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Add/Drop	Name	Reference	Plots↓	Description
Comm #7891	CEGL001453 » more details accession code: VB.CC.4037.CEGL001453 NOT CURRENTLY ACCEPTED	EcoArt 2002	0
Comm #7892	Abies fraseri / (Rhododendron catawbiense, Rhododendron carolinianum) Forest » more details accession code: VB.CC.36386.CEGL006308	Southeastern Ecology Working Gro...	0	This community occurs as island-like stands in the southern Appalachian Mountains of eastern Tennessee, and western North Carolina. It occurs on rocky spurs, steep ridges, and south-facing slopes above 1830 m (6000 feet) elevation, often adjacent to montane shrublands. This forest has a canopy strongly dominated by <i>Abies fraseri</i>, occurring over a shrub stratum dominated by evergreen species, typically <i>Rhododendron catawbiense, Rhododendron carolinianum</i>, or <i>Rhododendron maximum</i>. <i>Abies fraseri</i> in the canopy are 17-23 cm in diameter and 10-11 m tall, giving these forests a stunted appearance. Other species that may occur with low coverage in the canopy or subcanopy are <i>Picea rubens, Sorbus americana, Betula alleghaniensis, Prunus pensylvanica</i>. Herbaceous cover is typically sparse. On steep, rocky, northerly slopes, coverage by mosses, liverworts, and lichens can approach 100%. Bryophyte species include <i>Hylocomium splendens, Ptilium crista-castrensis, Sphagnum</i> spp., and <i>Polytrichum ohioense</i>. This forest may grade into forests dominated by <i>Picea rubens</i> and <i>Abies fraseri</i>, montane grasslands, high-elevation shrublands, or high-elevation rock outcrop communities.
Comm #7893	Cladium mariscoides - Drosera intermedia - Eleocharis rostellata Herbaceous Vegetation » more details accession code: VB.CC.31348.CEGL006310	Eastern Ecology Working Group of...	0	This association comprises "sea-level fens" of the central and north Atlantic coast. These are small-patch communities occurring at the edge of salt marshes adjacent to sandy or gravelly slopes where there is acidic, oligotrophic groundwater seepage. Although its association with salt marshes is diagnostic, it is only infrequently influenced by salt or brackish overwash during unusually high tides. The physiognomy is dominated by herbs, occasionally with some scattered shrubs or short trees. The diagnostic species include <i>Cladium mariscoides, Rhynchospora alba, Eleocharis rostellata, Drosera intermedia</i>, and <i>Schoenoplectus pungens (= Scirpus pungens)</i>. Other associated species may include <i>Symphyotrichum novi-belgii (= Aster novi-belgii), Carex exilis, Carex hormathodes, Carex leptalea, Eleocharis fallax, Juncus canadensis, Juncus pelocarpus, Lysimachia terrestris, Rosa palustris, Vaccinium macrocarpon, Sanguisorba canadensis, Teucrium canadense</i>, and <i>Schoenoplectus americanus (= Scirpus americanus)</i> and <i>Eriocaulon decangulare</i> in the southern portion of the association range. Woody species occurring at low cover may include <i>Morella pensylvanica (= Myrica pensylvanica), Baccharis halimifolia, Juniperus virginiana, Iva frutescens</i>, and in the southern portion of the range, <i>Morella cerifera (= Myrica cerifera)</i>. Substrate is sedgy peat over sand or gravel.
Comm #7894	VII.C.4 » more details accession code: VB.CC.178.VIIC4	EcoArt 2002	0
Comm #7895	Quercus velutina - Quercus coccinea - Quercus prinus / Kalmia latifolia Forest » more details accession code: VB.CC.31227.CEGL006374	Eastern Ecology Working Group of...	0	This association comprises coastal oak-laurel forests occurring on sandy and gravelly soils on convex slopes. Characteristic dominants are <i>Quercus coccinea, Quercus velutina, Quercus prinus</i>, and <i>Quercus alba</i>. Pines (<i>Pinus rigida, Pinus echinata</i>, or <i>Pinus virginiana</i>) may be present at low cover in some examples. <i>Kalmia latifolia</i> is the dominant shrub forming extensive, dense patches, with other ericaceous shrubs such as <i>Vaccinium pallidum, Vaccinium stamineum</i>, and <i>Gaylussacia baccata</i> contributing low cover. The herbaceous layer is sparse due to the dense <i>Kalmia latifolia</i> and may include <i>Pteridium aquilinum, Gaultheria procumbens, Carex pensylvanica</i>, and <i>Carex albicans</i>.
Comm #7896	Diapensia lapponica Dwarf-shrubland » more details accession code: VB.CC.31360.CEGL006322	Eastern Ecology Working Group of...	0	These alpine barrens are found on extremely exposed areas above treeline on the highest peaks of the northern Appalachian Mountains. They occur on relatively flat, windswept areas where snow cover is slight or absent, at elevations of 1220 to 1675 m (4000-5500 feet). The soils are minimally developed, well-drained gravels, where frost heaving and winter freezing is characteristic. Dwarf-shrub cushion plants are the dominant feature of the vegetation, which is often less than 10 cm high; herbs and lichens are sparse. Between the plants, the ground cover is bare gravel. The dominant shrub is <i>Diapensia lapponica</i> forming low domes. Associated shrubs, in compact mats, include <i>Vaccinium uliginosum</i> and <i>Empetrum nigrum</i>, and, at the higher elevations, <i>Rhododendron lapponicum, Loiseleuria procumbens</i>, and <i>Arctostaphylos alpina</i>. Herbs include <i>Juncus trifidus, Carex bigelowii, Solidago multiradiata, Minuartia groenlandica</i>, and <i>Agrostis mertensii</i>. This association is differentiated from co-occurring alpine vegetation (primarily ~<i>Vaccinium uliginosum - Rhododendron lapponicum / Juncus trifidus</i> Dwarf-shrubland (CEGL006298)$$) by the greater dominance of <i>Diapensia</i>, which in most cases has higher cover than any other shrub species.
Comm #7897	Schizachyrium scoparium - Sorghastrum nutans - Bouteloua curtipendula - Rudbeckia missouriensis - Hedyotis nigricans Wooded Herbaceous Vegetation » more details accession code: VB.CC.35960.CEGL002398	Midwestern Ecology Working Group...	0	This bluestem graminoid dolomite glade community is found in the United States in the Ozark region of Missouri and Arkansas. Stands occur on moderate to steep slopes of dissected hills, steep valley slopes above large rivers and streams. Aspect is variable, but typically southern and western. Soils are rapidly drained (seasonally saturated in winter and spring) and shallow (0-40 cm). The parent material is dolomitic (dolostone) bedrock. The vegetation is dominated by medium-tall grasses and forbs, occasionally with stunted trees and shrubs. Stands are dominated <i>Schizachyrium scoparium, Bouteloua curtipendula, Sporobolus heterolepis</i>, occurring with <i>Andropogon gerardii, Rudbeckia missouriensis, Symphyotrichum sericeum (= Aster sericeus), Buchnera americana, Oenothera macrocarpa (= Oenothera missouriensis), Clinopodium arkansanum (= Satureja arkansana), Sporobolus neglectus, Echinacea paradoxa, Evolvulus nuttallianus, Leavenworthia uniflora, Clematis fremontii (= var. riehlii), Centaurea americana, Valerianella ozarkana, Yucca glauca, Eriogonum longifolium, Acacia angustissima, Phyllanthus polygonoides, Cotinus obovatus, Stenosiphon linifolius, Palafoxia callosa, Centaurium texense, Scutellaria bushii, Penstemon cobaea (= var. purpureus), Marshallia caespitosa var. signata, Thelesperma filifolium var. filifolium (= Thelesperma trifidum), Juniperus ashei, Toxicodendron pubescens (= Rhus toxicodendron)</i>, and lichens <i>Lecanora muralis, Caloplaca saxicola, Placidium lachneum (= Dermatocarpon lachneum), Psora russellii, Placynthium nigrum</i>. Some additional forbs and grasses from Arkansas occurrences include <i>Asclepias amplexicaulis, Asclepias viridiflora, Coreopsis lanceolata, Croton capitatus, Desmanthus illinoensis, Grindelia lanceolata, Hedyotis nigricans, Liatris cylindracea, Minuartia patula, Mirabilis albida, Onosmodium molle ssp. subsetosum, Rhynchosia latifolia</i>, and <i>Ruellia humilis</i>.
Comm #7898	Deschampsia caespitosa - Vernonia noveboracensis Herbaceous Vegetation » more details accession code: VB.CC.31011.CEGL006316	Eastern Ecology Working Group of...	0	This serpentine wetland community occurs in groundwater seep areas of low slope (1-3°) and variable aspect in Chester County, Pennsylvania. Soils are typically very wet (saturated) clay loams and sapric peats (muck) derived from serpentine bedrock. Soil depth is generally greater than 30 cm and can exceed 60 cm. This community is very open with woody plants limited to occasional trees, typically <i>Acer rubrum</i> along the wetland edge and scattered <i>Alnus serrulata</i> within the wetland. The dominant herbaceous species is <i>Deschampsia caespitosa</i>. Other important herbaceous species include <i>Leersia oryzoides, Sorghastrum nutans, Juncus tenuis, Vernonia noveboracensis</i>, and <i>Dichanthelium clandestinum (= Panicum clandestinum)</i>.
Comm #7899	Pinus taeda - Quercus falcata - Quercus alba / Chasmanthium sessiliflorum - Piptochaetium avenaceum Forest » more details accession code: VB.CC.34933.CEGL004091 NOT CURRENTLY ACCEPTED	Southeastern Ecology Working Gro...	0	This type is a nutrient-rich calcareous to subcalcareous, mesic to subxeric Coastal Plain forest or woodland documented from the Mid-Atlantic Coastal Plain of South Carolina, extending to North Carolina and possibly Virginia. Stands contain <i>Quercus falcata</i> and <i>Quercus alba</i> with <i>Pinus taeda</i> and <i>Liquidambar styraciflua</i> in the canopy. Other canopy components may include <i>Carya glabra, Quercus nigra, Fraxinus americana, Quercus michauxii, Quercus velutina</i>, and, on fire-suppressed sites, <i>Fagus grandifolia</i>. The subcanopy is dominated by <i>Cornus florida</i>. The shrub layer is dominated by <i>Aesculus pavia, Symplocos tinctoria, Callicarpa americana</i>, and <i>Hamamelis virginiana</i>. Dominant grasses include <i>Chasmanthium sessiliflorum, Piptochaetium avenaceum</i>, and <i>Sorghastrum elliottii</i>. In addition, <i>Carex tenax</i> is another ground-layer dominant. <i>Hexastylis arifolia</i> is the most characteristic forb.
Comm #7900	Acer rubrum / Alnus maritima ssp. maritima Woodland » more details accession code: VB.CC.37490.CEGL006317 NOT CURRENTLY ACCEPTED	Coxe, R. 2006. Prime Hook Nation...	0	This community is a low-growing, partially open to open saturated woodland basin swamp that occurs alongside a freshwater creek in the Prime Hook National Wildlife Refuge in Delaware. It is almost completely dominated by <i>Acer rubrum</i>. The substrate is peat and muck characterized by hummock-and-hollow microtopography. The edges of the community alongside the creek and the understory are dominated by <i>Alnus maritima ssp. maritima</i>. <i>Decodon verticillatus, Clethra alnifolia, Morella</i><i> pensylvanica</i>, and occasionally <i>Cephalanthus occidentalis</i> and <i>Leucothoe racemosa</i> occur as associates in the shrub layer. <i>Toxicodendron radicans</i> and <i>Smilax rotundifolia</i> are typical in the vine layer. The herbaceous layer grows densely on hummocks. Herbaceous species include <i>Osmunda regalis, Triadenum virginicum, Lobelia cardinalis, Carex seorsa, Dulichium arundinaceum</i>, and <i>Polygonum hydropiperoides</i>. The community may be successional due to ditching and may be artificially maintained by water control structures present along the stream. This community is not tidally influenced due to the damming of the associated stream. Occasional storm surges may influence this community, as it is located in close proximity to the coast.