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Name
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Reference
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Plots↓
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Description |
Comm #7691
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Alaska Arctic Tussock-Lichen Tundra
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accession code: urn:lsid:ecoobs.vegbank.org:commConcept:8963-{F71C0958-0D9E-44F8-9006-A170F3ACA551}
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Western Ecology Working Group of... |
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Comm #7692
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Alaska Arctic Shrub-Tussock Tundra
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accession code: urn:lsid:ecoobs.vegbank.org:commConcept:8962-{ED1DA9EA-9E51-4218-B7C8-4315BED77770}
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Western Ecology Working Group of... |
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Comm #7693
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Alaska Arctic Tussock Tundra
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accession code: urn:lsid:ecoobs.vegbank.org:commConcept:8961-{8BEFBA34-AB05-4BCF-A824-E590AEC679EC}
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Western Ecology Working Group of... |
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Comm #7694
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Abies concolor / Acer grandidentatum Forest
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accession code: VB.CC.34418.CEGL000241
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Western Ecology Working Group of... |
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This forest association has been reported from mountains in Utah, New Mexico and Arizona along the Mogollon Rim north into the high plateaus and Wasatch Range of Utah. Elevation ranges from 1525-2590 m (5000-8500 feet). This mesic community generally occurs on steep, lower slopes and benches with northern aspects and in narrow canyons and ravines. Soils are generally deep, well-drained, coarse and fine-textured alluvium. <i>Abies concolor</i> and <i>Pseudotsuga menziesii</i> codominate the upper tree canopy with the subcanopy or tall-shrub layer dominated by <i>Acer grandidentatum, Quercus gambelii</i>, and <i>Acer negundo</i>. <i>Pinus strobiformis, Pinus ponderosa, Populus tremuloides</i>, and <i>Juglans major</i> may also be present. The short-shrub layer is variable. The herbaceous layer is moderately dense and may include <i>Carex siccata (= Carex foenea), Bromus ciliatus var. ciliatus, Bromus ciliatus var. richardsonii (= Bromus richardsonii), Koeleria macrantha, Thalictrum fendleri</i>, and <i>Aquilegia chrysantha</i>. This association transitions to ~<i>Abies concolor / Quercus gambelii</i> Forest (CEGL000261)$$ in drier uplands and to riparian types adjacent to streams. |
Comm #7695
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Abies amabilis / Gaultheria shallon / Blechnum spicant Forest
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accession code: VB.CC.33339.CEGL000221
NOT CURRENTLY ACCEPTED
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Western Ecology Working Group of... |
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This association occurs only in lowlands on the western Olympic Peninsula of Washington and western and northern Vancouver Island, British Columbia. This is a needle-leaved evergreen giant conifer forest. <i>Tsuga heterophylla, Abies amabilis</i>, and <i>Thuja plicata</i> collectively dominate the tree canopy, though the latter may sometimes be absent. Tree regeneration is generally dominated by <i>Tsuga heterophylla</i> and/or <i>Abies amabilis</i>. The understory has a moderately dense layer of evergreen broad-leaved shrubs (<i>Gaultheria shallon</i>) about 0.5-1.5 m tall. The deciduous broad-leaved shrubs <i>Vaccinium ovalifolium, Vaccinium parvifolium</i>, and <i>Menziesia ferruginea</i> are very frequent and sometimes codominant. The herb layer is relatively sparse and dominated by the fern <i>Blechnum spicant</i>, which averages about 5-10% cover. Other moderately frequent herbs include <i>Polystichum munitum, Maianthemum dilatatum</i>, and <i>Cornus unalaschkensis</i>. It is found on coastal plains, foothills, and mountain slopes at elevations from near sea level to 650 m in very wet, cool hypermaritime climatic zones. These generally mesic to slightly dry sites are on very gentle to steep, straight to convex slopes. This association is distinguished from similar associations by at least 10% cover of <i>Abies amabilis</i>, 5% cover of <i>Gaultheria shallon</i>, and 1% cover of <i>Blechnum spicant</i>, along with little to no <i>Pseudotsuga menziesii, Oxalis oregana, Lysichiton americanus</i>, and <i>Mahonia nervosa</i>. |
Comm #7696
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Alnus incana / Glyceria striata Shrubland
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accession code: VB.CC.34422.CEGL000228
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Western Ecology Working Group of... |
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This shrubland association is a widespread community known from around the rim of the northwestern end of the Columbia Plateau in Washington, in the Blue Mountains of Oregon, and in northern Idaho but of limited extent in the Pacific Northwest. Stands occur in narrow to moderately wide floodplains on streambanks and around springs. Sites are usually very low-gradient and can be characterized as "stagnant"; soils can include silts and mucks. These shrublands are characterized by stands of medium-tall and tall deciduous shrubs and herbaceous undergrowth of wetland-indicator grasses and forbs. They have little to no overstory tree canopy, although individual <i>Picea engelmannii, Abies grandis, Abies lasiocarpa</i>, or <i>Thuja plicata</i> trees may be present. Total shrub cover usually exceeds 50% and is dominated by <i>Alnus incana ssp. tenuifolia</i>, the diagnostic shrub. Other shrubs include <i>Cornus sericea, Symphoricarpos albus</i>, and <i>Ribes</i> spp. The understory of undisturbed stands has an herbaceous layer with abundant cover of <i>Glyceria striata (= Glyceria elata)</i> and/or <i>Cinna latifolia</i>. These grasses are often accompanied by <i>Calamagrostis canadensis</i> or <i>Elymus glaucus</i>. Other common herbs include <i>Geum macrophyllum, Galium triflorum</i>, and <i>Equisetum</i> spp. Heavily disturbed stands have abundant non-native grasses. |
Comm #7697
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Salix farriae / Eleocharis quinqueflora Saturated Shrubland
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accession code: VB.CC.32526.CEGL000229
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Western Ecology Working Group of... |
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This infrequent bog and poor fen association appears between 579-1525 m (1900-5000 feet) in northeastern Washington and the northernmost East Cascades. It is associated with very low-gradient streams and lakes in very broad, very low-gradient valleys. This bog association has deep moss-peat soils that usually remain saturated throughout the growing season and with little surface water exposed. These are anaerobic soils with poor nutrients, and they are much warmer than other low willow associations in the region. This association has low vascular species diversity and, as sampled in Washington, no species appears in all plots. The species that appear in over half the samples are: the less than 2-m tall willow <i>Salix farriae</i>, the forb <i>Comarum palustre</i>, the graminoids <i>Carex utriculata, Carex limosa</i>, and <i>Eleocharis quinqueflora</i>, and seedlings of <i>Picea engelmannii</i>. Species that occur in 33% of plots are <i>Salix planifolia ssp. planifolia (= var. monica), Betula glandulosa, Viola macloskeyi, Calamagrostis canadensis, Carex diandra</i>, and <i>Eriophorum angustifolium ssp. subarcticum</i>. |
Comm #7698
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Abies amabilis / Vaccinium ovalifolium / Clintonia uniflora Forest
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accession code: VB.CC.34392.CEGL000233
NOT CURRENTLY ACCEPTED
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Western Ecology Working Group of... |
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Comm #7699
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A.1468
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accession code: VB.CC.1240.A1468
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
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This herbaceous wetland alliance occurs on lakeshores, river floodplains, and in wet meadows in western and south-central Montana, and the tidally influenced overflow plain of the Columbia River in western Oregon and Washington. Elevations extend just above the tidal influence zone in coastal habitats to 2500 m in the subalpine forests of Montana. Stands occur in low-lying areas with prolonged seasonal flooding that maintain saturated soils throughout the growing season. Soils are heavy textured, often with a thick organic layer, and are derived from alluvium. The vegetation is characterized by nearly pure stands of the perennial graminoid ~Carex aperta$ (70-90% cover) with lesser amounts of ~Agrostis$ spp., ~Poa palustris, Argentina anserina, Bidens cernua, Bidens frondosa, Ludwigia palustris, Polygonum amphibium$, and ~Erysimum cheiranthoides$. Adjacent stands include forests dominated by ~Pseudotsuga menziesii$ at lower elevations and ~Abies lasiocarpa$ or ~Picea engelmannii$ in the subalpine zone, and a variety of riparian stands. |
Comm #7700
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CEGL004768
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accession code: VB.CC.6279.CEGL004768
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EcoArt 2002 |
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