| Add/Drop |
Name
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Reference
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Plots↓
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Description |
Comm #5851
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CEGL008040
» more details
accession code: VB.CC.7575.CEGL008040
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #5852
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CEGL002735
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accession code: VB.CC.5123.CEGL002735
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #5853
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Picea mariana Saturated Forest Alliance
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accession code: VB.CC.17883.PICEAMARIANASAT
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Eastern Ecology Working Group of... |
0
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This alliance, found in the Great Lakes region and northeastern United States, may be best described as a swamp forest. It is dominated by Picea mariana with other canopy associates including Abies balsamea, Larix laricina, Betula papyrifera, Picea glauca (in the northwest of this alliance's range) and Thuja occidentalis (in the northeast and west). Most stands of this alliance have a well-developed shrub layer, but some have only a sparse shrub component. Most of the shrubs are ericaceous species such as Chamaedaphne calyculata, Kalmia angustifolia, Ledum groenlandicum (in the west), Linnaea borealis, Rhododendron canadense (in the east), Gaylussacia baccata (in the east), and Vaccinium spp., as well as Nemopanthus mucronatus. Alnus incana, Betula pumila, and Thuja occidentalis occur in more minerotrophic communities. Herbs include Drosera spp., Sarracenia purpurea, Eriophorum spp., Carex trisperma, and Trillium undulatum. Nonvascular species are abundant on the forest floor. Sphagnum spp. are ubiquitous, feathermosses are common on nutrient-poor sites in the west, and Aulacomnium palustre is more characteristic of minerotrophic communities in the east. The habitat of this alliance is characterized by poorly drained mineral soils in the northeastern part of its range, but is largely confined to deep peats and minerotrophic peatland margins to the south. The peats and groundwater are acidic and vary from nutrient-poor to moderately rich. Most stands are on level ground but some are on gentle lower slopes adjacent to wetlands. |
Comm #5854
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Ceratophyllum demersum - Utricularia macrorhiza - Nymphaea odorata Herbaceous Vegetation
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accession code: VB.CC.21234.CERATOPHYLLUMDE
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Southeastern Ecology Working Gro... |
0
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Wind-tidally flooded floating/submergent wetlands of fresh to oligohaline, river-basin guts and large pools. This community is dominated (or codominated) by Ceratophyllum demersum. Other abundant species can include Utricularia macrorhiza and Nymphaea odorata. Other species include Elodea nuttallii, Spirodela polyrrhiza, Wolffiella gladiata, Lemna spp., and Utricularia purpurea. |
Comm #5855
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Colocasia esculenta - Cyperus spp. Herbaceous Vegetation
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accession code: VB.CC.36138.CEGL004898
NOT CURRENTLY ACCEPTED
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Southeastern Ecology Working Gro... |
0
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This vegetation occurs in disturbed wetland areas. Stands are dominated by <i>Colocasia esculenta</i>, with <i>Cyperus</i> spp. |
Comm #5856
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CEGL003418
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accession code: VB.CC.5468.CEGL003418
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #5857
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Pinus contorta var. murrayana / Ligusticum grayi Forest
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accession code: VB.CC.19942.PINUSCONTORTAVA
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Western Ecology Working Group of... |
0
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Comm #5858
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Quercus macrocarpa / Andropogon gerardii - Panicum virgatum Woodland
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accession code: VB.CC.20308.QUERCUSMACROCAR
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Midwestern Ecology Working Group... |
0
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This bur oak woodland occurs in the central-western tallgrass prairie region of the United States. Stands occur in river valleys, where soils are deep, fertile, relatively mesic, and with a significant silt component. Drought is common in this community but the sheltered position in the valleys and the presence of a watercourse ameliorate the effects somewhat. The overstory of this community is dominated by short to moderately tall fire-resistant, deciduous trees. In Nebraska, the typical overstory was historically dominated by Quercus macrocarpa. Currently, in the absence of fire typical associates include Carya illinoinensis, Celtis occidentalis, Fraxinus pennsylvanica, Juglans nigra, Juniperus virginiana, Quercus macrocarpa, and Ulmus spp. There is often a short-shrub layer, but it is rarely extensive. Symphoricarpos orbiculatus and small trees make up this layer. The understory is composed of a mixture of woodland and grassland species, including Andropogon gerardii, Panicum virgatum, and Spartina pectinata. |
Comm #5859
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Purshia tridentata - Artemisia tridentata / Achnatherum hymenoides Shrubland
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accession code: VB.CC.32985.CEGL003478
NOT CURRENTLY ACCEPTED
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Western Ecology Working Group of... |
0
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This shrubland association is currently only known from Yosemite National Park in California, and the following description is based on occurrences there. Additional information will be added as it becomes available. Stands of this association are found between 1980 and 2380 m (6500-7800 feet) elevation on northeast to southeast aspects. Slopes vary from flat to somewhat steep, and stands prefer lower slope positions. Soils are sand to sandy loam, usually derived from granitic rock. This vegetation is characterized by an open to intermittent short-shrub canopy between 0.5-1 m in height. <i>Artemisia tridentata</i> and <i>Purshia tridentata</i> codominate, with trace amounts of <i>Chrysothamnus viscidiflorus</i> and <i>Prunus andersonii</i> often present. The herbaceous layer is sparse and dominated by graminoids. <i>Achnatherum hymenoides</i> is characteristic. Two forbs, <i>Gayophytum ramosissimum</i> and <i>Lupinus argenteus</i>, are often present in trace amounts. <i>Bromus tectorum</i> (exotic) is the most common graminoid. Other common graminoids in order of declining importance include <i>Elymus elymoides, Leymus cinereus</i>, and/or <i>Achnatherum speciosum</i>. |
Comm #5860
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CEGL006606
» more details
accession code: VB.CC.6922.CEGL006606
NOT CURRENTLY ACCEPTED
|
EcoArt 2002 |
0
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