| Add/Drop |
Name
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Reference
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Plots↓
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Description |
Comm #10671
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CEGL004653
» more details
accession code: VB.CC.6178.CEGL004653
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #10672
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Tsuga mertensiana / Sparse Understory Forest
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accession code: VB.CC.32358.CEGL008685
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Western Ecology Working Group of... |
0
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Stands of this forest are found throughout the Sierra Nevada, however, predominantly north of the Kings River. This association is found at mid to high elevations (2255-2990 m [7400-9800 feet]) on gentle to somewhat steep (2-29%) slopes. Aspect varies but is often on northeast-facing slopes. Microrelief is usually broken and hummocky. Sites are found at lower to upper portions of slopes and rarely, are on ridgetops. Soils are typically from granitic parent material, however, some stands to the north are derived from volcanic or mixed lithology. These soils are typically greater that 63.5 cm (25 inches) and occasionally greater than 89 cm (35 inches). Very little bare soil is usually exposed. Soil depths range from 35-100 cm (14-40 inches). Soil textures range from sand to loam and are excessively drained to well drained. Stands form a dense forest with an open understory. The tree layer is dominated by <i>Tsuga mertensiana</i> mixed with <i>Abies magnifica</i>. <i>Pinus contorta var. murrayana</i> and <i>Pinus monticola</i> are also important overstory tree species. The understory layers are typically open. Occasional shrub species may include <i>Ribes roezlii (= Grossularia roezlii)</i> and <i>Ribes montigenum</i>. Herb species may include <i>Eucephalus breweri (= Chrysopsis breweri), Hieracium albiflorum, Poa bolanderi</i>, and <i>Carex rossii</i>. Conifer regeneration is high at this association and is dominated by <i>Abies magnifica</i> with significantly lower amounts of <i>Tsuga mertensiana</i>. |
Comm #10673
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CEGL003999
» more details
accession code: VB.CC.5788.CEGL003999
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #10674
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CEGL000657
» more details
accession code: VB.CC.3263.CEGL000657
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #10675
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CEGL005257
» more details
accession code: VB.CC.6564.CEGL005257
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #10676
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Abies concolor / Taxus brevifolia Forest
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accession code: VB.CC.34449.CEGL000028
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Western Ecology Working Group of... |
0
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This productive, tall conifer forest association is typically at found at moist sites, and when in good condition supports old trees and snags. It is known to occur in the Klamath-Siskiyou region of Oregon and possibly in the coastal range of Oregon and in northwestern California. Stands can be found at elevations of 630-1400 m (2060-4600 feet) on all aspects with slopes up to 78%. Parent material is generally alluvium or serpentine. <i>Pseudotsuga menziesii</i> and <i>Abies concolor</i> dominate the tree layer. <i>Taxus brevifolia</i> and <i>Abies concolor</i> dominate the tree understory. <i>Mahonia nervosa (= var. nervosa), Achlys triphylla</i>, and <i>Linnaea borealis ssp. longiflora</i> dominate the forest floor. <i>Rosa gymnocarpa</i> is found in all occurrences at low cover (3%). High cover of moss (59%) indicates high moisture. |
Comm #10677
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CEGL000455
» more details
accession code: VB.CC.3069.CEGL000455
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #10678
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Betula nana Seasonally Flooded Shrubland Alliance
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accession code: VB.CC.17999.BETULANANASEASO
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Western Ecology Working Group of... |
0
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Vegetation types within this seasonally flooded, cold-deciduous alliance occur in marshes in the subalpine and montane riparian zones. Elevations range from 900 m in Montana to 3000 m in Colorado. Communities can occur on beaver ponds, lakes, marshes, seeps, swales, and wet alluvial terraces adjacent to low-gradient meandering streams. They are found in areas where soils are saturated from snowmelt runoff for a significant part of the growing season, often on fens, where the vegetation receives water from seeps and springs. Soils are commonly Histosols, flooded until mid summer and saturated all year in many sites. Quaking mats are typical of many stands. Soil pH in Colorado is 6.3. Betula nana (= Betula glandulosa) dominates the canopy with 25-60% cover. The canopy is typically dense; however, there are large, open spaces between individual shrub clumps. Other shrubs present include Salix planifolia, Salix monticola, Salix wolfii, and Dasiphora fruticosa ssp. floribunda (= Pentaphylloides floribunda) in the Colorado stands. In the Montana sites Cornus sericea, Alnus incana, and Rhamnus alnifolia can occur. The herbaceous undergrowth is found on small hummocks and is usually dominated by a dense mixture of mesic forbs and mesic graminoids. Mesic graminoids (25-60% cover) include Calamagrostis canadensis, Calamagrostis stricta, Carex aquatilis, Carex utriculata, Carex livida, and Deschampsia caespitosa. Forb cover is sparse and may include Epilobium ciliatum, Caltha leptosepala, Ligusticum filicinum, Ranunculus sceleratus, Sparganium natans (= Sparganium minimum), and Thalictrum alpinum. The fern layer can consist of as much as 80% cover with Equisetum laevigatum. Salix planifolia, Salix wolfii, Salix geyeriana, and Dasiphora fruticosa ssp. floribunda shrublands occur in adjacent riparian areas. Carex spp., Deschampsia caespitosa, and Eleocharis quinqueflora meadows may also be present. |
Comm #10679
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CEGL007004
» more details
accession code: VB.CC.6933.CEGL007004
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #10680
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A.1430
» more details
accession code: VB.CC.1207.A1430
NOT CURRENTLY ACCEPTED
|
EcoArt 2002 |
0
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