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Name
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Reference
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Plots↓
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Description |
Comm #6921
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Quercus (alba, coccinea, falcata, velutina) / Kalmia latifolia Temporarily Flooded Forest
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accession code: VB.CC.34928.CEGL004098
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Southeastern Ecology Working Gro... |
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This community consists of deciduous forests on terraces 1-3 m (3-10 feet) above the banks of medium-sized, high-energy rivers in the Cumberlands and Ridge and Valley regions of Alabama and possibly Tennessee. These forests are unusual in that they are flooded yearly, yet they retain a canopy dominated by oaks more common on drier slopes. Any combination of <i>Quercus alba, Quercus falcata, Quercus coccinea</i>, and <i>Quercus velutina</i> dominates along with more traditional bottomland tree species such as <i>Liriodendron tulipifera</i> and <i>Liquidambar styraciflua</i>. The shrub layer has at least 30% cover and tends to be dominated by <i>Kalmia latifolia</i> with other shrubs such as <i>Calycanthus floridus, Corylus cornuta, Hamamelis virginiana, Viburnum</i> spp., and others. The herbaceous stratum is sparse to moderate and contains <i>Chasmanthium sessiliflorum</i> (at least 10% cover). |
Comm #6922
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Muhlenbergia montana - Schizachyrium scoparium Herbaceous Vegetation
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accession code: VB.CC.31812.CEGL005381
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Western Ecology Working Group of... |
0
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This association is only known to occur at Bandelier National Monument in north-central New Mexico. The current description is based on data received from there and will be updated when additional inventory data are available. This mid-elevation association occurs on sites with moderate solar exposure (mostly northerly aspects). Stands generally occur on gently rolling mesatops (4-10%) and occasionally on moderately steep mesa toeslopes (25%). Soils are primarily mapped as well-developed Mollisols derived from rhyolitic tuff or pumice slope alluvium, or occasionally as fine-textured Alfisols derived from eolian deposits over rhyolitic tuff residuum. The ground surface is typically characterized by bunchgrasses with inter-grass spaces covered with leaf litter or some exposed soil. Elevation ranges between 2200 and 2360 m (7220-7740 feet). This montane grassland association is characterized by abundant to luxuriant growth of <i>Muhlenbergia montana</i> with <i>Schizachyrium scoparium</i> as a codominant. <i>Bouteloua gracilis</i> and <i>Andropogon gerardii</i> are also common associates. Total grass cover can approach 50%. Forbs are typically well-represented in these grasslands and most frequently include <i>Artemisia carruthii</i> and <i>Heterotheca villosa</i>. Among trees, scattered <i>Pinus ponderosa</i> saplings and mature trees can occur, but cover is less than 10%. Shrubs are also poorly represented, but <i>Quercus gambelii</i> and <i>Robinia neomexicana</i> may be common. |
Comm #6923
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CEGL003966
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accession code: VB.CC.5767.CEGL003966
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #6924
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CEGL007996
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accession code: VB.CC.7532.CEGL007996
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #6925
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CEGL008660
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accession code: VB.CC.7953.CEGL008660
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #6926
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Salix boothii Temporarily Flooded Shrubland Alliance
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accession code: VB.CC.18171.SALIXBOOTHIITEM
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Western Ecology Working Group of... |
0
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This widespread riparian shrubland alliance is found throughout the interior western U.S. between 1320-2800 m in elevation. Stands occur in valley bottoms, swales, streambanks, and occasionally terraces of stream channels in areas that have surface water present for only brief periods of time during the growing season, and are usually found within 1 m of the water table. Stands are also located adjacent to seeps on gently sloping toeslopes. The ground surface is often uneven and hummocky due to past flooding and beaver activity. The soils are variable and include highly stratified alluvium or fine-textured, highly organic soils. Shrublands within this alliance are dominated by Salix boothii with a canopy ranging from 20-80% cover. Salix geyeriana, Salix lemmonii, or Salix drummondiana may codominate. Other shrubs present include Dasiphora fruticosa ssp. floribunda (= Pentaphylloides floribunda) and Betula nana (= Betula glandulosa). A mixture of forbs and graminoids growing on raised hummocks characterizes the moderately dense herbaceous layer. Common forb and graminoid species include Swertia perennis, Pedicularis groenlandica, Polygonum bistortoides, Heracleum maximum (= Heracleum lanatum), Achillea millefolium, Carex aquatilis, Carex utriculata, and Calamagrostis canadensis. Diagnostic of this riparian alliance is a Salix boothii-dominated or -codominated tall shrubland that is flooded for brief periods during the growing season and has a shallow water table. |
Comm #6927
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Abies concolor - Pseudotsuga menziesii / Vaccinium myrtillus Forest
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accession code: VB.CC.26578.ABIESCONCOLORPS
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Western Ecology Working Group of... |
0
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Comm #6928
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North Pacific Shrub Swamp
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accession code: urn:lsid:ecoobs.vegbank.org:commConcept:8285-{71F187AB-2BC9-40D5-B426-3286B78CAC27}
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Comer et al. 2003 |
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Comm #6929
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Baccharis pilularis / Annual Grass-Herb Shrubland
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accession code: VB.CC.31902.CEGL003183
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Western Ecology Working Group of... |
0
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This shrubland association of northern to southern coastal California occurs on gentle valley bottoms to steep slopes with flat to variable aspect at low elevations between 1 and 568 m. It is characterized by the dominance of <i>Baccharis pilularis</i> in the shrub layer and a variety of non-native, largely annual grasses and herbs in the herbaceous layer. The herbaceous understory can be dominated by annual exotic grasses such as <i>Lolium perenne ssp. multiflorum (= Lolium multiflorum), Bromus hordeaceus, Bromus diandrus</i>, and <i>Avena barbata</i>, along with annual herbs such as <i>Raphanus sativus</i>. Other native herbaceous species include <i>Distichlis spicata,</i><i> Juncus </i>spp., <i>Muhlenbergia rigens</i>, and <i>Corethrogyne filaginifolia (= Lessingia filaginifolia)</i>. The emergent tree layer includes occasional ruderal trees such as <i>Schinus molle, Eucalyptus</i> spp., and <i>Phoenix canariensis</i>, as well as the native <i>Quercus agrifolia</i>. This association is indicative of a disturbed seral stage that typically comes following the reversion of cleared pastureland or non-native grassland back to shrubland. <i>Baccharis </i><i>pilularis</i> behaves similarly in other areas of northern California where it often forms the first wave of woody species to recolonize cleared land. |
Comm #6930
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Sagittaria latifolia Semipermanently Flooded Herbaceous Alliance
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accession code: VB.CC.19067.SAGITTARIALATIF
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Southeastern Ecology Working Gro... |
0
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This alliance consists of semipermanently flooded wetlands dominated by Sagittaria latifolia, often with other emergent aquatic species (such as Sagittaria longiloba in Oklahoma). Examples within the northern extent of this alliance can be codominated by Leersia oryzoides. This alliance can include areas of monospecific stands of either Sagittaria spp. or Leersia oryzoides, especially in areas along major waterways impacted by dams and/or impoundments. |
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