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Name
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Reference
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Plots↓
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Description |
Comm #7131
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Pinus contorta / Spiraea betulifolia Forest
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accession code: VB.CC.33150.CEGL000164
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Western Ecology Working Group of... |
0
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This subalpine forest association is known from the central and northern Rocky Mountains from northwestern Wyoming, across Idaho and western Montana into Canada. Elevations range from 1070 to 2500 m (3500-8200 feet). Stands occur on a variety of sites from steep colluvial slopes to gentle rolling terrain on relatively warm, dry sites. Sites at lower elevation and latitude are typically restricted to northerly aspects or limestone substrate. Higher elevation sites occur on a variety of aspects with the most northerly stands restricted to dry southern aspects. Parent materials are various. Tree litter is often 4-6 cm deep and dominates ground cover. Vegetation is characterized by an overstory tree canopy dominated by <i>Pinus contorta</i> with <i>Spiraea betulifolia</i> prominent in the understory. <i>Picea engelmannii, Pseudotsuga menziesii</i>, or <i>Populus tremuloides</i> may be present in the subcanopy. Sites are generally too cool for <i>Pinus ponderosa</i>. <i>Spiraea betulifolia</i> is a major component in the short-shrub layer with <i>Mahonia repens</i> or <i>Paxistima myrsinites</i> sometimes abundant. Other common shrubs include <i>Acer glabrum, Amelanchier alnifolia, Lonicera utahensis, Prunus virginiana, Shepherdia canadensis, Sorbus scopulina, Symphoricarpos oreophilus</i>, or <i>Symphoricarpos albus</i>. The sparse to moderately dense herbaceous layer is dominated by graminoids <i>Calamagrostis rubescens, Carex geyeri, Festuca idahoensis</i>, or <i>Pseudoroegneria spicata</i>, with a variety of forbs. |
Comm #7132
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Pseudotsuga menziesii / Amelanchier alnifolia Forest
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accession code: VB.CC.26064.PSEUDOTSUGAMENZ
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Western Ecology Working Group of... |
0
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Pseudotsuga menziesii / Amelanchier alnifolia Forest occurs on cool slopes at mid-elevations in the Bear's Paw Mountains of north-central Montana. Stands are dominated by Pinus ponderosa in seral condition, but Pseudotsuga menziesii is the indicated climax. Prunus virginiana, Amelanchier alnifolia and Spiraea betulifolia dominate the understory. Characteristic forbs are typical of dry forest. Soils are loamy, gravelly and slightly acidic. |
Comm #7133
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Leymus salinus ssp. salmonis - Lupinus argenteus Sparse Vegetation
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accession code: VB.CC.19762.LEYMUSSALINUSSS
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Western Ecology Working Group of... |
0
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Comm #7134
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Metrosideros polymorpha / Cibotium spp. Lowland Wet Forest
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accession code: VB.CC.21906.METROSIDEROSPOL
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Western Ecology Working Group of... |
0
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Comm #7135
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Abies lasiocarpa / Juniperus communis Woodland
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accession code: VB.CC.21910.ABIESLASIOCARPA
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Western Ecology Working Group of... |
0
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Alnus rhombifolia/Cornus sericea
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accession code:
NOT CURRENTLY ACCEPTED
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CDFW Natural Communities List |
0
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Comm #7136
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CEGL008013
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accession code: VB.CC.7548.CEGL008013
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #7137
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A.1429
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accession code: VB.CC.1205.A1429
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #7138
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A.935
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accession code: VB.CC.2560.A935
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Stands of these central and southern California shrublands grow on intermittently flooded sites between sea level and 300 m elevation. Water chemistry is fresh. Summers are warm and dry, and the bulk of yearly precipitation falls between November and May. Average yearly rainfall totals between 60 and 120 cm. Winters are mild; freezes are rare. This alliance is dominated by ~Sambucus mexicana$. Other shrubs present may include ~Vitis californica, Salix exigua$, and ~Toxicodendron diversilobum$. Emergent trees may be present and could include ~Populus fremontii, Fraxinus latifolia$, and ~Quercus lobata$. The herbaceous layer is dominated by graminoids. |
Comm #7139
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Salix exigua
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accession code: VB.cc.37724.SALIXEXIGUA
NOT CURRENTLY ACCEPTED
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CDFW Natural Communities List |
0
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