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Name
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Reference
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Plots↓
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Description |
Comm #12181
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Carex echinata - Deschampsia nubigena Semipermanently Flooded Herbaceous Alliance
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accession code: VB.CC.22055.CAREXECHINATADE
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Western Ecology Working Group of... |
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Comm #12182
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Picea pungens / Mahonia repens Forest
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accession code: VB.CC.18988.PICEAPUNGENSMAH
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Western Ecology Working Group of... |
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Comm #12183
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Abies grandis - Thuja plicata / Achlys triphylla Forest
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accession code: VB.CC.21212.ABIESGRANDISTHU
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Western Ecology Working Group of... |
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This is a conifer forest association with a rich forb undergrowth. It is located near stream bottoms in the eastern Cascades near the Columbia River gorge. These sites are generally found between 2400-3300 feet and sites are generally free of prolonged snow accumulation. The existing vegetation is characterized by Pseudotsuga menziesii and Abies grandis trees codominating the tree canopy, with Thuja plicata also frequent in the canopy and in regeneration layers. The shrub layer is fairly sparse with patches of tall Acer circinatum and shorter Rosa gymnocarpa, Mahonia nervosa and Symphoricarpos mollis. The herbaceous layer is patchy with Trientalis borealis ssp. latifolia (= Trientalis latifolia), Achlys triphylla and other moist forest forbs. |
Comm #12184
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CEGL001156
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accession code: VB.CC.3755.CEGL001156
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
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Comm #12185
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CEGL000153
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accession code: VB.CC.2779.CEGL000153
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
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Comm #12186
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Sandstone Interior Highlands Talus Sparse Vegetation
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accession code: VB.CC.36812.CEGL002309
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Midwestern Ecology Working Group... |
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This sandstone talus community is found in the Ozark and Ouachita regions of the United States. Stands occur at the bases of steep cliffs along larger streams or rivers, or strongly dissected valleys. Aspect is variable, and they can be relatively moist or relatively dry. Soils are generally absent. Parent material is sandstone with a mixture of rock fragments and large boulders. The vegetation is generally sparse but may vary depending on degree of slope, exposure (open versus shaded) and rock type. The composition of the type may be heavily influenced by adjacent forested stands. Vascular plants are generally very sparse, absent, or limited to marginal areas. Vines and viney shrubs are characteristic of this community (at least its margins), because their habit allows them to exploit the combination of abundant available light and scarce rooting opportunities. Characteristic vines and shrubs can include <i>Ribes</i> spp., <i>Toxicodendron radicans, Parthenocissus quinquefolia</i>, and <i>Philadelphus pubescens</i>. Characteristic herbaceous species can include the annual composite <i>Polymnia canadensis</i> and the ferns <i>Dryopteris marginalis</i> and <i>Polypodium virginianum</i>. <i>Sassafras albidum</i> seems to be a particularly characteristic tree species of the margins of this community; <i>Cornus alternifolia</i> is also reported from Missouri occurrences. Foliose, crustose, and umbilicate lichens are common. |
Comm #12187
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River Mudflats Sparse Vegetation
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accession code: VB.CC.36732.CEGL002314
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Midwestern Ecology Working Group... |
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This river mudflats community is found throughout the upper and central midwestern region of the United States and adjacent Canada, and probably more widely. It extends south at least as far as the Ozarks and Ouachitas of Arkansas. Stands occur in riverine areas that flood in the spring, but dry out later in the season, exposing wet, muddy sediments on which plant species subsequently grow. Substrates include silt and clay. The composition and structure of the vegetation are influenced by the flooding regime. Vegetation of this type has not been characterized. Stands in south-central Illinois and east-central Missouri contain the characteristic, and rare, <i>Boltonia decurrens</i>. |
Comm #12188
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Carex lasiocarpa - Carex buxbaumii - Trichophorum caespitosum Boreal Herbaceous Vegetation
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accession code: VB.CC.25416.CAREXLASIOCARPA
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Midwestern Ecology Working Group... |
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This rich graminoid fen type is found in the northern Great Lakes region of the United States and Canada, and elsewhere in central Canada. Stands are found in peatlands with moderate exposure to mineral-rich groundwater including wet, floating mats of basin fens, shores above the level of seasonal flooding, and larger peatlands. Substrate is saturated fibric to mesic peat. Vegetation is typically dominated by graminoids and Sphagnum spp. with low cover of ericaceous shrubs on the hummocks and a very scattered tree layer of Picea mariana, Larix laricina, and occasional Thuja occidentalis. Microtopography can consist of wet hollows with scattered low to intermediate hummocks. The graminoid layer is dominated by Carex lasiocarpa, Carex limosa, Carex livida, Rhynchospora alba, and Trichophorum caespitosum (= Scirpus cespitosus). Other associated graminoids may include Carex exilis and Trichophorum alpinum (= Scirpus hudsonianus). Typical herbs include Drosera rotundifolia, Drosera intermedia, Equisetum fluviatile, Menyanthes trifoliata, Sarracenia purpurea, and Scheuchzeria palustris. The ericaceous shrubs include Andromeda polifolia, Betula pumila, Chamaedaphne calyculata, and Vaccinium oxycoccos. Mosses include the brown mosses, such as Campylium stellatum. Diagnostic features include the presence of many minerotrophic indicators and graminoid dominance. |
Comm #12189
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Pseudotsuga menziesii / Pleurozium schreberi - Hylocomium splendens Forest
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accession code: VB.CC.37295.CEGL002316
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BCMFRB [British Columbia Ministr... |
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This small- to medium-patch, forested association is restricted to the Montane Cordillera ecoregion of central interior British Columbia, primarily on the Fraser Plateau, along the Chilcotin and Fraser river valleys where it is relatively common. It also occurs sporadically on steep warm slopes, crests or ridges in the northwestern extent of its range. It is generally found on either sandy or loamy soils, sometimes with abundant coarse fragments, on dry to very dry, nutrient-poor to medium sites. The forest canopy is relatively closed and dominated by <i>Pseudotsuga menziesii</i> with a few <i>Pinus contorta var. latifolia</i> or <i>Picea engelmannii x glauca</i>. <i>Pseudotsuga menziesii</i> regeneration is often dense. On sites with warm aspects or shallow soils, the canopy will be more open. Shrubs are scarce but may include <i>Spiraea betulifolia, Shepherdia canadensis</i>, and <i>Rosa acicularis</i>. The undergrowth is strongly dominated by mosses such as <i>Hylocomium splendens</i> and <i>Pleurozium schreberi</i> and typically has few vascular plants including scattered <i>Eurybia conspicua, Calamagrostis rubescens, Galium boreale</i>, and <i>Prosartes trachycarpa (= Disporum trachycarpum)</i> with <i>Pseudoroegneria spicata</i> in southern portions of its range, and <i>Linnaea borealis</i> in northern portions of its range. <i>Calamagrostis rubescens</i> also tends to drop out in the northern range. |
Comm #12190
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CEGL002184
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accession code: VB.CC.4708.CEGL002184
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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