| Add/Drop |
Name
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Reference
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Plots↓
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Description |
Comm #101
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Grayia spinosa Shrubland Alliance
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accession code: VB.cc.30693.GRAYIASPINOSASH
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NVC 2004 |
144
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Comm #102
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Artemisia californica Shrubland
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accession code: VB.CC.37378.CEGL003536
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143
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This shrubland occurs in the Central Coast, South Coast, Transverse and Peninsular ranges of California and south to at least the Mexican border. Stands occur at elevations below 700 m, mostly on southwestern aspects but occasionally on northern aspects. Slopes are gentle to steep, mostly moderate. Topography is variable along lower slopes to ridgetops. Parent material is often Mesozoic granite, occasionally sandstone, and soil texture varies from sand to clay and includes sand and clay loams. Stands are characterized by a dominance of <i>Artemisia californica</i> in the shrub layer and a mostly non-native herbaceous layer. Shrub species <i>Malosma laurina</i> and <i>Eriogonum fasciculatum</i> are often present but at relatively low cover. Herbaceous species may be abundant in the understory, including <i>Dichelostemma capitatum ssp. capitatum, Logfia gallica (= Filago gallica), Lotus scoparius var. scoparius, Lotus wrangelianus, Bromus hordeaceus, Bromus rubens (= Bromus madritensis ssp. rubens), Nassella lepida, Bromus madritensis</i>, and <i>Centaurea melitensis</i>. An emergent tree layer is infrequent and may include <i>Quercus agrifolia, Juglans californica</i>, and <i>Schinus molle</i>. |
Comm #103
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Menodora spinescens Dwarf-shrubland Alliance
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accession code: VB.cc.30722.MENODORASPINESC
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NVC 2004 |
142
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Comm #104
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ABIES LASIOCARPA - ACER GLABRUM ALLIANCE
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accession code: VB.CC.8258.ABIESLASIOCARPA
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Jennings 2003. Vegetation alliances: composition and function. |
142
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Comm #105
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Sparse Vegetation
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accession code: VB.cc.30272.SPARSEVEGETATIO
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NVC 2004 |
141
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Comm #106
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Quercus montana - Quercus rubra / Rhododendron maximum / Galax urceolata Forest
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accession code: urn:lsid:vegbank.org:commConcept:34933-{0CE33A69-90A5-4818-8AB9-9AACB46B5E26}
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NatureServe Biotics 2019 |
137
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This forest is known from protected, usually steep slopes in the Southern Blue Ridge and ranges into adjacent areas of the upper Piedmont to the east and the Allegheny and Cumberland Mountains and Southern Ridge and Valley to the west and north. In the southern portion of its range (Southern Blue Ridge), it usually occurs on north-facing slopes, while in the northern part of its range (the Allegheny and Cumberland Mountains in West Virginia), most sites have southerly to westerly aspects. This is typically a midslope to lower slope type, but it can be found on upper slopes in a more sheltered position. This forest is found at elevations between 760 and 1220 m (2500-4000 feet) in the Southern Blue Ridge and at somewhat lower elevations (200-760 m) in the Allegheny and Cumberland Mountains in West Virginia. Canopies in these forests are dominated by <i>Quercus montana</i>, usually with lesser amounts of <i>Quercus rubra</i> and/or <i>Acer rubrum</i>, and always occurring over a dense, very tall shrub stratum (2-6 m) of <i>Rhododendron maximum</i>. In some examples, this community may also be codominated or dominated by <i>Quercus velutina, Quercus alba</i>, or <i>Betula lenta</i>. Additional trees with lower constancy and cover in the canopy and subcanopy include <i>Tsuga canadensis, Oxydendrum arboreum, Fagus grandifolia</i>, and <i>Nyssa sylvatica</i>. On some sites, <i>Tsuga canadensis</i> may have dense understory regeneration. In some areas of the Southern Blue Ridge, <i>Rhododendron minus</i> may dominate the shrub layer. Other common shrubs can include <i>Gaylussacia ursina</i> (in the Southern Blue Ridge), <i>Kalmia latifolia, Smilax rotundifolia, Ilex opaca var. opaca</i>, and/or <i>Hamamelis virginiana</i>. Herbs are sparse. The ground cover is dominated by leaf litter, but <i>Galax urceolata</i> is found in most occurrences except at the northern limit of this type's range in West Virginia. Other herb species that can be typical include <i>Chimaphila maculata, Goodyera pubescens, Polystichum acrostichoides, Maianthemum racemosum, Solidago caesia, Mitchella repens, Eurybia divaricata, Dryopteris marginalis</i>, and <i>Dioscorea quaternata</i>. Some examples may have sparse (woodland-like) canopies and occur in association with rock outcroppings. Vascular plant species richness in seven 400-m2 West Virginia plots ranges from 12 to 49 taxa (mean = 30.1). |
Comm #107
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Adenostoma fasciculatum Shrubland
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accession code: VB.CC.37458.CEGL002924
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135
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This shrubland association occurs on extremely xeric sites at 38 to 1097 m (124-3600 feet) elevation on mid to upper slopes and ridgetops on all aspects. Surface is undulating to linear, on moderately steep to steep slopes. Soils tend to be moderately well-developed and somewhat stony with variable textures including sand, clay, silt, and various loams. The parent material ranges from igneous, granitic, metamorphic, to gneiss and may include gabbro and serpentine substrates in the Sierra Nevada foothills. Vegetation is dominated by <i>Adenostoma fasciculatum</i> in the shrub layer, with a diverse but low cover herbaceous layer. <i>Arctostaphylos glauca, Arctostaphylos pungens, Eriogonum fasciculatum, Heteromeles arbutifolia, Salvia columbariae, Salvia apiana</i>, and <i>Yucca whipplei</i> may occur at low cover. The herb layer is open and may include <i>Bromus madritensis, Aira caryophyllea, Avena barbata, Erodium cicutarium</i>, and <i>Lotus</i> spp. There are rarely emergent trees, at very low cover, which may include <i>Pinus sabiniana, Quercus agrifolia, Umbellularia californica</i>, or <i>Platanus racemosa</i>. |
Comm #108
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ALNUS VIRIDIS ALLIANCE
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accession code: VB.CC.12966.ALNUSVIRIDISALL
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Jennings 2003. Vegetation alliances: composition and function. |
134
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Comm #109
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Ceanothus spinosus Shrubland
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accession code: VB.CC.37444.CEGL003612
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134
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This shrubland association occurs on moderately steep to very steep northeast- and northwest-facing slopes at low elevations between 0 and 692 m. It is characterized by a strong dominance of <i>Ceanothus spinosus</i> in the shrub layer and may include a wide variety of mesophytic species in the herbaceous layer, none apparently in high constancy. The emergent tree layer includes <i>Quercus agrifolia</i> and <i>Juglans californica</i>. |
Comm #110
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Hymenoclea salsola Shrubland Alliance
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accession code: VB.cc.30700.HYMENOCLEASALSO
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NVC 2004 |
133
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