphyotrichum patens var. patens, Heuchera villosa, Fraxinus americana, Sassafras albidum</i>, and <i>Saxifraga michauxii</i>. This community occupies seasonal or temporary seepage over rock, and is moister than <i>Selaginella tortipila</i> communities, which can occur on the same mountains, or sometimes, even in juxtaposition. This community occurs as small patches (typically less than 10 acres) within a forested matrix. |
Comm #1824
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Tsuga canadensis - (Liriodendron tulipifera, Fagus grandifolia) / Magnolia macrophylla / Polystichum acrostichoides Forest
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accession code: urn:lsid:vegbank.org:commConcept:33544-{C9791B64-E1C0-4C87-B252-4BFD118975B3}
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NatureServe Biotics 2019 |
8
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This association represents acidic forests dominated by <i>Tsuga canadensis</i> and mesic hardwood species, occurring in the Cumberland Plateau of Alabama. These forests occur in steep mesic ravines associated with thick to massive bedded sandstone formations where <i>Tsuga canadensis</i> and <i>Fagus grandifolia</i> usually codominate. Common associates include <i>Magnolia macrophylla, Ilex opaca, Carya glabra, Carpinus caroliniana, Ostrya virginiana, Oxydendrum arboreum, Liriodendron tulipifera</i>, and <i>Betula lenta</i>. The understory ranges from open to closed, and may include <i>Arundinaria gigantea, Lindera benzoin, Kalmia latifolia, Hydrangea quercifolia, Viburnum acerifolium, Symplocos tinctoria, Styrax grandifolius</i>, and <i>Hamamelis virginiana</i>. <i>Xanthorhiza simplicissima</i> is often present in the streamside areas of this association. The herbaceous layer is typically sparse. Herbaceous components may include <i>Carex picta, Dryopteris marginalis, Thelypteris noveboracensis, Polystichum acrostichoides, Athyrium filix-femina, Goodyera pubescens, Mitchella repens, Chimaphila maculata, Asarum canadense</i>, and <i>Sanguinaria canadensis</i>. Characteristics vines include <i>Smilax glauca, Smilax rotundifolia, Decumaria barbara, Toxicodendron radicans</i>, and <i>Vitis rotundifolia</i>. |
Comm #1825
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Liriodendron tulipifera - Quercus alba - (Liquidambar styraciflua) / Ilex opaca / Polystichum acrostichoides Piedmont Floodplain Forest
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accession code: urn:lsid:vegbank.org:commConcept:33669-{3AE60116-445C-450F-9CD5-A813A4430B1B}
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NatureServe Biotics 2019 |
8
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These communities occur along intermittent to small first- or second-order streams in typical Piedmont terrain. Floodplains are narrow and poorly developed, but flooding produces small alluvial deposits and scours portions. Dominant canopy species include both upland species and species of broad moisture tolerance. <i>Liriodendron tulipifera</i> is almost always abundant. <i>Quercus alba</i> and <i>Liquidambar styraciflua</i> are usually present. <i>Quercus rubra, Acer rubrum</i>, and <i>Fagus grandifolia</i> may be present. Frequent understory species include <i>Ilex opaca, Acer rubrum, Carpinus caroliniana, Oxydendrum arboreum</i>, and <i>Cornus florida</i>. The shrub component is variable from place to place and may include <i>Vaccinium fuscatum, Vaccinium corymbosum, Lindera benzoin, Arundinaria gigantea, Xanthorhiza simplicissima, Leucothoe axillaris, Hamamelis virginiana, Alnus serrulata, Viburnum nudum</i>, or <i>Kalmia latifolia</i>. Herbs that dominate patches include <i>Polystichum acrostichoides, Athyrium filix-femina ssp. asplenioides, Thelypteris noveboracensis, Carex</i> spp., <i>Chasmanthium laxum, Leersia virginica, Osmunda cinnamomea</i>, and <i>Osmunda regalis</i>. <i>Chasmanthium latifolium</i> is occasionally abundant. |
Comm #1826
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Pinus rigida - Quercus montana / Gaylussacia baccata / Carex pensylvanica Woodland
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accession code: urn:lsid:vegbank.org:commConcept:33597-{8411147B-4F88-4B00-BB91-6AB6C7CD5131}
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NatureServe Biotics 2019 |
8
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This association grows on massive, gently to steeply sloping pavements of Silurian, Devonian, and Pennsylvanian sandstones that occur locally on the middle to upper sideslopes of ridges in the Ridge and Valley and Cumberland Mountains of Virginia and possibly West Virginia. It also occurs on the Allegheny Plateau and Ridge and Valley physiographic provinces in Maryland. Most stands occur in the elevational range of 760 to 1100 m (2500-3600 feet); Maryland stands are much lower in elevation at 245 to 305 m (800-1000 feet) than stands documented in Virginia and West Virginia. Aspect varies from east to northwest, and moisture conditions are generally xeric. Surface substrate cover of exposed bedrock averages 75 to 80%. Soil development in these habitats is negligible, consisting of shallow organic-rich accumulations in cracks, crevices, and shallow depressions. Occasional ledges support very thin veneers of soil material, which is extremely acidic and nutrient-poor. Summer drought and strong winter winds and ice are major stressors of this community type. Vegetation is characterized by a sparse, stunted woodland of short (often <6 m tall), widely spaced <i>Pinus rigida</i>, often in association with <i>Quercus montana</i>. Occasional canopy associates include <i>Quercus rubra, Pinus virginiana</i>, and <i>Pinus echinata</i>. Total canopy cover is usually <25% and often <10%, with trees rooted in larger cracks and crevices. Total shrub cover is typically 10-15%, with <i>Betula lenta, Smilax glauca, Gaylussacia baccata, Kalmia latifolia, Amelanchier arborea, Acer rubrum, Sassafras albidum</i>, and <i>Vaccinium pallidum</i> the most frequent species. The herb layer is sparse (generally <5% total cover), with only occasional, continuous patches of <i>Carex pensylvanica, Danthonia spicata</i>, or <i>Deschampsia flexuosa</i> covering a few square meters. Lithophytic species such as <i>Corydalis sempervirens, Dicentra eximia, Polypodium appalachianum</i>, and <i>Saxifraga michauxii</i> are characteristic but occur at very low cover. Lichens and bryophytes usually cover much of the exposed pavement surfaces. The glades over Pottsville in the Ridge and Valley of Maryland are characterized as sparse woodlands with a strong dominance of <i>Pinus virginiana</i> and/or <i>Pinus rigida</i> in variable proportions. Oaks such as <i>Quercus montana</i> and <i>Quercus velutina</i> are also present but minor. |
Comm #1827
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Pinus palustris / Quercus falcata / Cornus florida / Aristida beyrichiana Woodland
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accession code: urn:lsid:vegbank.org:commConcept:33714-{F95F280F-0DE7-4412-B2DE-9941D610A7E2}
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NatureServe Biotics 2019 |
8
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This association is an upland longleaf pine community occurring on rolling, clay-based hills and upland flats in the East Gulf Coastal Plain, within the distribution of <i>Aristida beyrichiana</i>. Occurrences contain widely spaced pines with a few understory shrubs and a dense ground cover of grasses and herbs. The canopy of undisturbed examples is dominated by <i>Pinus palustris</i>, the subcanopy by scattered <i>Quercus falcata</i> (some possibly reaching the canopy). In forests that have been fire-managed, the midstory is sparse, providing an open, park-like appearance to this community. Shrubs and trees in this stratum include <i>Quercus incana, Quercus hemisphaerica, Cornus florida, Sassafras albidum, Prunus serotina, Castanea pumila, Ilex glabra, Morella cerifera, Serenoa repens, Rhus copallinum, Vaccinium arboreum, Vaccinium elliottii</i>, and <i>Diospyros virginiana</i>. The herbaceous understory is dominated by <i>Aristida beyrichiana</i>. In addition, this stratum includes <i>Sorghastrum</i> spp., <i>Andropogon</i> spp., <i>Gymnopogon ambiguus, Schizachyrium scoparium</i>, and <i>Schizachyrium tenerum</i>. Forbs found here include <i>Solidago odora, Pityopsis</i> spp., <i>Balduina uniflora, Symphyotrichum adnatum, Sericocarpus tortifolius, Liatris</i> spp., <i>Pterocaulon pycnostachyum, Tephrosia chrysophylla, Rhynchosia</i> spp., <i>Galactia</i> spp., <i>Stylosanthes biflora, Centrosema virginianum</i>, and <i>Crotalaria purshii</i>. |
Comm #1828
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Quercus wislizeni – Ceanothus leucodermis Association
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accession code: urn:lsid:vegtwig.vegbank.org:commconcept:170-{D418527E-1B88-4F3A-B871-83AE40D22032}
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MCV2 |
8
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37.403.01 |
Comm #1829
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Quercus wislizeni – Quercus chrysolepis shrub Association
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accession code: urn:lsid:vegtwig.vegbank.org:commconcept:169-{5A92A2A2-7407-4D79-A97C-840B5326B832}
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MCV2 |
8
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37.402.01 |
Comm #1830
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Avena fatua Semi-natural Association
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accession code: urn:lsid:vegtwig.vegbank.org:commconcept:296-{C17964CF-EB2B-4B1C-92E0-21EF26ADE36C}
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MCV2 |
8
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44.150.04 |
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