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Name
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Reference
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Plots↓
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Description |
Comm #11851
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Alnus incana / Spiraea douglasii Shrubland
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accession code: VB.CC.34331.CEGL001152
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Western Ecology Working Group of... |
0
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This association occurs in Washington, Oregon and California. This riparian tall-shrub (or small-tree) community is common in eastern Oregon at elevations of 670-1740 m (2200-5700 feet). Stands are found on a variety of riparian fluvial surfaces. Soil textures vary from loam to sandy loam grading into cobbles and gravels. Soils are well drained, but remain wet-moist because of the proximity of water. The shrub canopy is dominated by <i>Alnus incana</i> (42% cover) and <i>Spiraea douglasii</i> (18% cover). Forb cover averages 29%, and is typified by <i>Maianthemum stellatum</i> (4%), <i>Galium triflorum</i> (2%), and <i>Achillea millefolium</i> (1%). Important graminoids are <i>Carex angustata (= Carex eurycarpa)</i> (5%), <i>Glyceria striata (= Glyceria elata)</i> (4%), and <i>Carex disperma</i> (3%). <i>Athyrium filix-femina</i> (2%) is also common. |
Comm #11852
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Carex spectabilis Herbaceous Vegetation
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accession code: VB.CC.34100.CEGL001827
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Western Ecology Working Group of... |
0
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Comm #11853
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Carex spectabilis - Polygonum bistortoides Herbaceous Vegetation
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accession code: VB.CC.33999.CEGL001828
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Western Ecology Working Group of... |
0
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Comm #11854
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CEGL007474
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accession code: VB.CC.7148.CEGL007474
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #11855
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Betula occidentalis / Maianthemum stellatum Shrubland
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accession code: VB.CC.33943.CEGL001162
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Western Ecology Working Group of... |
0
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This plant association occurs within the Intermountain West from Colorado north and west into the Pacific Northwest. It typically forms a tall band of shrubs (1.5-2.5 m [5-8 feet]) lining the channel of first- and second-order streams in the elevational range of 2000-2700 m (6400-8800 feet). At higher elevations, conifer trees on the upper slopes intermix with <i>Betula occidentalis</i> at the streambank. At lower elevations along sunny valley bottoms, well-developed, large occurrences occupy relatively flat stream benches and often extend away from the channel edge. Other shrubs that may be present include <i>Alnus incana ssp. tenuifolia, Cornus sericea, Salix exigua, Jamesia americana, Amelanchier utahensis, Prunus virginiana</i>, and <i>Salix monticola</i>. The undergrowth can be a sparse or thick carpet of grasses and forbs. In undisturbed stands, forb species richness can be high, with over 30 species in one stand, and may include species such as <i>Maianthemum stellatum, Heracleum maximum, Thalictrum fendleri</i>, and <i>Rudbeckia laciniata</i>. Graminoid cover is usually low but can include <i>Poa pratensis, Equisetum arvense, Carex utriculata</i>, and others. An abundance of non-native grass species is considered an indication of past or current heavy grazing. |
Comm #11856
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CEGL004422
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accession code: VB.CC.5984.CEGL004422
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #11857
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CEGL004423
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accession code: VB.CC.5985.CEGL004423
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #11858
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CEGL004424
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accession code: VB.CC.5986.CEGL004424
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #11859
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Acacia neovernicosa / Flourensia cernua Shrubland
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accession code: VB.CC.20442.ACACIANEOVERNIC
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Western Ecology Working Group of... |
0
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Comm #11860
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Salix boothii - Salix lemmonii Shrubland
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accession code: VB.CC.21250.SALIXBOOTHIISAL
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Western Ecology Working Group of... |
0
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