| Add/Drop |
Name
|
Reference
|
Plots↓
|
Description |
Comm #12131
|
Dryas integrifolia - Carex spp. Dwarf-shrub Herbaceous Vegetation
» more details
accession code: VB.CC.34508.CEGL001890
|
Western Ecology Working Group of... |
0
|
This association is documented only from the alpine zone of the Big Snowy Mountains of north-central Montana, though reconnaissance information places it as well in the Tobacco Root Range of southwestern Montana. Stands occur from 2360-2700 m (7750-8850 feet) elevation on gently sloping topography developed on Madison Limestone. This substrate is resistant to chemical weathering, but has been acted upon by frost to produce stepped terraces, rock polygons, sorted/non-sorted frost boils, and 'spotted tundra' (oval, spaced mats of <i>Dryas integrifolia</i> surrounded by rock rubble) and solifluction lobes on lee slopes. Soils are shallow, alkaline, cobbly and covered by a layer of gravels and rock fragments. The mat-forming dwarf-shrub <i>Dryas integrifolia</i> and turf-forming and perennial sedge <i>Carex rupestris</i> are diagnostic for the type and dominate small vegetated patches that are regularly interspersed in a matrix of unvegetated to sparsely vegetated rocky ground. <i>Carex scirpoidea ssp. pseudoscirpoidea (= Carex pseudoscirpoidea), Saxifraga oppositifolia, Polygonum viviparum, Oxytropis sericea, Androsace chamaejasme</i> and <i>Lloydia serotina</i> have high constancy but their individual cover seldom exceeds 5%. This association, in both floristic and environmental param (with some local variation in the forb component), is highly similar to ~<i>Dryas octopetala - Carex rupestris</i> Dwarf-shrub Herbaceous Vegetation (CEGL001892)$$ which is found from the Canadian Rockies south to Colorado. |
Comm #12132
|
Dryas octopetala Dwarf-shrub Herbaceous Vegetation
» more details
accession code: VB.CC.34504.CEGL001891
|
Western Ecology Working Group of... |
0
|
This is an alpine vegetation type found in the northern Cascade Range of Washington and possibly in the high mountains of Idaho. Sites occupied by this association range from 2100-2450 m elevation on gentle to moderate slopes with all aspects, on well-drained, poorly developed soils derived from a variety of parent materials. These alpine sites are relatively dry as snowmelt occurs earlier in the spring than most other communities (early to late May). The vegetation consists of an open to moderately dense dwarf-shrub layer dominated by <i>Dryas octopetala</i>. Associated herbaceous species are <i>Festuca brachyphylla, Lupinus lepidus, Minuartia obtusiloba (= Arenaria obtusiloba)</i>, and diverse species of lichen (though of low importance). <i>Carex</i> spp. and <i>Polygonum viviparum</i> are absent or have low importance. |
Comm #12133
|
CEGL004937
» more details
accession code: VB.CC.6346.CEGL004937
NOT CURRENTLY ACCEPTED
|
EcoArt 2002 |
0
|
|
Comm #12134
|
Dryas octopetala - Polygonum viviparum Dwarf-shrub Herbaceous Vegetation
» more details
accession code: VB.CC.34505.CEGL001894
|
Western Ecology Working Group of... |
0
|
This association is a minor type that has been substantiated from throughout the alpine of southwestern, northwestern and central Montana, and is likely to occur as far north as Canada's Jasper National Park and south to Colorado's Front Range. This is an alpine, fell-field association, ranging in elevation from 2070 to over 3000 m (6790-9840 feet). It is found on gentle to steep slopes with all but southerly aspects. Parent materials include a wide range of sedimentary rock with limestone and siltstone (argillite) predominating. Soils are typically sandy clay derived from limestone (or other calcareous substrate) and quartzite. Gravel content of soil ranges from 5-30%. Soil moisture content during the growing season is high. Disturbance from solifluction, slumps, and earthflows is common. This <i>Dryas octopetala</i> type is more mesic than others currently described, which is attributable to exposures with less solar insolation, placements in the landscape receiving less wind and greater snow deposition and duration. A dwarf-shrub layer dominates the vegetation cover of this community. <i>Dryas octopetala</i> forms mats that range from 30-80% in cover. Dwarf <i>Salix</i> spp. can be common to codominant, including <i>Salix reticulata, Salix arctica</i>, or <i>Salix nivalis</i>. The herbaceous layer is sparse (<20% cover) and is dominated by the forbs <i>Polygonum viviparum, Polygonum bistortoides, Zigadenus elegans</i>, and <i>Oxytropis borealis var. viscida (= Oxytropis viscida)</i>. Forb diversity in the Glacier National Park occurrences is high, with over 100 species represented in 30 plots, and its cover generally exceeds that of the graminoids. Graminoid cover is low (<10%) and mostly composed of <i>Carex elynoides, Carex rupestris, Carex albonigra, Kobresia simpliciuscula, Kobresia myosuroides</i>, and <i>Festuca brachyphylla</i>. Moss and lichen cover is high on some plots (>50%). Diagnostic of this alpine association is a dwarf-shrub layer dominated by <i>Dryas octopetala</i> with <i>Polygonum viviparum</i> dominant in the herbaceous layer. |
Comm #12135
|
Juncus drummondii - Antennaria lanata Herbaceous Vegetation
» more details
accession code: VB.CC.33814.CEGL001904
|
Western Ecology Working Group of... |
0
|
This upper subalpine to alpine wetland community has been described from the southern Madison Range in southwestern Montana and the Grand Teton Mountains of northwestern Wyoming. Elevations range from 2743-3050 m. The community occurs regularly as small patches (much less than one acre in extent) in valley depressions, swales and cirque basins in association with late-persisting snowbeds. Slopes are gentle to moderate (3-41% slope) with various aspects, and the association often occurs as a mosaic with other snowbed communities. Soils are typically shallow, well-drained and have a sandy clay texture derived from gneiss and granite parent materials. Gravel and bare ground cover up to 50% of the soil surface. Diagnostic of this relatively sparse alpine association is the codominance of <i>Juncus drummondii</i> and <i>Antennaria lanata</i>. The major graminoids are <i>Juncus drummondii, Poa fendleriana</i>, and <i>Carex paysonis</i>. The most common forb species are <i>Antennaria lanata, Sibbaldia procumbens</i>, and <i>Erigeron peregrinus</i>. The dwarf-shrub <i>Vaccinium scoparium</i> and <i>Carex paysonis</i> are important (10% cover each), and mosses and lichens have relatively low cover. Scattered shrubs and trees may also be present. |
Comm #12136
|
Pinus ponderosa / Oryzopsis asperifolia Woodland
» more details
accession code: VB.CC.36889.CEGL002123
|
Midwestern Ecology Working Group... |
0
|
This ponderosa pine community is found in the Black Hills of western South Dakota in the United States. Stands occur on sandy loams to silt loams on flat to gently sloping topography. The dominant tree is <i>Pinus ponderosa</i>. No other mature trees have been found in the canopy. There is a poorly developed shrub layer containing species such as <i>Spiraea betulifolia</i> and <i>Symphoricarpos albus</i>. The scattered herb layer is made up mostly of <i>Oryzopsis asperifolia</i>, with lesser amounts of <i>Carex siccata (= Carex foenea), Galium boreale</i> and <i>Schizachne purpurascens</i>. |
Comm #12137
|
Juncus drummondii - Carex spp. Herbaceous Vegetation
» more details
accession code: VB.CC.33813.CEGL001905
|
Western Ecology Working Group of... |
0
|
This plant association occurs at subalpine and alpine elevations in the Rocky Mountains. In alpine areas they occur on solifluction terraces where soil moisture is abundant and snow duration is 8.5 to 11 months. In the lower elevations associations are found in lush wet meadows, seeps on slopes, and adjacent to streams and ponds. It is also found on rocky, inclined (2-10% slope), southeast-oriented sites which are subxeric to mesic. Substrates are variable and range from skeletal soils with coarse fragments to loamy soils. Cover of small and large rocks and boulders may be low to highly significant with up to 50% soil surface. The vegetation is characterized by a moderately dense to dense herbaceous layer dominated by <i>Juncus drummondii</i> and by species of <i>Carex</i>. Common graminoids include <i>Carex nigricans, Carex pyrenaica</i> in the alpine stands; <i>Carex spectabilis(= Carex tolmiei), Deschampsia caespitosa, Hordeum brachyantherum</i>, and <i>Muhlenbergia richardsonis</i> in the lower elevations. The forb layer is typically sparser than the graminoid layer but may codominate. Species may include <i>Antennaria alpina, Caltha leptosepala, Epilobium anagallidifolium, Erigeron melanocephalus, Ligusticum filicinum</i>, and <i>Sibbaldia procumbens</i>. Typical forbs from lower elevations include <i>Polygonum bistortoides, Iris missouriensis</i>, and <i>Machaeranthera bigelovii (= Aster rubrotinctus)</i>. In the more xeric stands a moss layer dominated by <i>Polytrichum piliferum</i> can be present. |
Comm #12138
|
Abies lasiocarpa / Gymnocarpium dryopteris Forest
» more details
accession code: VB.CC.34632.CEGL002611
|
Western Ecology Working Group of... |
0
|
|
Comm #12139
|
Tsuga heterophylla / Gaultheria shallon Forest
» more details
accession code: VB.CC.21948.TSUGAHETEROPHYL
|
Western Ecology Working Group of... |
0
|
|
Comm #12140
|
Minuartia obtusiloba Herbaceous Vegetation
» more details
accession code: VB.CC.33129.CEGL001919
|
Western Ecology Working Group of... |
0
|
This alpine fell-field herbaceous association occurs in the Rocky Mountains of Colorado and New Mexico. This description is based on information from Great Sand Dunes National Park and Preserve in Colorado. Additional global information will be added as it becomes available. This association can occur on mid- to high-slope ridges, drainage channels, colluvial slopes, interfluves, and saddles. Elevation ranges from 3475 to 3875 m with southeast-, southwest-, and west-facing slopes that can range from 0-30°. Sites are generally rocky with rock (0-40%) and gravel (3-60%). Soils are well-drained sandy loams or somewhat poorly drained loams. In general, the presence of deer, sheep, and pika grazing was observed. The total herbaceous layer cover ranges from 10-60%, with 10-20% graminoid cover and 10-60% forb cover. Dominant graminoid <i>Carex elynoides</i> has up to 20% cover. Other common graminoids at low cover include <i>Festuca brachyphylla</i> and <i>Trisetum spicatum</i>. Dominant forbs at low cover include <i>Minuartia obtusiloba, Silene acaulis var. subacaulescens, Geum rossii var. turbinatum</i>, and <i>Trifolium dasyphyllum</i>. |
add all query results to datacart,
add plots on page to datacart,
drop plots on page from datacart