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Name
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Reference
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Description |
Comm #11581
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Populus tremuloides - Populus balsamifera / Calamagrostis canadensis - Spartina pectinata Forest
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accession code: VB.CC.36893.CEGL002097
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Midwestern Ecology Working Group... |
0
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This lowland aspen forest is found in the aspen parkland region of the United States (Minnesota and North Dakota) and the prairie provinces of Canada. Stands occur on wet, poorly drained soils with high water tables. The tree canopy is most often dominated by <i>Populus tremuloides</i>. <i>Populus balsamifera</i> is a component of most stands and may be codominant on the wettest sites. Other less constant associates include <i>Fraxinus pennsylvanica, Quercus macrocarpa</i>, or <i>Ulmus americana</i>. The abundance of the shrub and herb layers varies, depending on moisture. Generally, <i>Amelanchier</i> spp., <i>Cornus sericea, Cornus racemosa (= Cornus foemina ssp. racemosa)</i>, and <i>Corylus americana</i> are almost always present, the latter preferring somewhat drier conditions. Short shrubs include <i>Rosa blanda</i> and <i>Rosa acicularis</i>. Characteristic herbaceous species include <i>Aralia nudicaulis, Calamagrostis canadensis, Carex pensylvanica, Maianthemum stellatum (= Smilacina stellata), Fragaria virginiana, Galium boreale, Sanicula marilandica, Thalictrum dasycarpum, Rubus pubescens</i>, and <i>Solidago canadensis</i>. |
Comm #11582
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CEGL002035
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accession code: VB.CC.4582.CEGL002035
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #11583
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CEGL002036
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accession code: VB.CC.4583.CEGL002036
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #11584
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CEGL002038
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accession code: VB.CC.4585.CEGL002038
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #11585
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Quercus palustris - (Quercus stellata) - Quercus pagoda / Isoetes spp. Forest
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accession code: VB.CC.36864.CEGL002101
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Midwestern Ecology Working Group... |
0
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This pin oak - cherrybark oak bottomland or flatwoods forest community type is found in the central United States, principally in the Ohio and Mississippi River plains and tributaries. Stands occur on poorly drained terrace flats that are seasonally wet (mostly during winter and early spring and dry in late summer and early fall). Soils are slowly to very slowly permeable due to a high clay content or the presence of a fragipan. This results in a shallow, perched water table during the rainy season (winter and spring) and dry conditions during the summer and fall. Soils are silt loam to silty clay loam, deep, heavy, strongly acidic (pH 5.1-5.5), and poorly drained. Dominant canopy species are <i>Quercus palustris</i> and <i>Quercus pagoda</i>. Other trees often encountered include <i>Ulmus americana, Fraxinus</i> spp., <i>Liquidambar styraciflua, Quercus shumardii</i>, and <i>Quercus stellata</i>. Severe floods due to dams may have eliminated <i>Quercus stellata</i> from most occurrences of this community. <i>Quercus bicolor</i> can be plentiful in northern extensions of this association, while <i>Quercus texana</i> is commonly found in southern occurrences. The subcanopy is sparse and dominated by <i>Acer rubrum</i>, although a diverse mixture of bottomland species can be present as well. <i>Ilex decidua</i> and <i>Crataegus viridis</i> dominate the shrub layer. <i>Carex</i> spp. dominate the herbaceous layer, but a diverse mixture of forbs can also be present. <i>Pycnanthemum tenuifolium</i>, an herbaceous species more commonly associated with dry uplands, reflects the dry conditions seasonally found in this forest. <i>Campsis radicans</i> and <i>Toxicodendron radicans</i> dominate the vine stratum. <i>Isoetes</i> spp., characteristic of this community, are found often in the shallow pools. As with other flatwood forests, vegetation density and diversity are largely regulated by the duration and depth of seasonal flooding and summer drought. |
Comm #11586
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Schizachyrium scoparium - Sorghastrum nutans - Danthonia spicata - Silene regia Chert Herbaceous Vegetation
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accession code: VB.CC.36811.CEGL002211
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Midwestern Ecology Working Group... |
0
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This bluestem chert prairie community is found in the United States in central and southwestern Missouri, as well as the Ozark Ecoregion of Arkansas. Stands occur on hills and plains on gentle to steep slopes and ridges. The soil is well-drained to somewhat rapidly drained and very shallow to shallow (0-40 cm). The parent material is chert or chert residuum. Chert fragments are common on the surface. The vegetation structure is a midgrass prairie composed of a single layer of dominant graminoids intermixed with abundant forbs. The dominant grasses are <i>Andropogon virginicus, Schizachyrium scoparium</i>, and <i>Sorghastrum nutans</i>. Other typical plants found in this community are <i>Callirhoe digitata, Danthonia spicata, Helianthus occidentalis, Monarda russeliana, Silene regia, Isolepis carinata (= Scirpus koilolepis)</i>, and <i>Vernonia arkansana</i>. |
Comm #11587
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Pinus caribaea var. bahamensis / Sabal palmetto Woodland
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accession code: VB.CC.36490.CEGL007629
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Areces-Mallea, A. E., A. S. Weak... |
0
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Pine woodlands of <i>Pinus caribaea var. bahamensis</i>, associated to <i>Sabal palmetto</i> on typically honeycombed limestone strata. DISTRIBUTION: Bahamas: Grand Bahama, Abaco, New Providence, Andros. |
Comm #11588
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Cardamine cordifolia - Mertensia ciliata - Senecio triangularis Herbaceous Vegetation
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accession code: VB.CC.31965.CEGL002662
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Western Ecology Working Group of... |
0
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This southern Rocky Mountain association occurs in alpine and subalpine wetlands from 2700-3800 m (9000-12,300 feet) elevation. The generally small stands of this plant association are found in and near running water of small streams, seeps and springs. This association typically occurs along moderately steep to very steep first-order streams. In many cases this habitat probably experiences a long period of snow cover. Substrates are moderately deep (40 cm) sandy clay loam and sand-textured soils but, in general, are quite thin and skeletal. Associated taxa may vary greatly with this plant association, but the dominance of <i>Cardamine cordifolia, Mertensia ciliata</i>, and/or <i>Senecio triangularis</i> is clear. All of these species may be present or only one of the three. |
Comm #11589
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Betula papyrifera / Corylus cornuta Woodland
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accession code: VB.CC.37122.CEGL002128
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Midwestern Ecology Working Group... |
0
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This paper birch / beaked hazelnut woodland is found in the northern Great Plains of the United States and Canada. Stands occur on slopes or rolling topography. In the southwest of its range, in the Killdeer Mountains of North Dakota, it is restricted to the top of steep north-facing slopes. In other parts of its range, it occurs on a variety of aspects. The overstory of this woodland community is dominated by <i>Betula papyrifera</i>. Other associates include <i>Populus tremuloides, Quercus macrocarpa</i>, and, less frequently, <i>Fraxinus pennsylvanica</i>. There is a vigorous shrub layer that is typically 1-2 m tall. <i>Corylus cornuta</i> is the most abundant species in this stratum. Other typical species include <i>Symphoricarpos occidentalis, Prunus virginiana</i>, and <i>Rosa woodsii</i>. The herbaceous layer has several species with northern affinities, such as <i>Galium boreale, Aralia nudicaulis, Clematis occidentalis, Cornus canadensis, Maianthemum canadense, Pyrola elliptica</i>, and <i>Linnaea borealis</i>. Graminoid species do not usually contribute substantially to the herbaceous layer. |
Comm #11590
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Pseudotsuga menziesii / Muhlenbergia virescens Forest
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accession code: VB.CC.33323.CEGL000444
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Western Ecology Working Group of... |
0
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