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Name
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Reference
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Description |
Comm #1661
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Betula glandulosa / Mesic Forbs - Mesic Graminoids Wet Shrubland
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accession code: urn:lsid:vegbank.org:commConcept:31561-{B033E432-485C-44C4-9D08-2B00DECDD270}
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NatureServe Biotics 2019 |
9
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Most stands of this association occur in subalpine meadows and willow communities in Colorado and Wyoming. It grows in areas where soils are saturated from snowmelt runoff for a significant part of the growing season, often on fens or bogs, where the vegetation receives water from seeps and springs. Elevational range is 2600-3000 m (8500-10,000 feet). <i>Betula glandulosa</i> dominates the canopy with 20-80% cover. Due to their small size, <i>Betula glandulosa</i> patches often intergrade with surrounding communities. Other shrubs present include 0-20% cover each of <i>Salix planifolia, Salix monticola, Salix wolfii</i>, and <i>Dasiphora fruticosa ssp. floribunda</i>, and 0-10% cover each of <i>Salix brachycarpa</i> and <i>Lonicera involucrata</i>. The herbaceous undergrowth grows on small hummocks and is usually dominated by a dense mixture of mesic forbs and mesic graminoids. Mesic graminoids include <i>Calamagrostis canadensis, Carex aquatilis, Carex norvegica, Carex utriculata</i>, and <i>Deschampsia cespitosa</i>. Forb species with lower cover include <i>Chamerion angustifolium, Caltha leptosepala, Conioselinum scopulorum, Ligusticum filicinum, Angelica pinnata, Mertensia ciliata</i>, and <i>Thalictrum alpinum</i>. |
Comm #1662
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Artemisia tridentata - (Ericameria nauseosa) / Bromus tectorum Ruderal Shrubland
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accession code: urn:lsid:vegbank.org:commConcept:31607-{78C1A2E8-8C77-46A6-8FB7-156A04B6845F}
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NatureServe Biotics 2019 |
9
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This association is unfortunately quite common throughout the Colorado Plateau and throughout the range of big sagebrush in the western U.S. due to a history of heavy grazing pressure by domestic livestock. This shrubland has a canopy of <i>Artemisia tridentata ssp. tridentata</i> which is always present, often with a lesser component of <i>Ericameria nauseosa, Atriplex canescens</i>, or <i>Chrysothamnus viscidiflorus</i>. The non-native annual grass <i>Bromus tectorum</i> dominates the herbaceous undergrowth layer, and is frequently accompanied by other non-native grasses and forbs. Individuals or small patches of native grasses and forbs may occur, including <i>Leymus cinereus, Achnatherum hymenoides</i>, and <i>Sporobolus cryptandrus</i>. However, the natives are overwhelmed by the non-natives, such that it is impossible to determine what native association the stand may have been prior to conversion to a ruderal type. Stands occur in small to moderate-sized patches on alluvial terraces, floodplains, and point bars, mostly below 2000 m (6560 feet) elevation. |
Comm #1663
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Pinus monophylla - Juniperus osteosperma / (Shepherdia rotundifolia, Amelanchier utahensis) Woodland
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accession code: urn:lsid:vegbank.org:commConcept:31844-{C36BCDDE-04C2-46AB-AF55-3A983C04D021}
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NatureServe Biotics 2019 |
9
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This association has only been described from Zion National Park, Utah. Additional global information will be added as it becomes available. At Zion National Park, this association has comparatively diverse species composition and moderate cover for upland pinyon-juniper vegetation types. <i>Juniperus osteosperma</i> and <i>Pinus monophylla</i> have combined foliar cover of over 20% and heights averaging 5 m. The indicator species of this association is <i>Shepherdia rotundifolia</i>. This species is always present, but has low cover. <i>Amelanchier utahensis</i> is commonly present, also with low cover. Other shrubs that may be present are <i>Quercus turbinella, Fraxinus anomala</i>, and <i>Rhus trilobata</i>. Subshrubs <i>Yucca</i> spp., <i>Opuntia</i> spp., and <i>Gutierrezia sarothrae</i> are nearly always present, but each species contributes less than 5% cover. Herbaceous species may include <i>Poa fendleriana, Hesperostipa comata, Pleuraphis jamesii</i>, with 5-30% cover, and a wide variety of forbs with minimal cover. (There have been situations where all species are present except <i>Shepherdia rotundifolia</i>, and classification is still appropriate. It is likely nearby.) This association appears to be related to more mesic sites than ~<i>Pinus monophylla - Juniperus osteosperma / Quercus turbinella</i> Woodland (CEGL002941)$$. Elevations range from 1370 to 1710 m (4500-5600 feet) with slope aspects commonly north to east. Soils are sandy or, in some cases, clay or silt loams. |
Comm #1664
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Sambucus nigra ssp. cerulea / Leymus condensatus - Annual Grass-Herb Wet Shrubland
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accession code: urn:lsid:vegbank.org:commConcept:31991-{8730B84A-1C77-4422-B331-89466B0304DD}
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NatureServe Biotics 2019 |
9
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In the Santa Monica Mountains, California, this shrubland association occurs on gentle to steep northeast- and northwest-facing slopes at low elevations between 0 and 511 m. It is characterized by dominance in the shrub layer or the low-tree layer of <i>Sambucus nigra ssp. cerulea</i> and relatively high cover of the grass <i>Leymus condensatus</i> in the herbaceous layer. The emergent tree layer includes <i>Quercus agrifolia</i> and <i>Juglans californica</i>. |
Comm #1665
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Rubus armeniacus Semi-natural Association
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accession code: urn:lsid:vegbank.org/vegbranch:commConcept:28681-{89F6AC83-46AD-49BC-924F-CEF5C1BBC054}
NOT CURRENTLY ACCEPTED
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MCV2 |
9
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Comm #1666
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Eriodictyon californicum / herbaceous Association
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accession code: urn:lsid:vegbank.org/vegbranch:commConcept:28664-{96C72495-3BDE-46B1-986E-D4DDACA27754}
NOT CURRENTLY ACCEPTED
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MCV2 |
9
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Comm #1667
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Arctostaphylos viscida – Quercus wislizeni Association
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accession code: urn:lsid:vegbank.org/vegbranch:commConcept:28851-{5FCAC532-B95F-40AD-8E94-B61AB3D87782}
NOT CURRENTLY ACCEPTED
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Northern Sierra Nevada Foothills Report |
9
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Comm #1668
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Pinus palustris / Quercus geminata - Quercus hemisphaerica / Osmanthus americanus Woodland
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accession code: urn:lsid:vegbank.org:commConcept:32450-{C7BC7967-CB87-4B2D-A0FC-F602069E7651}
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NatureServe Biotics 2019 |
9
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This community occurs on xeric sands within several miles of the coast in southeastern North Carolina and northeastern South Carolina. The canopy is sparse and consists of <i>Pinus palustris</i> and <i>Pinus taeda</i> with a subcanopy/shrub layer of broad-leaved evergreen and semi-evergreen coastal fringe species. <i>Aristida stricta</i> sometimes dominates the herbaceous layer. |
Comm #1669
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Quercus virginiana - Quercus incana Woodland
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accession code: urn:lsid:vegbank.org:commConcept:32612-{55DE71FA-2484-4A79-9729-4DAE7E55BD32}
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NatureServe Biotics 2019 |
9
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This maritime woodland occurs primarily on back dunes that are somewhat protected from regular salt spray along the southeastern Virginia coast. Stands are codominated by <i>Quercus virginiana</i> and <i>Quercus incana</i>. Minor canopy species include <i>Pinus taeda, Sassafras albidum, Quercus nigra</i>, and <i>Prunus serotina var. serotina</i>. |
Comm #1670
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Pinus echinata - Quercus stellata - Quercus marilandica / Vaccinium pallidum Woodland
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accession code: urn:lsid:vegbank.org:commConcept:32625-{8EB1175A-6D18-496E-98C2-169C8AF93AD7}
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NatureServe Biotics 2019 |
9
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This shortleaf pine - oak woodland is known from low elevations in the Southern Blue Ridge Escarpment region, and probably extends into the adjacent southern Ridge and Valley, Cumberland Plateau, and Piedmont. This association is a woodland where <i>Pinus echinata, Quercus stellata</i>, and <i>Quercus marilandica</i> occur in the canopy, each contributing 25-75% to the total canopy coverage. Other species make up less than 25% of the total canopy cover and may include <i>Quercus falcata, Quercus coccinea, Carya pallida, Pinus rigida</i>, and <i>Pinus virginiana</i>. Shrub strata vary in composition and density, but <i>Vaccinium pallidum</i> and other ericaceous species such as <i>Vaccinium stamineum, Gaylussacia ursina, Gaylussacia baccata</i>, and <i>Kalmia latifolia</i> are typical. Herbs found in these woodlands include <i>Baptisia tinctoria, Chamaecrista fasciculata, Chamaecrista nictitans, Ceanothus americanus, Chrysopsis mariana, Clitoria mariana, Coreopsis tripteris, Crotalaria sagittalis, Desmodium rotundifolium, Saccharum giganteum, Euphorbia corollata, Helianthus atrorubens, Helianthus microcephalus, Pityopsis aspera var. adenolepis, Polygala verticillata, Rudbeckia hirta, Schizachyrium scoparium var. scoparium, Mimosa microphylla, Silphium compositum, Sorghastrum nutans, Stylosanthes biflora</i>, and <i>Tephrosia virginiana</i>. |
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