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Comm #13031
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Phleum pratense - Poa pratensis - Bromus inermis Ruderal Herbaceous Vegetation » more details
accession code: VB.CC.32228.CEGL005874
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Western Ecology Working Group of... |
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This association is a very common type of disturbed grassland and forest opening on the east side of Glacier National Park, within Waterton Lakes National Park, in the major valleys of Grand Teton National Park and on the Blackfeet Reservation. It is a mesic to dry association located mostly on flat to gentle toeslopes, lowslopes and valley bottoms at variable aspects, and can occur on moderately steep midslopes and on flat basin floors. Elevations range from 945 to 2250 m (3100-7300 feet). Soil texture is typically moderately well- to well-drained sandy loams, silt loams, poorly drained clay loams or sandy clay loams. These soils are also characterized as Orthic and Rego Black Chernozems and Orthic Humic Regosols within Waterton Lakes National Park. These are weakly to well-developed, medium- to coarse-textured soils that have developed on glacio-fluvial and morainal landforms that contain quartzite and argillite. Litter comprises 40-95% of the ground cover. The vegetation, dominated by both non-native grasses and native forbs, is a result of historic and current disturbance. Disturbance includes seeding of pasture grasses, light to intense grazing, and development of out buildings, corrals and housing. Typical herbaceous cover is 40-60%; however, cover can be as low as 20% or as high as 100%. <i>Phleum pratense</i> and <i>Poa pratensis</i>, both non-native grasses, dominate the vegetation, and <i>Bromus inermis</i> is occasionally abundant. Other common species include native forbs <i>Achillea millefolium, Potentilla gracilis, Galium boreale, Fragaria virginiana, Geranium viscosissimum, Perideridia gairdneri, Potentilla gracilis, Symphyotrichum laeve (= Aster laevis)</i>, and the exotic forb <i>Taraxacum officinale</i>. <i>Campanula rotundifolia, Cerastium arvense, Penstemon confertus, Lomatium triternatum</i>, and <i>Vicia americana</i> are often present. <i>Koeleria macrantha, Festuca campestris</i>, and <i>Festuca idahoensis</i> may be abundant within this association as well and may indicate this type's original composition in upland sites. Other herbaceous species that may have high cover include <i>Lupinus sericeus, Bromus carinatus, Lithospermum ruderale, Erigeron speciosus, Solidago missouriensis, Elymus repens, Monarda fistulosa, Cirsium arvense, Eurybia conspicua (= Aster conspicuus), Pseudoroegneria spicata, Hedysarum sulphurescens</i>, and <i>Hedysarum alpinum</i>. Shrub cover is low within this association, typically averaging <5%, but it can be as high as 15%. The most common shrubs, when they are present, include <i>Amelanchier alnifolia, Rosa woodsii</i>, and <i>Dasiphora fruticosa ssp. floribunda</i>. |
Comm #13032
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CEGL002396 » more details
accession code: VB.CC.4841.CEGL002396
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
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Comm #13033
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CEGL007895 » more details
accession code: VB.CC.7480.CEGL007895
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
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Comm #13034
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Populus angustifolia - Pinus ponderosa Woodland » more details
accession code: VB.CC.25146.POPULUSANGUSTIF
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Western Ecology Working Group of... |
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Comm #13035
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Vaccinium corymbosum - Gaylussacia baccata - Photinia melanocarpa / Calla palustris Shrubland » more details
accession code: VB.CC.21712.VACCINIUMCORYMB
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Midwestern Ecology Working Group... |
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This community is a weakly minerotrophic or perhaps ombrotrophic peatland dominated by tall, deciduous, ericaceous shrubs and peat mosses. The water is usually nutrient poor and acidic. The dominant shrub is usually Vaccinium corymbosum. Other associated shrubs include Photinia melanocarpa (= Aronia melanocarpa), Gaylussacia baccata, Ilex verticillata, and Nemopanthus mucronatus. Characteristic herbs include Calla palustris, Carex trisperma, Osmunda cinnamomea, Sarracenia purpurea, and Maianthemum trifolium (= Smilacina trifolia). Characteristic peat mosses include Sphagnum centrale, Sphagnum fimbriatum, Sphagnum magellanicum, and Sphagnum capillifolium (= Sphagnum nemoreum). Stunted trees, including Acer rubrum, may be present at a low density and less than 25% cover. |
Comm #13036
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Tripsacum dactyloides - Panicum virgatum - Sorghastrum nutans - Helianthus maximiliani Herbaceous Vegetation » more details
accession code: VB.CC.18482.TRIPSACUMDACTYL
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Southeastern Ecology Working Gro... |
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This tallgrass community of the Crosstimbers/Southern Tallgrass is dominated by Tripsacum dactyloides and Panicum virgatum occurring with Sorghastrum nutans, Carex microdonta, Schizachyrium scoparium, Sporobolus compositus, Paspalum floridanum, and Andropogon gerardii. Important forbs include Symphyotrichum ericoides (= Aster ericoides), Acacia angustissima var. hirta, Rudbeckia hirta, and Helianthus maximiliani. This community occurs on poorly drained or subirrigated soils and flat topography on the Blackland and Fayette prairie regions of Texas. Similar communities may exist as small patches in Oklahoma and Kansas. Gilgai microtopography, with circular depressions and ridges, is characteristic of this community where it occurs over Vertisols. |
Comm #13037
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IV.B.3 » more details
accession code: VB.CC.200.IVB3
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EcoArt 2002 |
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Comm #13038
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Alnus oblongifolia / Leersia oryzoides Forest » more details
accession code: VB.CC.32090.CEGL005945
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Western Ecology Working Group of... |
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This lower-montane riparian association is known from the Gila River watershed and probably elsewhere in southwestern New Mexico at elevations from 1680 to 1740 m (5520-5720 feet) elevation, but it likely ranges from 1500 to 2200 m. Stands are known to occur on sidebars of moderate-gradient streams where flooding frequently occurs. Soils are reported as unconsolidated riverwash and weakly developed sandy-skeletal Mollic Fluvaquents. A closed canopy of <i>Alnus oblongifolia</i> and a highly diverse but variable mix of forbs and graminoids characterize this community (53 species have been reported for the type). Shrubs are generally poorly represented, although <i>Amorpha fruticosa</i> can be common. <i>Leersia oryzoides</i>, a wetland indicator species, is abundant and dominates the grassy undergrowth. Twenty herbaceous wetland indicator species have been reported for the type; <i>Carex aquatilis, Equisetum arvense, Rudbeckia laciniata</i>, and <i>Mentha arvensis</i> are usually present and well-represented to abundant. The exotic <i>Agrostis stolonifera, Lolium pratense (= Festuca pratensis)</i>, and <i>Melilotus officinalis</i> can also be abundant. |
Comm #13039
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Stuckenia pectinata - Zannichellia palustris Permanently Flooded - Tidal Herbaceous Alliance » more details
accession code: VB.CC.18923.STUCKENIAPECTIN
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Eastern Ecology Working Group of... |
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This alliance includes shallow subtidal fresh/brackish water and sediments exposed at extreme low tide. It supports a predominance of vascular aquatics such as Stuckenia pectinata (= Potamogeton pectinatus), Potamogeton perfoliatus, Vallisneria americana, Elodea nuttallii, and Zannichellia palustris, and occasionally Ruppia maritima as salinity begins to increase. Communities in this alliance occur in maritime coastal areas from Virginia north to Connecticut and in Louisiana and possibly Texas. |
Comm #13040
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CEGL003427 » more details
accession code: VB.CC.5477.CEGL003427
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
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