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Name
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Reference
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Description |
Comm #11501
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Bouteloua hirsuta - Digitaria californica Herbaceous Vegetation
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accession code: VB.CC.34248.CEGL001767
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Western Ecology Working Group of... |
0
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Comm #11502
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Nuphar polysepala Herbaceous Vegetation
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accession code: VB.CC.31800.CEGL002001
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Western Ecology Working Group of... |
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This association is composed of floating aquatic vegetation. It occurs on permanently flooded ponds, lakes, deeper beaver ponds, and glacial kettle lakes, from sea level to 2410 m (7900 feet) in elevation. Soils are usually organic Histosols, on anoxic muck or peat. Water depths range from 40 to 200 cm (1.25-6.5 feet). Stands have been observed where water levels fluctuate seasonally, leaving <i>Nuphar</i> high and dry on exposed mudflats, especially in drought years. Stands can completely fill smaller ponds, or occurrences may be only as large as the water depth allows, and are part of a larger mosaic of other freshwater emergent marsh communities. <i>Nuphar polysepala (= Nuphar lutea ssp. polysepala; = Nuphar polysepalum) </i>is often the only species present. Cover is continuous, intermittent, or open. Other aquatic and emergent herbs present may include <i>Menyanthes</i> spp., <i>Potamogeton</i> spp., <i>Glyceria</i> spp., <i>Eleocharis</i> spp., <i>Carex</i> spp., <i>Equisetum</i> spp., <i>Typha</i> spp., and <i>Lemna</i> spp. Many of these associates are in shallower, adjacent water. |
Comm #11503
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Picea mariana - Populus tremuloides - Betula papyrifera / Pleurozium schreberi Forest
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accession code: VB.CC.37228.CEGL002517
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Sims, R. A., W. D. Towill, K. A.... |
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Comm #11504
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CEGL003447
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accession code: VB.CC.5497.CEGL003447
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #11505
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A.2596
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accession code: VB.CC.1865.A2596
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #11506
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Myriophyllum sibiricum Herbaceous Vegetation
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accession code: VB.CC.31454.CEGL002000
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Johnson, K. R. 1939. Plant ecolo... |
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This association has been described from Colorado mountain lakes and ponds, and from the low-elevation Rocky Mountain Front of Alberta in Waterton Lakes National Park. In Colorado it occurs at roughly 2539 m (8300 feet) elevation, while in Alberta it was found from 1280 to 1290 m (4200-4230 feet). This association occurs in small ponds supporting submerged aquatic vegetation, typically less than 200 m2. Depths for most ponds are estimated to be from 1-2 m in the deepest portion. The total cover value for <i>Myriophyllum sibiricum</i> may be as little as 5%, but more typically it falls in the 40-80% range. Water can be quite saline and the plants heavily encrusted with lime salts. Ponds typically have concentric rings, or zones of vegetation, <i>Myriophyllum sibiricum</i> occupying the deepest portion of relatively shallow ponds. Concentric zones include bands of <i>Schoenoplectus tabernaemontani (= Scirpus validus), Carex</i> spp., and <i>Salix</i> spp. |
Comm #11507
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Stuckenia pectinata - Ruppia maritima Herbaceous Vegetation
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accession code: VB.CC.32494.CEGL002004
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Western Ecology Working Group of... |
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This community is found in the northern Great Plains and tallgrass prairie regions in brackish to saline shallow water wetlands or exposed alkali salt flats. These wetlands maintain surface water for a period of a few weeks or more during the growing season. A high evaporation-precipitation ratio contributes to the concentration of dissolved salts in these wetlands. The high salinity of these wetlands excludes many plant species. <i>Stuckenia pectinata (= Potamogeton pectinatus)</i> and <i>Ruppia maritima</i> frequently form dense beds of floating and submerged vegetation. Other species may include <i>Zannichellia palustris, Stuckenia vaginata (= Potamogeton vaginatus)</i>, and <i>Chara</i> spp. Within some wetlands with extremely high salinity, <i>Ruppia maritima</i> may be the only species found. |
Comm #11508
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Typha (latifolia, angustifolia) Western Herbaceous Vegetation
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accession code: VB.CC.32199.CEGL002010
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Western Ecology Working Group of... |
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This association is widespread across the western United States and western Great Plains occurring near streams, rivers, and ponds. The soil is flooded or saturated for at least part of the growing season. The alluvial soils have variable textures ranging from sand to clay and usually with a high organic content. The dominant species, <i>Typha latifolia</i> or <i>Typha angustifolia</i>, often forms dense, almost monotypic stands. Other species typical of wetlands may be found in lesser amounts in this community; among these are shallower water emergents such as <i>Carex</i> spp., <i>Eleocharis macrostachya, Eleocharis palustris, Glyceria</i> spp., <i>Juncus balticus, Juncus torreyi, Mentha arvensis, Schoenoplectus acutus</i>, and <i>Veronica</i> spp. In deeper water, <i>Lemna minor, Potamogeton</i> spp., <i>Sagittaria</i> spp., <i>Azolla filiculoides</i>, and other aquatics may be present in trace amounts. |
Comm #11509
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Quercus alba - (Quercus velutina) - Carya ovata / Ostrya virginiana Forest
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accession code: VB.CC.36797.CEGL002011
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Midwestern Ecology Working Group... |
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This oak - hickory forest community is found in the western tallgrass prairie region of the central midwestern United States. It is a dry-mesic deciduous forest community found on gentle to moderately steep slopes on uplands and on steep valley sides. The soils are moderately deep to deep and vary from silts to clays to loams. The parent material is glacial till, limestone, shale, or sandstone. This community has a tall tree canopy with little or no subcanopy. The shrub and herbaceous strata are well-developed. The most abundant tree species are <i>Quercus alba, Quercus rubra, Quercus velutina, Carya ovata, Carya cordiformis</i>, and <i>Tilia americana</i>. The shrubs in this community rarely exceed 2 m. They include <i>Symphoricarpos orbiculatus, Amelanchier alnifolia, Cercis canadensis, Cornus drummondii</i>, and <i>Ribes</i> spp. Species typically in the herbaceous layer are <i>Aquilegia canadensis, Dicentra cucullaria, Laportea canadensis</i>, and <i>Verbena urticifolia</i>. The tree layer of this community is more open near the tops of the bluffs on which it occurs. Shrubs are often dense in these areas. In Oklahoma, this forest is described as occurring in moist soils of floodplains and mesic slopes, rare and localized in five eastern tier counties (Adair, Cherokee, Delaware, LeFlore, and Sequoyah). Characteristic species include <i>Acer saccharum, Asimina triloba, Carya alba, Carya ovata, Cornus florida, Lindera benzoin, Ostrya virginiana, Quercus shumardii</i>, and <i>Quercus velutina</i>. |
Comm #11510
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Glaux maritima Herbaceous Vegetation
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accession code: VB.CC.33780.CEGL003286
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Western Ecology Working Group of... |
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