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Name
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Reference
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Plots↓
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Description |
Comm #11951
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CEGL000697
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accession code: VB.CC.3302.CEGL000697
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #11952
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POPULUS WISLIZENI FOREST ALLIANCE
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accession code: VB.cc.30205.POPULUSWISLIZEN
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NVC 2004 |
0
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Comm #11953
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Quercus havardii var. tuckeri Shrubland
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accession code: VB.CC.31984.CEGL002486
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Western Ecology Working Group of... |
0
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This short-shrub association is restricted to dunes, sandsheets and pockets of sand on mesas, plateaus and valley bottoms in southeastern Utah. Sites are generally on flat or gentle slopes, with a few sites on moderately steep (50%) slopes. Elevations range between 1335 and1772 m, and aspect is not a major factor in determining the distribution of this association. Bare ground or loose sand cover most of the unvegetated surface, although in less-disturbed sites biological soil crusts can have as much as 30% cover. Soils are rapidly drained, deep loamy sands and sandy loams derived from alluvium or eolian deposits. Total vegetation cover ranges from 10 to 110% in these sparsely to moderately vegetated stands. The vegetation is dominated by patches of <i>Quercus havardii var. tuckeri</i> shrubs that range in cover from 5 to 85%. Because shrub roots anchor the sandy soil in this erosive habitat, <i>Quercus havardii var. tuckeri</i> shrubs often occupy hummocks of sand as much as a meter high. Associated shrubs include <i>Coleogyne ramosissima, Ephedra viridis, Gutierrezia sarothrae, Shepherdia rotundifolia</i>, and <i>Opuntia polyacantha</i>. The herbaceous layer provides sparse cover. Graminoids present often include <i>Achnatherum hymenoides, Muhlenbergia pungens, Pleuraphis jamesii</i>, and <i>Vulpia octoflora</i>. Scattered forbs may include <i>Cryptantha</i> sp., <i>Streptanthella longirostris, Hymenopappus filifolius</i>, and <i>Lepidium montanum</i>. Scattered <i>Juniperus osteosperma</i> trees are present in some stands. |
Comm #11954
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Brachypodium distachyon Herbaceous Vegetation
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accession code: VB.CC.34237.CEGL003374
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Western Ecology Working Group of... |
0
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This association is only known from the Golden Gate National Recreation Area and from the Santa Cruz Mountains of California. In both areas the stands are found on xeric exposures in areas that were likely to have supported native grasslands prior to the introduction of non-native grasses and forbs. Information about its global characteristics is not available without additional inventory. |
Comm #11955
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CEGL002727
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accession code: VB.CC.5119.CEGL002727
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #11956
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CEGL003217
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accession code: VB.CC.5349.CEGL003217
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #11957
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CEGL003218
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accession code: VB.CC.5350.CEGL003218
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #11958
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Pinus banksiana - (Quercus ellipsoidalis) / Schizachyrium scoparium - Prairie Forbs Barrens Woodland
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accession code: VB.CC.36828.CEGL002490
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Midwestern Ecology Working Group... |
0
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This jack pine barrens type is found in the northern tallgrass and prairie-forest border region of the United States and Canada. The topography is flat to rolling, and stands are formed on sands of glacial, lacustrine, or riverine origin. The sandy soils are acidic, droughty, and infertile. The open vegetation was historically influenced by fires. The vegetation is dominated by grasses and forbs with a sparse tree layer. The dominant tree is <i>Pinus banksiana</i>, with varying amounts of <i>Quercus ellipsoidalis, Pinus resinosa, Populus tremuloides</i>, and <i>Populus grandidentata</i>. The composition of all the strata of this community can vary significantly. <i>Pinus banksiana</i> is a constant across all sites, but it can be virtually the only tree species present or one of many. <i>Quercus ellipsoidalis</i> or <i>Quercus macrocarpa</i> can outnumber <i>Pinus banksiana</i> on some sites, especially those that have not been burned for many years. <i>Pinus resinosa</i> is typically at low densities in most examples of this community. Dry sites tend to have fewer woody shrub species and more herbaceous species with sand prairie affinities. Among these are <i>Dalea villosa, Koeleria macrantha, Prunus pumila, Schizachyrium scoparium</i>, and <i>Calamovilfa longifolia</i>. Dry-mesic areas have more <i>Andropogon gerardii, Amorpha canescens, Liatris aspera</i>, and <i>Hesperostipa spartea (= Stipa spartea)</i>. Patches of heath may occur, dominated by shrubby species such as <i>Arctostaphylos uva-ursi, Comptonia peregrina, Hudsonia tomentosa</i>, and <i>Vaccinium angustifolium</i>. |
Comm #11959
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CEGL001670
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accession code: VB.CC.4238.CEGL001670
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #11960
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V.A.4.N.a
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accession code: VB.CC.615.VA4NA
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EcoArt 2002 |
0
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