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Name
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Reference
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Plots↓
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Description |
Comm #13211
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Rhododendron (catawbiense, carolinianum) - Kalmia latifolia Shrubland Alliance
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accession code: VB.CC.22089.RHODODENDRONCAT
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Southeastern Ecology Working Gro... |
0
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This alliance includes evergreen shrublands occurring on steep, exposed slopes, ridges, and rock outcrops in the southern Appalachian Mountains. These shrublands are dominated by evergreen ericaceous species, most often Rhododendron catawbiense, Rhododendron carolinianum, or Kalmia latifolia. Deciduous shrubs may be present and even locally dominant. The occurrence and relative abundance of associated shrub species vary with elevation and adjacent vegetation. These shrublands are subject to extremes in moisture due to extreme cold, high precipitation, frequent fog, and desiccating winds in combination with shallow, nutrient-poor soils. Windfall, landslides, and small, localized, lightning-caused fires are important in the establishment and maintenance of these shrublands. |
Comm #13212
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CEGL001144
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accession code: VB.CC.3743.CEGL001144
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #13213
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CEGL008312
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accession code: VB.CC.7653.CEGL008312
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EcoArt 2002 |
0
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Comm #13214
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CEGL008313
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accession code: VB.CC.7654.CEGL008313
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EcoArt 2002 |
0
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Comm #13215
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CEGL008314
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accession code: VB.CC.7655.CEGL008314
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EcoArt 2002 |
0
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Comm #13216
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Baccharis emoryi / Muhlenbergia asperifolia Shrubland
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accession code: VB.CC.28348.BACCHARISEMORYI
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Western Ecology Working Group of... |
0
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Comm #13217
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Atriplex confertifolia / Elymus elymoides Shrubland
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accession code: VB.CC.17844.ATRIPLEXCONFERT
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Western Ecology Working Group of... |
0
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Comm #13218
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CEGL003201
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accession code: VB.CC.5334.CEGL003201
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #13219
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Atriplex confertifolia / Sporobolus cryptandrus Shrubland
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accession code: VB.CC.31897.CEGL003762
NOT CURRENTLY ACCEPTED
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Western Ecology Working Group of... |
0
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This xeric, alkaline shrub association occurs on hillsides, dry stream terraces and benches. Sites are flat to moderately steep (up to 30% slopes) often on southwestern aspects. Soils are rapidly drained sandy loams and silty clays derived from alluvium. Total vegetation cover ranges from 8 to 40%. The vegetation is characterized by an open canopy of <i>Atriplex confertifolia</i> and an understory dominated by the bunchgrass <i>Sporobolus cryptandrus</i>. Associated shrubs include <i>Opuntia polyacantha</i> and <i>Sclerocactus whipplei</i>. Associated herbaceous species include the annual exotic <i>Bromus tectorum</i> and the short bunchgrass <i>Muhlenbergia pungens</i>. Forbs occasionally present include <i>Cryptantha crassisepala, Erodium cicutarium, Gaillardia pinnatifida, Plantago patagonica</i>, and <i>Streptanthella longirostris</i>. Biological soil crusts provide up to 25% cover. |
Comm #13220
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Pinus rigida - Quercus alba / Sporobolus heterolepis - Andropogon gerardii Woodland
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accession code: VB.CC.36025.CEGL003768
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Southeastern Ecology Working Gro... |
0
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This community occurs on shallow, rocky soils associated with outcrops of serpentinized olivine in the Southern Blue Ridge. It is a unique community with a restricted range and few known occurrences. This community includes open woodland vegetation dominated by stunted <i>Pinus rigida</i> and <i>Quercus alba</i>, occurring over a cespitose graminoid-dominated understory with little shrub cover. Although the relative basal area for the two canopy species is the same, <i>Pinus rigida</i> is twice as dense as <i>Quercus alba</i>. Other canopy and subcanopy trees may include <i>Tsuga canadensis, Acer rubrum</i>, and <i>Oxydendrum arboreum</i>. The dense herbaceous stratum is dominated by <i>Andropogon gerardii, Sporobolus heterolepis</i>, and <i>Schizachyrium scoparium</i>. Common forbs include <i>Packera plattensis (= Senecio plattensis), Hexastylis arifolia var. ruthii</i>, and <i>Thalictrum macrostylum</i>. |
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