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Add/Drop	Name	Reference	Plots↓	Description
Comm #3011	Rhododendron carolinianum Shrubland » more details accession code: urn:lsid:vegbank.org:commConcept:32676-{C5B21D2F-B199-4C58-A978-C4D96745A80D}	NatureServe Biotics 2019	3	This mainly evergreen shrubland occurs on steep ridges and rock outcroppings, typically at 1040-1280 m (3400-4200 feet) elevation, in the mountains of western North Carolina. It is known from areas of quartzite and meta-arkose geology in Linville Gorge Wilderness. This community has at least 25% shrub cover and may occur as a dense shrubland, 2-4 m tall, or as a shorter, more open shrubland with areas of exposed rock with fruticose and crustose lichens, scattered mats of prostrate vegetation, and isolated clumps of herbaceous species. At least 50% of the total shrub cover is made up of <i>Rhododendron carolinianum</i>. Associated shrub species vary among occurrences, but can include <i>Kalmia latifolia, Lyonia ligustrina var. ligustrina, Vaccinium corymbosum, Vaccinium pallidum, Fothergilla major, Acer rubrum, Ilex montana</i>, and low-growing <i>Gaylussacia baccata</i> and <i>Leiophyllum buxifolium</i>. Some occurrences may have occasional stunted trees of <i>Pinus pungens</i> or <i>Pinus rigida</i>. More open occurrences have significant cover by mats of <i>Selaginella tortipila</i> and scattered herbaceous species such as <i>Galax urceolata, Hypericum densiflorum, Carex umbellata, Danthonia sericea, Coreopsis major, Liatris pilosa, Xerophyllum asphodeloides</i>, and <i>Schizachyrium scoparium</i>. High solar irradiation and desiccating winds, in combination with the shallow, nutrient-poor soils, are key environmental factors influencing this community. This community often occurs adjacent to or grades into xeric forests and woodlands dominated by <i>Pinus pungens, Tsuga caroliniana</i>, or <i>Quercus montana</i>.
Comm #3012	Fagus grandifolia - Quercus alba - Carya pallida / Quercus margarettae / Symplocos tinctoria East Gulf Coastal Plain Forest » more details accession code: urn:lsid:vegbank.org:commConcept:32717-{DFD5C0E2-928E-4665-929F-88E4B2DC8053}	NatureServe Biotics 2019	3	This association is a dry-mesic forest of sandy slopes along ravines in the East Gulf Coastal Plain. These forests are very distinct from the richer beech-white oak forests, ~<i>Fagus grandifolia - Quercus alba - Liquidambar styraciflua / Magnolia grandiflora / Smilax pumila</i> Forest (CEGL007210)$$, of finer-textured soils in the nearby Upper East Gulf Coastal Plain (both of these at Fort Benning, Georgia). Stands of this association have canopies dominated by <i>Fagus grandifolia</i> and <i>Quercus alba</i>. Other characteristic canopy species include <i>Quercus nigra, Quercus rubra</i> (which is absent from or rare in the canopy, and would be more likely found in the subcanopy), <i>Pinus taeda, Liriodendron tulipifera</i>, and <i>Liquidambar styraciflua</i>. The subcanopy includes <i>Carya pallida, Carya glabra, Quercus velutina, Quercus rubra, Quercus margarettae, Magnolia virginiana, Cornus florida, Oxydendrum arboreum, Ilex opaca, Ilex coriacea</i>, and <i>Acer leucoderme</i>. Shrubs include <i>Hamamelis virginiana, Prunus umbellata, Kalmia latifolia, Morella caroliniensis, Symplocos tinctoria, Euonymus americanus, Hydrangea arborescens, Persea borbonia, Leucothoe axillaris</i>, and <i>Vitis rotundifolia</i>. The herb layer is only moderately diverse with a variable composition that includes <i>Tipularia discolor, Medeola virginiana, Galax urceolata, Hexastylis arifolia, Polystichum acrostichoides, Collinsonia serotina, Smilax pumila, Osmunda cinnamomea</i>, and <i>Carex abscondita</i>.
Comm #3013	Smilax glauca - Toxicodendron radicans Vine-Shrubland » more details accession code: urn:lsid:vegbank.org:commConcept:32744-{278B0E86-07BF-4A70-9868-F1265F4875DB}	NatureServe Biotics 2019	3	This community is best described as vine-covered maritime sand dunes. Generally confined to barrier beach systems of the North Atlantic, this vegetation is composed of dense vines that cover the crests of dunes exposed to wind, salt spray and periodic overwash by storm tides. Very little soil development occurs, and the water table is well below 1 m in depth. The dominant species of any single dune may be one of several vine species such as <i>Smilax glauca, Smilax rotundifolia, Vitis rotundifolia, Parthenocissus quinquefolia</i>, or <i>Toxicodendron radicans</i>. In some cases, the vines are shallowly rooted in sand or growing over older vine stems or other living or dead shrubs such as <i>Morella pensylvanica</i>. Scattered dune grassland species may be present such as <i>Ammophila breviligulata, Lechea maritima, Solidago sempervirens</i>, and <i>Hudsonia tomentosa</i>. Diagnostic species are <i>Smilax glauca, Smilax rotundifolia, Toxicodendron radicans</i>, and <i>Parthenocissus quinquefolia</i>. The vegetation is generally low to the ground (less than half a meter tall) and generally covers 70-80% of the surface of the ground, the remainder being exposed sand. This vegetation is not widely described in the literature, but is likely to occur in New England south to Maryland.
Comm #3014	Southern Appalachian Bedrock Riverscour Vegetation » more details accession code: urn:lsid:vegbank.org:commConcept:32879-{8588F1FC-BD6E-4F22-B8C9-F1C213E6B0B6}	NatureServe Biotics 2019	3	This community is a bedrock scour community of medium to large rivers of the Southern Blue Ridge and possibly adjacent regions. The vegetation is confined to bedrock crevices and small soil pockets, and has low cover. The full range of its variation is poorly known. Known examples have <i>Andropogon virginicus</i> as the most constant abundant species. Other abundant herbs include <i>Ipomoea pandurata, Ionactis linariifolius, Dichanthelium acuminatum var. fasciculatum, Juncus marginatus, Justicia americana, Apocynum androsaemifolium</i>, and <i>Equisetum arvense</i>. Woody species include <i>Salix nigra, Platanus occidentalis, Ilex verticillata, Ulmus alata, Toxicodendron radicans</i>, and <i>Parthenocissus quinquefolia</i>.
Comm #3015	Juncus effusus Marsh » more details accession code: urn:lsid:vegbank.org:commConcept:32957-{CA217758-AE59-43A8-8CF4-DCDFB296AED2}	NatureServe Biotics 2019	3	This broadly defined type represents freshwater marsh vegetation dominated by <i>Juncus effusus</i>. Additional types may be developed as more information becomes available. This vegetation may occur in natural or artificial ponds, including beaver-enhanced ones. In various parts of its broad range as currently defined, associated species may include <i>Andropogon glomeratus, Cyperus</i> spp., <i>Typha latifolia, Scirpus cyperinus, Triadenum walteri, Apios americana</i>, and <i>Galium aparine</i>. This type includes seasonally to temporarily flooded vegetation dominated or codominated by <i>Juncus effusus</i> in the Central and Southern Appalachians.
Comm #3016	Lasallia (papulosa, pensylvanica) - Dimelaena oreina - (Melanelia culbersonii) Nonvascular Vegetation » more details accession code: urn:lsid:vegbank.org:commConcept:32986-{C285CE89-46D6-4295-9016-5363A83E26B8}	NatureServe Biotics 2019	3	This association is widely but locally distributed from the western Piedmont foothills in Maryland and Virginia through the Blue Ridge and Ridge and Valley portions of the Central Appalachians, north at least to the Delaware Water Gap in Pennsylvania and New Jersey. It occurs primarily on fully exposed, minimally weathered quartzite and sandstone boulderfields at elevations from about 300 to 1000 m (1000-3300 feet). On the largest occurrences, vascular plants are generally absent and lichens dominate these habitats. <i>Lasallia papulosa</i> and <i>Lasallia pensylvanica</i>, either singly or in combination, are generally abundant and conspicuous. <i>Dimelaena oreina</i> abundantly covers many dry, exposed rock surfaces that are not covered with <i>Lasallia</i> spp. and larger foliose lichens. Although of scattered occurrence, <i>Melanelia culbersonii</i> has been found across the full elevation range of the type and is a good diagnostic species, as it appears to be restricted mostly to siliciclastic rocks (and occasionally coarse-grained, quartz-rich granites that are nearly devoid of dark minerals) in this region. A variety of other foliose, crustose and fruticose lichen species are associated. Smaller, more marginal occurrences have sparse vascular plant cover, primarily stunted trees of <i>Betula lenta, Sassafras albidum</i>, and <i>Quercus montana</i>, ericaceous shrubs, and scrambling vines of <i>Parthenocissus quinquefolia</i>.
Comm #3017	Salix caroliniana / Sacciolepis striata - Boehmeria cylindrica Swamp Woodland » more details accession code: urn:lsid:vegbank.org:commConcept:33060-{B30FA866-D7B8-4E47-B4C8-AED4557073D1}	NatureServe Biotics 2019	3	This association occupies swales in forest-dominated dune fields, with scattered <i>Salix caroliniana</i> and some overhanging <i>Quercus virginiana</i> and <i>Sabal palmetto</i> (but not generally rooted in community). It can cover areas up to one hectare. Other characteristic species include <i>Sacciolepis striata, Boehmeria cylindrica, Panicum rigidulum var. rigidulum, Nekemias arborea</i>, and <i>Carex hyalina</i>. It was initially described from coastal North Carolina and presumably ranges into South Carolina. Its full range extent is not known.
Comm #3018	Nelumbo lutea Aquatic Vegetation » more details accession code: urn:lsid:vegbank.org:commConcept:33153-{90B6DDD9-69A9-4D8C-8DA2-53C2DF025720}	NatureServe Biotics 2019	3	The American lotus type occurs in natural wetlands or artificial impoundments across the eastern United States and southern Ontario. Stands are essentially monospecific <i>Nelumbo lutea</i> communities. This association may be divided as more information becomes available. In Wisconsin, this type is located primarily in the backwaters and impoundments of the Mississippi River and along the deep marshes of the lower Wolf River system. In the Central Appalachians this association includes mixed or monospecific <i>Nelumbo lutea</i> communities of natural wetlands or artificial impoundments, sometimes with scattered <i>Cephalanthus occidentalis</i>. Other floating-leaved aquatic plant species, such as <i>Nuphar advena</i> and <i>Nymphaea odorata</i>, may be present, as may emergent species such as <i>Schoenoplectus tabernaemontani, Pontederia cordata, Juncus effusus, Typha latifolia, Eichhornia crassipes</i> (alien), <i>Hydrocotyle</i> spp., and floating aquatics, such as <i>Salvinia minima, Spirodela</i> spp., <i>Lemna</i> spp., and <i>Azolla caroliniana</i>. The hydrology of this association is highly variable; the hydrologic placement is debatable.
Comm #3019	Amphianthus pusillus - Isoetes melanospora - Isoetes tegetiformans Granite Pool Vegetation » more details accession code: urn:lsid:vegbank.org:commConcept:33169-{3D36402A-8BE6-4DA6-900A-1AC51BFB2D21}	NatureServe Biotics 2019	3	This community occupies the deepest pools with the longest hydroperiods found on granitic flatrocks of Georgia, South Carolina, and Alabama. These pools have intact rims, shallow soils, and are of sufficient depth to retain water for several weeks after a rain. The vegetation of these pools is limited to the rare aquatic endemics <i>Amphianthus pusillus, Isoetes melanospora</i>, and <i>Isoetes tegetiformans</i>.
Comm #3020	Parthenocissus quinquefolia / (Dicentra eximia) Sparse Vegetation » more details accession code: urn:lsid:vegbank.org:commConcept:33242-{6832A8A5-F1DB-484F-8076-818934EE8D13}	NatureServe Biotics 2019	3	This sparse vegetation is known from low elevations (below 762 m [2500 feet]) in the Appalachians (e.g., Nantahala Gorge, North Carolina, Lookout Mountain and Neddy Mountain, Tennessee). These talus slopes vary from very sparse to sometimes having substantial cover of <i>Toxicodendron radicans</i> and <i>Parthenocissus quinquefolia</i>. Scattered herbs sometimes include <i>Dicentra eximia, Dryopteris marginalis, Asplenium rhizophyllum, Scutellaria ovata, Polymnia canadensis</i>, and <i>Dioscorea quaternata</i>.