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Description |
Comm #12551
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Acer rubrum (var. drummondii) - Nyssa spp. - Liquidambar styraciflua - Quercus nigra / Osmunda spp. Saturated Forest
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accession code: VB.CC.34849.CEGL007982
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Southeastern Ecology Working Gro... |
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This community develops at the base of sloped terraces, on the edges of floodplain terraces, on the floodplain-upland margin, on the edges of large mima mounds, and in an attenuated fashion along floodplain drainages on the Upper West Gulf Coastal Plain of southern Arkansas, adjacent Oklahoma, and possibly adjacent Louisiana. Canopy structure is variable but usually different to surrounding forest due to common tree falls. The canopy is usually shorter, often shrubby, and frequently relatively open with few large trees. The soil is saturated or the water table near the surface throughout the year. The soils are shallow mucks with a relatively deep organic layer. These seeps would be subject to fire depending on topographic locations under historic conditions. All known examples are fire-suppressed. Examples of this community are known from Big Cypress Unique Area, Lorance Creek Natural Area, Moro Bottoms Natural Area, and Pine Bluff Arsenal Old Growth Area. This community is known from Cleveland, Dallas, Jefferson, and Saline counties, Arkansas. The type location is in Dallas County, Arkansas. These seeps are likely found throughout the Ouachita River Basin. <i>Acer rubrum</i>, not always identifiable to <i>var. drummondii</i>, is always present, although it does not always dominate (or even reach) the canopy. The overstory is highly variable but usually includes some combination of the following: <i>Ilex opaca, Liquidambar styraciflua</i> (common), <i>Nyssa biflora</i> (sporadic distribution), <i>Nyssa sylvatica, Quercus nigra</i>, and <i>Quercus phellos</i>. The understory often includes <i>Carpinus caroliniana</i> and saplings of the overstory trees. The shrub layer is diverse and can include <i>Cornus obliqua (= Cornus amomum ssp. obliqua), Crataegus marshallii, Hamamelis virginiana, Itea virginica, Styrax grandifolius, Vaccinium arboreum, Vaccinium fuscatum</i>, and <i>Viburnum</i> sp. Woody vines are common and may include <i>Berchemia scandens, Smilax bona-nox, Smilax rotundifolia</i>, and <i>Vitis rotundifolia</i>. <i>Osmunda cinnamomea</i> and <i>Osmunda regalis</i> usually dominate the herbaceous layer and are indicative of seep conditions. Other ferns usually include <i>Athyrium filix-femina ssp. asplenioides, Onoclea sensibilis, Pteridium aquilinum</i>, and <i>Woodwardia areolata</i>. Other herbaceous species may include <i>Carex debilis, Carex intumescens, Carex louisianica, Chasmanthium sessiliflorum, Commelina virginica, Hypericum hypericoides</i>, and <i>Saururus cernuus</i>. <i>Sphagnum</i> sp. is the ground cover. The herbaceous layer is dense even under low light conditions. |
Comm #12552
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Abies amabilis / Vaccinium membranaceum Forest
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accession code: VB.CC.34200.CEGL000235
NOT CURRENTLY ACCEPTED
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Western Ecology Working Group of... |
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Comm #12553
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Nuphar sagittifolia Herbaceous Vegetation
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accession code: VB.CC.34804.CEGL004328
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Southeastern Ecology Working Gro... |
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This association consists of beds of the floating-leaved or submersed aquatic <i>Nuphar sagittifolia (= Nuphar lutea ssp. sagittifolia)</i>. This vegetation is found in 30-150 cm deep waters of blackwater rivers, streams, and lakes, sometimes extending downstream into slightly tidal reaches of blackwater rivers. In rivers and streams, <i>Nuphar sagittifolia</i> is usually monospecific. In the only known lake occurrence (Lake Waccamaw, Columbus County, North Carolina), <i>Nuphar sagittifolia</i> is the dominant species, but other floating and submersed aquatics are present. This vegetation is associated with the acidic and tea-colored waters of blackwater systems. |
Comm #12554
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Ruppia maritima Carolinian Zone Herbaceous Vegetation
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accession code: VB.CC.35227.CEGL004335
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Southeastern Ecology Working Gro... |
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This association represents submerged beds of <i>Ruppia maritima</i> along the Atlantic Coast ranging from approximately Cape Hatteras, North Carolina, to Cape Canaveral, Florida. This geographic area represents the Carolinian Zone of Cowardin et al. (1979). These rooted aquatic beds occur in brackish waters. |
Comm #12555
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III.A.5
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accession code: VB.CC.240.IIIA5
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EcoArt 2002 |
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Comm #12556
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CEGL007810
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accession code: VB.CC.7404.CEGL007810
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
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Comm #12557
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CEGL000225
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accession code: VB.CC.2851.CEGL000225
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
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Comm #12558
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Schizachyrium scoparium - Sorghastrum nutans - Paspalum plicatulum - Carex microdonta - Neptunia lutea Vertisol Herbaceous Vegetation
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accession code: VB.CC.35452.CEGL004519
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Southeastern Ecology Working Gro... |
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This community occurs on upland Vertisols of the Beaumont and Lissie formations in the Upper and Lower Coastal Prairie of Texas. The dominant and characteristic species are <i>Schizachyrium scoparium var. scoparium, Sorghastrum nutans, Paspalum plicatulum, Paspalum floridanum, Panicum virgatum</i>, and <i>Fimbristylis puberula</i>. Other characteristic species are <i>Carex microdonta, Neptunia lutea, Liatris</i> spp., <i>Aristida purpurascens, Rhynchospora</i> spp., <i>Sporobolus compositus (= Sporobolus asper), Tridens strictus, Symphyotrichum ericoides (= Aster ericoides)</i>, and <i>Muhlenbergia capillaris</i>. |
Comm #12559
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Juniperus osteosperma / Hesperostipa neomexicana Woodland
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accession code: VB.CC.19906.JUNIPERUSOSTEOS
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Western Ecology Working Group of... |
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Comm #12560
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Sequoiadendron giganteum - Pinus lambertiana / Cornus nuttallii Forest
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accession code: VB.CC.21484.SEQUOIADENDRONG
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Western Ecology Working Group of... |
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