| Add/Drop |
Name
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Reference
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Plots↓
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Description |
Comm #1771
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Pinus discolor Woodland Alliance
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accession code: VB.cc.30754.PINUSDISCOLORWO
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NVC 2004 |
8
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Comm #1772
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PRUNUS ANDERSONII SHRUBLAND ALLIANCE
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accession code: VB.cc.30214.PRUNUSANDERSONI
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NVC 2004 |
8
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Comm #1773
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Havard Oak Shrubland Alliance
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accession code: VB.cc.30423.HAVARDOAKSHRUBL
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NVC 2004 |
8
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Comm #1774
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THREEAWN HERBACEOUS ALLIANCE
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accession code: VB.cc.30320.THREEAWNHERBACE
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NVC 2004 |
8
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Comm #1775
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Impatiens (capensis, pallida) - Monarda didyma - Rudbeckia laciniata var. humilis Herbaceous Vegetation
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accession code: VB.CC.37526.CEGL004293
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8
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This association covers forb-dominated palustrine vegetation occurring as small wetlands at high elevations (greater than 1200 m [4000 feet]), on upper slopes and ridgetops in the Southern Blue Ridge ecoregion. These areas lack extensive <i>Sphagnum</i> and are typically open, without shading from a forest canopy. Typical dominant species include <i>Impatiens capensis, Impatiens pallida, Monarda didyma</i>, and <i>Rudbeckia laciniata var. humilis</i>. Other characteristic species include <i>Aconitum reclinatum, Cardamine clematitis, Carex leptonervia, Carex debilis var. rudgei (= Carex flexuosa), Carex ruthii, Chelone lyonii, Cicuta maculata, Claytonia caroliniana, Conioselinum chinense, Euonymus obovatus, Geum geniculatum, Helenium autumnale, Houstonia serpyllifolia, Lilium superbum, Lilium grayi, Packera aurea (= Senecio aureus), Solidago patula, Thalictrum clavatum, Trautvetteria caroliniensis, Veratrum viride, Viola cucullata</i>, and <i>Viola macloskeyi ssp. pallens</i>. This vegetation is often associated with boulderfield forests or other northern hardwood forests [see ~<i>Betula alleghaniensis - Aesculus flava</i> Forest Alliance (A0266)$$]. |
Comm #1776
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Rhododendron arborescens / Marshallia grandiflora - Triantha glutinosa - Platanthera flava var. herbiola Herbaceous Vegetation
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accession code: VB.CC.37497.CEGL006598
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8
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This herbaceous riverscour prairie occurs on temporarily flooded sand and cobbles in the Allegheny Mountains region of West Virginia, at elevations between 1060 and 1100 m. It is a small-patch type that occupies flat to gently sloping islands, cobble bars, and shorelines along high-gradient streams. Ice-scour and flood deposition/scour keep this community open and prevent accumulation of organic material in the substrate. Flooding can occur at any time of year. The community is characterized by a remarkable profusion of showy, flowering forbs, which share a tolerance for high-energy flooding and ice-scour. The shrub layer, kept at low stature and cover by frequent ice-scour, averages 12% cover and includes <i>Rhododendron arborescens, Hypericum densiflorum</i>, and <i>Alnus incana ssp. rugosa</i>. The herbaceous layer, averaging 60% cover, includes a large number of species with high constancy, including <i>Marshallia grandiflora, Euthamia graminifolia var. graminifolia, Carex stricta, Eleocharis tenuis, Sanguisorba canadensis, Triantha glutinosa, Hypericum ellipticum, Solidago rugosa, Calamagrostis canadensis var. canadensis, Trautvetteria caroliniensis var. caroliniensis, Juncus dudleyi, Potentilla simplex, Houstonia serpyllifolia, Phlox maculata, Deschampsia caespitosa, Lycopus uniflorus var. uniflorus</i>, and <i>Platanthera flava var. herbiola</i>. Exotic weeds washed in by the river typically include <i>Prunella vulgaris, Anthoxanthum odoratum ssp. odoratum</i>, and <i>Daucus carota</i>. Cover by nonvascular plants is insignificant. Indicator species that help to distinguish this community from others within the herbaceous physiognomy for high-elevation wetlands of the Allegheny Mountains region include <i>Marshallia grandiflora, Juncus dudleyi, Krigia biflora var. biflora, Lysimachia quadrifolia, Phlox maculata, Platanthera flava var. herbiola, Rhododendron arborescens, Sanguisorba canadensis, Triantha glutinosa</i>, and <i>Trautvetteria caroliniensis var. caroliniensis</i>. Mean species richness of vascular plants is 37 taxa per 400 square meters. |
Comm #1777
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Quercus lobata - Quercus agrifolia / Annual Grass-Herb Woodland
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accession code: VB.CC.37407.CEGL002872
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8
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This woodland is known from central to southern California. It occurs on gentle to steep slopes with variable aspects at low elevations between 91 and 1158 m. It is usually found on deep clay, sand, or rocky to clay loam soils. It is dominated by <i>Quercus agrifolia</i> and <i>Quercus lobata</i> in the tree layer and <i>Brassica nigra</i> in the herbaceous layer. Other tree species may include <i>Juglans californica</i> and <i>Pseudotsuga menziesii</i> at low cover. The shrub layer is sparse to intermittent with an herbaceous understory that may include <i>Hirschfeldia incana, Centaurea melitensis, Lactuca serriola, Marrubium vulgare, Eriogonum elongatum</i>, and the graminoids <i>Bromus diandrus</i> or <i>Leymus condensatus</i>. |
Comm #1778
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Schizachyrium scoparium - Bouteloua curtipendula Herbaceous Alliance
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accession code: VB.cc.30850.SCHIZACHYRIUMSC
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NVC 2004 |
8
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Comm #1779
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XERIC PINUS CONTORTA -- PSEUDOTSUGA FOREST
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accession code: VB.CC.29461.XERICPINUSCONTO
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Peet Dissertation (1975) |
8
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Comm #1780
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Andropogon (capillipes, glaucopsis) - Rhynchospora fascicularis var. fascicularis - Rhexia mariana Wet Meadow
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accession code: urn:lsid:vegbank.org:commConcept:33248-{5CE00E0E-7D3D-4248-B3B7-A49C529FC98E}
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NatureServe Biotics 2019 |
8
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This community occurs in seasonally flooded, short hydroperiod situations in depressional wetlands. At Paynes Prairie (a 6000-hectare basin in the Florida peninsula), this community has the shortest hydroperiod of the various graminoid-dominated communities. It is dominated by various mixtures of <i>Andropogon capillipes, Andropogon glaucopsis, Andropogon glomeratus var. hirsutior, Andropogon virginicus, Rhynchospora fascicularis var. fascicularis, Rhynchospora microcarpa, Juncus marginatus, Sesbania vesicaria</i>, and <i>Rhexia mariana</i>. Other characteristic species are <i>Eupatorium capillifolium, Panicum hemitomon, Eupatorium mohrii, Ludwigia suffruticosa, Ludwigia microcarpa, Hibiscus grandiflorus, Rhynchospora caduca, Euthamia caroliniana, Fimbristylis</i> sp., <i>Hydrocotyle</i> spp., <i>Ptilimnium capillaceum, Boehmeria cylindrica, Paspalum notatum</i>, and <i>Paspalum urvillei</i>. |
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