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Reference
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Description |
Comm #7701
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Abies concolor / Leymus triticoides Woodland
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accession code: VB.CC.34533.CEGL000886
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Western Ecology Working Group of... |
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This plant association is restricted to upper elevations between 2750-3020 m (9000-9900 feet) in the Capitan Mountains of south-central New Mexico. It occurs on steep slopes with cobbly soils derived from talus. <i>Abies concolor</i> is the dominant in association with <i>Pseudotsuga menziesii</i>, and <i>Pinus strobiformis</i>. <i>Picea engelmannii</i> and <i>Abies lasiocarpa</i> are absent or accidental. Shrubs are well-represented (<i>Holodiscus dumosus, Acer glabrum</i>, and <i>Quercus gambelii</i>), but the grass <i>Leymus triticoides</i> is abundant to luxuriant, and diagnostic in the herb layer. |
Comm #7702
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Picea pungens / Alnus incana Woodland
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accession code: VB.CC.33898.CEGL000894
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Western Ecology Working Group of... |
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This spruce woodland occurs in montane-subalpine riparian areas in Colorado, Wyoming and possibly New Mexico. Elevation ranges from 1900 to 3200 m (6100-10,650 feet). Stands occur in deep, shaded canyons and narrow valleys along relatively straight stream reaches where it generally forms small patches, but can be continuous for several river miles. These canyon floodplains and stream benches are variable in width but are in areas with cold-air drainage and limited sunlight. Soils are generally shallow and range from loamy sand to silty clay loams with high organic matter content over gravel, cobbles, or boulders. Vegetation is characterized by a somewhat open to moderately dense canopy (20-70% cover) that is typically strongly dominated by <i>Picea pungens</i> with 10-70% cover in overstory. Other trees occur infrequently but may include <i>Pseudotsuga menziesii, Populus angustifolia, Picea engelmannii</i>, or <i>Pinus ponderosa</i>. <i>Abies lasiocarpa</i> may be present to codominant with 1-50% cover in higher elevation stands. There are typically many seedlings and saplings as well as mature trees. The thick shrub understory is confined to a narrow band lining the stream channel. Shrub species include 10-80% cover of <i>Alnus incana</i>, 0-40% cover of <i>Salix drummondiana</i>, 0-30% cover each of <i>Salix monticola</i> and <i>Acer glabrum</i>, and 0-10% cover each of <i>Cornus sericea</i> and <i>Lonicera involucrata</i>. Additional shrubs include <i>Rosa woodsii, Dasiphora fruticosa ssp. floribunda, Ribes lacustre, Salix monticola</i>, and <i>Sambucus racemosa</i>, in addition to incidental shrubs more common in the surrounding uplands. The forb layer is species-rich with up to 40 species and dense, with a total of up to 50% cover. Forb species include <i>Actaea rubra, Conioselinum scopulorum, Oxypolis fendleri, Geranium richardsonii, Heracleum maximum (= Heracleum lanatum), Maianthemum stellatum, Mertensia ciliata, Osmorhiza berteroi, Rudbeckia laciniata</i>, and <i>Equisetum arvense</i>. Graminoids often include <i>Calamagrostis canadensis, Bromus ciliatus</i>, and <i>Carex</i> spp. |
Comm #7703
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CEGL005256
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accession code: VB.CC.6563.CEGL005256
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
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Comm #7704
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Abies concolor / Quercus gambelii Forest
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accession code: VB.CC.34455.CEGL000261
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Western Ecology Working Group of... |
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This forest association has been reported from mountains in New Mexico, Colorado, Utah, and in Arizona. Stands occur along the Mogollon Rim north to the Wasatch Range and east to the southern Rocky Mountains. Elevations range from 1680-2930 m (5500-9600 feet). This community is widespread and often occurs on middle and lower slopes and all aspects except south and southwestern. <i>Abies concolor</i> and <i>Pseudotsuga menziesii</i> typically codominate the upper tree canopy. <i>Pinus ponderosa, Pinus strobiformis</i>, and <i>Juniperus</i> spp. may also be present. <i>Quercus gambelii</i> dominates the subcanopy and undergrowth. Other shrub species may include <i>Amelanchier alnifolia, Symphoricarpos oreophilus, Robinia neomexicana</i>, and <i>Mahonia repens</i>. The sparse to moderately dense herbaceous layer is typically composed of <i>Carex rossii, Poa fendleriana, Lathyrus lanszwertii var. leucanthus (= Lathyrus arizonicus), Thalictrum fendleri</i>, and <i>Achillea millefolium</i>. Stands transition to ~<i>Pinus ponderosa / Quercus gambelii</i> Woodland (CEGL000870)$$ in drier sites. |
Comm #7705
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CEGL000999
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accession code: VB.CC.3600.CEGL000999
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
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Comm #7706
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CEGL000119
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accession code: VB.CC.2746.CEGL000119
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #7707
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Abies amabilis / Vaccinium ovalifolium / Erythronium montanum Forest
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accession code: VB.CC.34391.CEGL000234
NOT CURRENTLY ACCEPTED
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Western Ecology Working Group of... |
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This association occurs only in the western and southern Olympic Mountains of Washington. Sites are found at middle elevations averaging about 1000 m, in a hypermaritime wet climatic zone. This is a needle-leaved evergreen conifer forest dominated by <i>Abies amabilis</i>, with abundant <i>Tsuga heterophylla</i> and lesser amounts and frequency of <i>Chamaecyparis nootkatensis</i> and <i>Tsuga mertensiana</i>. Tree regeneration is dominated by <i>Abies amabilis</i>. The understory is dominated by deciduous broad-leaved shrubs about 0.5-1.5 m tall, primarily <i>Vaccinium ovalifolium</i> (mean percent cover 58). <i>Menziesia ferruginea</i> is frequent in small amounts. The herb layer is somewhat sparse, being codominated by <i>Erythronium montanum, Clintonia uniflora, Blechnum spicant, Rubus pedatus</i>, and/or <i>Streptopus lanceolatus var. curvipes (= Streptopus roseus)</i>. Sites are snowy (mean snowpack depth about 3 m); soils are deep colluvium; slopes range from flat to very steep. This association is distinguished from similar associations by at least 10% cover of <i>Vaccinium ovalifolium</i> and 1% cover of <i>Erythronium montanum</i>, along with little to no <i>Tsuga mertensiana</i> (<10% cover), <i>Xerophyllum tenax, Oplopanax horridus</i>, or <i>Lysichiton americanus</i>. |
Comm #7708
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Abies concolor - Pseudotsuga menziesii / Acer glabrum Forest
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accession code: VB.CC.34470.CEGL000240
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Western Ecology Working Group of... |
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This white fir forest association ranges from southern and central Utah and southern Colorado to northern New Mexico and central Arizona and is found between 2073 and 3140 m (6800-10,300 feet) elevation. This forest shows great variety with respect to topographic characteristics. In southern Colorado and northern New Mexico, it is one of the most widespread mixed conifer forests. Though it frequently occurs on moderate to steep north- and northwest-facing slopes, other slope aspects are represented. When found on southern aspects, this forest is at higher elevations or streamside settings. Predominantly found on lower slopes, it has also been located on mid- and upper slopes. Sites can have high amounts of exposed rock (up to 50% or more cover), with abundant leaf litter and coarse woody debris. The overstory is highly complex and has high variability. <i>Abies concolor</i> dominates or codominates, if not in the overstory, then as regeneration. <i>Pseudotsuga menziesii</i> is a successional dominant and remains a codominant in late-successional stands, becoming minor in very old stands. <i>Picea pungens</i> and <i>Pinus flexilis</i> may be important, as well as <i>Pinus strobiformis</i> at lower latitudes. <i>Abies lasiocarpa</i> and <i>Picea engelmannii</i> may occur in frost pockets as regeneration or occasional mature trees, but they are minor and almost always are under severe competition from dense regeneration and canopy dominance of <i>Abies concolor</i> and <i>Pseudotsuga menziesii</i>. The open to dense tall-shrub layer dominates the undergrowth with <i>Acer glabrum</i> and often <i>Amelanchier alnifolia</i>. If present, <i>Quercus gambelii</i> has low cover (<5%). Common low-growing shrubs are <i>Holodiscus dumosus</i>, and <i>Jamesia americana</i>, which occur on cobbly substrates, along with <i>Mahonia repens (= Berberis repens), Paxistima myrsinites, Physocarpus monogynus</i>, and <i>Symphoricarpos oreophilus</i>; however, some stands have an open shrub of layer of <i>Acer glabrum</i> and little else in the understory. The herb layer species are typically low in cover value. |
Comm #7709
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Comunidad de Elodea potamogeton
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accession code: urn:lsid:vegbank.org:commConcept:36783-{B6FB12DF-34BD-422E-A2B2-C91ABA8F2C3F}
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NatureServe Biotics 2019 |
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4000-4600 m. Orotropical pluviestacional húmedo y subhúmedo. Vegetación de hidrofitos sumergidos y enraizados, dominada por <i>Elodea potamogeton</i>, propia de aguas fluyentes medianamente mineralizadas, desarrollándose en cauces de pequeños arroyos de aguas moderadamente rápidas del piso ecológico altoandino. Áreas mayores actuales y/o potenciales: Cordilleras de Cochabamba, Oruro y centro-norte de Potosí. |
Comm #7710
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A.850
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accession code: VB.CC.2479.A850
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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This alliance includes desert shrublands characterized by ~Dasylirion leiophyllum$, often with codominant ~Agave lechuguilla$ and/or ~Viguiera stenoloba$. Associated species can include ~Acacia greggii, Dalea formosa, Bernardia obovata, Bouteloua$ spp., ~Chamaesyce$ sp., ~Dasylirion leiophyllum, Agave lechuguilla, Bouteloua ramosa, Krameria erecta (= Krameria glandulosa), Leucophyllum frutescens, Mimosa aculeaticarpa var. biuncifera, Aristida$ spp., and ~Erioneuron$ spp. |
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