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Name
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Reference
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Plots↓
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Description |
Comm #11391
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Pseudotsuga menziesii / Symphoricarpos occidentalis Forest
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accession code: VB.CC.33284.CEGL000461
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Western Ecology Working Group of... |
0
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Comm #11392
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Dasiphora fruticosa ssp. floribunda / Deschampsia caespitosa Shrubland
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accession code: VB.CC.33784.CEGL001107
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Western Ecology Working Group of... |
0
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This montane to subalpine shrubland association is widespread in the Rocky Mountains west to eastern Oregon and Utah on stream terraces above the channel, on drier edges of wetlands, on broad gently sloping valley bottoms and floodplains, on moderately steep mesic slopes near springs, and near glacial depressions. Elevation ranges from 2500-3300 m (8300-10,700 feet) in Colorado to 860-2267 m (2820-7400 feet) in Montana. Aspect is variable. Soils are typically derived from alluvium and are deep, fine-textured, but vary from sandy loam to clay loam. Gleying and mottling are common. Sites have a high water table that fluctuates (40-100 cm) seasonally. These riparian shrublands form an open to moderately dense, low-shrub layer dominated by <i>Dasiphora fruticosa ssp. floribunda (= Pentaphylloides floribunda; = Potentilla fruticosa)</i> with thick cover of bunchgrasses. Other shrub species may include low cover of <i>Artemisia cana, Betula glandulosa, Salix boothii</i>, and <i>Salix planifolia</i>. The lush herbaceous layer is often typically diverse and usually dominated by the graminoid <i>Deschampsia caespitosa</i>, which is consistently present as a diagnostic species at least in trace amounts. Other characteristic graminoids may include <i>Carex aurea, Carex aquatilis, Carex heteroneura var. chalciolepis, Carex nova, Carex pellita (= Carex lanuginosa), Carex microptera, Danthonia intermedia, Elymus trachycaulus, Festuca rubra, Festuca saximontana, Festuca brachyphylla, Phleum alpinum, Poa secunda</i>, and <i>Trisetum spicatum</i>. Numerous forb species may be present such as <i>Antennaria</i> spp., <i>Argentina anserina, Polygonum bistortoides, Caltha leptosepala, Cerastium arvense, Geum rossii, Penstemon procerus, Potentilla</i> spp., <i>Selaginella</i> spp., <i>Solidago simplex, Symphyotrichum</i> spp., <i>Stellaria longipes, Thalictrum</i> spp., <i>Trifolium longipes</i>, and <i>Valeriana edulis</i>. With heavy grazing <i>Achillea millefolium, Antennaria</i> spp., <i>Carex nebrascensis, Fragaria virginiana, Juncus balticus</i>, and <i>Potentilla gracilis</i> increase in cover. Exotic graminoids <i>Poa pratensis</i> and <i>Alopecurus pratensis</i> and forbs <i>Taraxacum officinale</i> and <i>Trifolium repens</i> may be common in heavily grazed/disturbed stands. |
Comm #11393
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CEGL008606
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accession code: VB.CC.7908.CEGL008606
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #11394
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Populus tremuloides - Abies lasiocarpa / Shepherdia canadensis Forest
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accession code: VB.CC.32861.CEGL000529
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Western Ecology Working Group of... |
0
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This quaking aspen forest association occurs in the Rocky Mountains of Colorado, Utah, Idaho and Wyoming. This description is based on information solely from Great Sand Dunes National Park and Preserve in Colorado. Additional global information will be added as it becomes available. This association is documented from a stream terrace at 3098 m elevation. Terrain is gently sloping with north-facing slopes. Soils are somewhat poorly drained sandy loams. Ground cover is dominated by litter and duff, but can have significant cover of wood. This forested association is dominated by a moderately open canopy of <i>Populus tremuloides</i> and <i>Picea engelmannii</i>, with scattered <i>Pseudotsuga menziesii</i>. Conifers are also present in the shrub layer, which is dominated by <i>Shepherdia canadensis</i> (30%). The dwarf-shrub layer is dominated by <i>Vaccinium myrtillus var. oreophilum</i> with 60% cover. Forbs and graminoids are present in only trace amounts. |
Comm #11395
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CEGL004526
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accession code: VB.CC.6072.CEGL004526
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #11396
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Salix boothii / Mesic Graminoids Shrubland
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accession code: VB.CC.32386.CEGL001181
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Western Ecology Working Group of... |
0
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This riparian community is currently known from Colorado, Idaho, Utah, Wyoming, and Montana. This cold-deciduous shrubland occurs between 2045 and 2990 m <b>(</b>6700-9800 feet) in elevation. It occurs mostly on moist stream terraces, streambanks, gently sloping wide floodplains or sideslope seeps, and can be associated with beaver ponds. The local micro-topography is highly variable, from smooth to very hummocky. Soil textures range from clay and fine-loams to sandy-skeletal, usually over coarse alluvium. Water tables range from the surface to 80 cm (31 inches), and signs of mottling are common. Some stands receive runoff and seepage from irrigated pastures. These tall mesic shrublands are dominated by <i>Salix boothii</i>. Other willows are often present, but in lower amounts, and include <i>Salix geyeriana, Salix wolfii, Salix lucida, Salix lutea, Salix drummondiana</i>, and rarely <i>Salix monticola</i>. <i>Ribes inerme</i> and <i>Lonicera involucrata</i> may also be present. The herbaceous undergrowth is dominated by graminoids. No single graminoid species is consistently dominant or present in all stands, and typically, no single species can be said to dominate any one stand. Common graminoid species include <i>Agrostis gigantea, Poa palustris, Phleum pratense, Deschampsia caespitosa, Carex hoodii, Carex pellita (= Carex lanuginosa), Carex praegracilis, Carex praticola, Carex microptera, Juncus balticus</i>, and <i>Glyceria striata</i>. Forbs are usually present, and may be diverse, but are never as abundant as the graminoid cover. Forb species include <i>Fragaria virginiana, Potentilla pulcherrima x hippiana, Symphyotrichum foliaceum, Mentha arvensis, Vicia americana, Veronica americana, Mimulus guttatus, Ranunculus cymbalaria</i>, and <i>Epilobium</i> spp. This association is distinguished from ~<i>Salix boothii</i> / Mesic Forbs Shrubland (CEGL001180)$$ by having a higher cover of graminoid species. Stands with predominantly non-native graminoid species in the undergrowth are considered grazing-induced. |
Comm #11397
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CEGL003872
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accession code: VB.CC.5701.CEGL003872
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #11398
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Pseudotsuga menziesii / Symphoricarpos oreophilus Forest
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accession code: VB.CC.33283.CEGL000462
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Western Ecology Working Group of... |
0
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This widespread forest association occurs in foothills, mountains and plateaus from southwestern Montana through Wyoming and Colorado to Trans-Pecos Texas, west to Arizona, Utah, and into eastern Oregon and Washington. Elevation ranges from 700-2900 m (2310-9500 feet). This broadly defined forest association occurs as both a non-obligate riparian community and as an upland community. In more arid regions stands occur along drainages along narrow riparian areas in ravines, canyons, and up steep draws. It continues upland on steep north-facing slopes in narrow canyons where dense shade and steepness preclude any significant shrub or herbaceous understory. Elsewhere at more northern latitudes, it occurs near lower treeline on warm, dry southern aspects with moderate to very steep mid- and upper slopes and ridges. Soils are variable and range from deep silt loam to shallow, rocky substrates. Most stands have abundant litter on the ground, and some have high rock cover. The vegetation is characterized by a relatively sparse to dense evergreen tree canopy dominated by <i>Pseudotsuga menziesii</i>, sometimes with scattered large <i>Pinus ponderosa, Pinus flexilis, Populus tremuloides, Juniperus scopulorum</i>, or <i>Juniperus occidentalis</i>, especially on drier sites. <i>Abies concolor</i> is typically not present. <i>Symphoricarpos oreophilus</i> dominates the sparse to moderately dense short-shrub layer. Shrub associates vary depending on range and habitat and may include <i>Acer glabrum, Amelanchier</i> spp., <i>Artemisia tridentata ssp. vaseyana, Cercocarpus montanus, Holodiscus dumosus, Juniperus communis, Mahonia repens, Paxistima myrsinites, Prunus virginiana, Quercus gambelii, Ribes cereum, Ribes inerme, Rosa woodsii</i>, or <i>Shepherdia canadensis</i>. The generally sparse herbaceous layer is composed of mostly graminoids with scattered forbs. |
Comm #11399
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CEGL008624
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accession code: VB.CC.7925.CEGL008624
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #11400
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CEGL008625
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accession code: VB.CC.7926.CEGL008625
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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