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Add/Drop	Name	Reference	Plots↓	Description
Comm #10541	Schizachyrium scoparium - Sorghastrum nutans Jackson Prairie Herbaceous Vegetation » more details accession code: VB.CC.35071.CEGL004721	Southeastern Ecology Working Gro...	0	This upland herbaceous community is characterized by treeless openings dominated by perennial grasses, composites, and legumes, with scattered clumps of shrubby vegetation. These floristically diverse areas are typically less than 1-8 hectares in size and occur within a calcareous forest matrix. The community develops on ridgetops and upper slopes on exposures of marine-derived calcareous clays associated with the Jackson Formation in the local landscape. These clays are well-drained, slowly permeable, and alkaline (pH 7.5-8.0). They have calcareous concretions, gypsum (selenite) crystals and high shrink-swell properties. Numerous types of marine fossils are present in some local exposures (especially at Copenhagen Prairie). Moisture regimes are typically dry to dry-mesic. The combination of periodic fire, high soil pH and extreme physical soil properties are thought to be important in maintaining this community in a landscape otherwise dominated by forests (at least historically). This community occurs in central Louisiana and is known mainly from Caldwell Parish (Copenhagen Prairie) but also is known from northern Grant Parish (including the historic Tancock Prairie) and Sabine Parish. Grasses include <i>Schizachyrium scoparium, Andropogon gerardii, Danthonia spicata, Sporobolus</i> spp., <i>Bouteloua curtipendula</i> (rarely), <i>Paspalum floridanum</i> and <i>Sorghastrum nutans</i>. Characteristic forbs include <i>Dalea candida, Ruellia humilis, Desmanthus illinoensis, Koeleria macrantha, Silphium integrifolium, Arnoglossum plantagineum, Asclepias tuberosa, Baptisia nuttalliana, Callirhoe papaver, Coreopsis lanceolata, Gaillardia aestivalis, Houstonia purpurea var. calycosa (= Hedyotis purpurea var. calycosa), Brickellia eupatorioides (= Kuhnia eupatorioides), Manfreda virginica, Neptunia lutea, Salvia lyrata, Echinacea purpurea, Delphinium carolinianum, Ratibida pinnata</i>, and others.
Comm #10542	Quercus imbricaria - Quercus shumardii - Quercus muehlenbergii / Celtis occidentalis / Urtica chamaedryoides Forest » more details accession code: VB.CC.34954.CEGL003876	Southeastern Ecology Working Gro...	0	This forest is found in small patches on flat to rolling uplands on somewhat rocky soils derived from Mississippian and Ordovician limestones in the Interior Low Plateau of Tennessee and Kentucky, including the Nashville Basin and the Mammoth Cave Uplands. Stands are dominated by <i>Quercus imbricaria, Quercus shumardii</i>, and <i>Quercus muehlenbergii</i> with <i>Quercus stellata</i>. <i>Celtis occidentalis</i> is important as an understory species, and <i>Urtica chamaedryoides</i> is a characteristic herbaceous species.
Comm #10543	A.764 » more details accession code: VB.CC.2395.A764 NOT CURRENTLY ACCEPTED	EcoArt 2002	0	Stands of this xeric chaparral vegetation type of central and southern California occur on slopes from 100-1350 m of elevation. At the upper end of the elevational range, stands are restricted to south-facing slopes. Soils vary in depth, but are usually coarse-textured. Precipitation patterns are very Mediterranean, with the bulk of the precipitation falling between November and May. Yearly rainfall totals vary between 25 and 80 cm. This shrubland is dominated by ~Ceanothus crassifolius$. Other shrubs present may include ~Arctostaphylos glauca, Cercocarpus montanus var. glaber, Salvia mellifera, Eriogonum fasciculatum, Adenostoma fasciculatum, Ceanothus leucodermis, Rhamnus ilicifolia (= Rhamnus crocea ssp. ilicifolia), Quercus dumosa$, and ~Heteromeles arbutifolia$. Emergent trees may be present. The herbaceous layer is sparse.
Comm #10544	CEGL004651 » more details accession code: VB.CC.6176.CEGL004651 NOT CURRENTLY ACCEPTED	EcoArt 2002	0
Comm #10545	Quercus (pagoda, phellos, shumardii) - Celtis laevigata / Cornus foemina / Podophyllum peltatum - Hymenocallis occidentalis Flatwoods Forest » more details accession code: VB.CC.34979.CEGL003880	Southeastern Ecology Working Gro...	0	These seasonally inundated wet hardwood forests occur on gently rolling or flat terrain along small streams and sometimes on shallowly depressed upland flats in the Great Valley subsection of the Ridge and Valley of Georgia and Alabama. These communities are typically located within a few miles of the major rivers of this region. Known examples occur along the Conasauga, Coosawattee, Oostanaula and Coosa rivers. In Georgia, these sites are locally known as "flatwoods." The substrate for this association is deep, stiff calcareous clays derived from weathered shale and limestone of the Conasauga Group. They are very poorly drained and seasonally inundated by winter rain and then subjected to extreme drying and cracking during the summer growing season. This results in a canopy that tends to be somewhat stunted and open allowing for a very well-developed and diverse herbaceous layer that includes many calciphilic species. Characteristically these forests are a mosaic of wetland depressions interspersed with scattered, raised hummocks of marginally upland forest. Stands of this association are dominated by a variable combination of <i>Quercus phellos, Quercus shumardii, Quercus pagoda</i>, and <i>Celtis laevigata</i>, but the canopy is very diverse and quite variable. In some occurrences, <i>Carya myristiciformis</i> is an important component. The understory and shrub layer can vary greatly from open, to patchy, to occasionally quite dense. <i>Cornus foemina, Chionanthus virginicus, Ulmus alata, Ostrya virginiana, Ilex decidua, Sideroxylon lycioides, Carpinus caroliniana</i>, and <i>Cercis canadensis</i> are conspicuous dominants. Like the canopy layer, the understory and shrub layer is very diverse. The herbaceous layer is perhaps the most diverse component of this association and can include a large number of species where extensive expanses of this habitat exists. Included here are rare narrow endemics such as <i>Prenanthes barbata, Clematis socialis, Thalictrum debile</i>, and <i>Aureolaria patula</i>. Openings within these associations can sometimes include other narrowly distributed species such as <i>Marshallia mohrii</i> and <i>Jamesianthus alabamensis</i>. Many herbaceous species found in these flatwoods are disjunct northern or midwestern species with prairie affiliations such as <i>Asclepias purpurascens, Packera paupercula, Clematis fremontii</i>, and <i>Lilium michiganense</i>. Often, calciphilic species can predominate. Many additional herbaceous species occur in these forests, some with wetland affinities and others that are aligned with rich mesic woodlands. Few deciduous forested plant associations can compare with this association in overall plant diversity and potential for rare species.
Comm #10546	CEGL003089 » more details accession code: VB.CC.5298.CEGL003089	EcoArt 2002	0
Comm #10547	CEGL003349 » more details accession code: VB.CC.5427.CEGL003349 NOT CURRENTLY ACCEPTED	EcoArt 2002	0
Comm #10548	Cornus amomum - Salix candida / Dasiphora fruticosa ssp. floribunda / Carex stricta Shrubland » more details accession code: VB.CC.26798.CORNUSAMOMUMSAL	Eastern Ecology Working Group of...	0	This calcareous fen shrubland is characterized by hummocky microtopography and dense patches of shrubs with small interspersed graminoid openings. A portion of the water budget is comprised of strongly minerotrophic seepage water. Substrate is typically woody peat. Shrubs like Cornus amomum, Cornus sericea, and Salix spp. (Salix candida, Salix petiolaris, Salix serissima, and Salix discolor) are dominant and very characteristic of this association. Other shrubs include Dasiphora fruticosa ssp. floribunda (= Pentaphylloides floribunda), Alnus incana, Toxicodendron vernix, Myrica gale, and Viburnum dentatum. Carex stricta is a characteristic sedge; other herbaceous associates include Carex aquatilis, Eupatorium maculatum, Solidago patula, Solidago uliginosa, Spiranthes cernua, Trollius laxus, Thelypteris palustris, Muhlenbergia glomerata, Parnassia glauca, Drosera rotundifolia, Carex lacustris, Ludwigia palustris, Equisetum fluviatile, and Deschampsia caespitosa. Juniperus virginiana occurs as scattered individuals and is characteristic of this association in New Jersey.
Comm #10549	CEGL005181 » more details accession code: VB.CC.6511.CEGL005181 NOT CURRENTLY ACCEPTED	EcoArt 2002	0
Comm #10550	Quercus laurifolia - Nyssa biflora East Gulf Coastal Plain Saturated Forest » more details accession code: VB.CC.35204.CEGL004754 NOT CURRENTLY ACCEPTED	Southeastern Ecology Working Gro...	0	This is a Provisional association for the East Gulf Coastal Plain and possible adjacent ecoregions. More information is needed.