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Name
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Reference
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Plots↓
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Description |
Comm #12151
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Agastache urticifolia - Heliomeris multiflora Herbaceous Vegetation
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accession code: VB.CC.34709.CEGL001937
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Western Ecology Working Group of... |
0
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Comm #12152
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A.554
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accession code: VB.CC.2198.A554
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #12153
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Heracleum maximum - Rudbeckia occidentalis Herbaceous Vegetation
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accession code: VB.CC.37247.CEGL001940
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Gregory, S. 1983. Subalpine forb... |
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This association is a rich meadow type known only from northwestern Wyoming, but it is well-documented with 24 plots. It occurs primarily in the subalpine zone, at elevations of 1700 to 2700 m (6450-8900 feet), on moderate to steep slopes (average 17%), up to 40%. It occurs on benches and lower slopes of moist pockets facing any aspect; the local topography is even to concave, and stands are generally moist throughout the summer. Soils are rich with clay and organic matter; textures include silty clay loam to sandy clay. It is dominated by tall forbs, characterized by the presence of one or more of the species <i>Heracleum maximum, Rudbeckia occidentalis</i>, or <i>Thalictrum fendleri</i>. Usually two of the three species will be abundant, although stands do occur with only one of the three species present. Other forbs commonly present include <i>Achillea millefolium, Delphinium x occidentale</i>, and <i>Geranium viscosissimum</i>. Graminoids are typically present but in lower abundance than all forbs combined. Graminoid species include <i>Poa pratensis, Bromus vulgaris, Bromus carinatus, Elymus caninus (= Agropyron caninum), Carex hoodii, Elymus trachycaulus</i>, and <i>Festuca idahoensis</i>. |
Comm #12154
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Aletes anisatus - Scutellaria brittonii Scree Herbaceous Vegetation
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accession code: VB.CC.34691.CEGL001948
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Western Ecology Working Group of... |
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Comm #12155
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Geum rossii Herbaceous Vegetation
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accession code: VB.CC.33781.CEGL001964
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Western Ecology Working Group of... |
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This alpine meadow association occurs in the mountains of Idaho, Wyoming, Colorado, Utah and Nevada. 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 occurs in cirque and valley floors, high colluvial slopes, and along ridgelines. The elevation ranges from 3700 to 3835 m on predominantly northwest-facing slopes. Slopes are generally steep and very rocky. Soils are well-drained and sandy loam or silt loam in texture. Ground surface cover can be variable with bare soil (0-20%), litter and duff (10-77%), gravel (0-15%), rock (2-20%), bedrock (0-15%), and mosses (0-40%). The herbaceous layer dominates this association with <i>Geum rossii var. turbinatum</i> ranging in cover from 20 to 50%. <i>Artemisia scopulorum</i> is also found within the majority of sites surveyed with up to 10% cover. Carices are present within all of the sampled sites (up to 20%) with a wide variety of species including <i>Carex heteroneura, Carex haydeniana, Carex elynoides, Carex microptera, Carex siccata (= Carex foenea var. foenea)</i>, and <i>Carex albonigra</i>. |
Comm #12156
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Caltha leptosepala Herbaceous Vegetation
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accession code: VB.CC.34094.CEGL001954
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Western Ecology Working Group of... |
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This wet meadow association occurs in the Rocky Mountains from Colorado to Montana, west into Utah and Idaho. Stands occur in the subalpine and lower alpine zones on perennially saturated ground in narrow forest openings to broad mountain valley bottoms and is often associated with shallow seeps on hillslopes. This association typically occupies seeps, streamsides, springs, and wet, subirrigated meadows and on slopes up to 30%. Substrates are always saturated at the surface with moderate to high water-holding capacity and fine-loamy, fine, and clayey skeletal particle size classes. Soils are somewhat variable, ranging in texture from organic muck and peat to sandy loam to fine-textured and originating from organic deposits, glacial-fluvial deposits, or granitic igneous rock. Litter and duff are typically 10-20% cover, and moss can cover up to 50% of the ground surface. The vegetation is characterized by a moderate to dense (30-100% cover) herbaceous layer dominated by <i>Caltha leptosepala</i> and low cover of <i>Cardamine cordifolia</i> and <i>Rhodiola rhodantha (= Sedum rhodanthum)</i>. Many graminoids and forbs that tolerate long-term soil saturation may also be present. <i>Carex aquatilis</i> is very common and is sometimes a codominant with <i>Caltha leptosepala</i>. <i>Deschampsia caespitosa</i> may be present in small amounts. Other common associates include graminoids <i>Calamagrostis canadensis, Carex aquatilis</i> (and many other wet sedges), <i>Eleocharis</i> spp., <i>Poa arctica, Juncus drummondii</i>, and forbs <i>Arnica mollis, Erigeron peregrinus, Equisetum arvense, Ligusticum tenuifolium, Oxypolis fendleri, Parnassia fimbriata, Pedicularis groenlandica, Polygonum bistortoides, Senecio triangularis, Sibbaldia procumbens, Stellaria umbellata, Swertia perennis</i>, and <i>Trollius laxus ssp. albiflorus</i>. Scattered shrubs may be present. Stands can be recognized by the prominence of <i>Caltha leptosepala</i>, a near absence of shrubs, and low cover of <i>Cardamine cordifolia</i> and <i>Rhodiola rhodantha</i>. In forest openings this association is found with <i>Salix planifolia</i> shrublands and <i>Carex aquatilis</i> and <i>Senecio triangularis</i> meadows. On high-elevation peatlands it occurs with stands of <i>Eleocharis quinqueflora</i> and <i>Salix planifolia</i> shrublands. |
Comm #12157
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CEGL001194
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accession code: VB.CC.3789.CEGL001194
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EcoArt 2002 |
0
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Comm #12158
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V.A.7.N.e
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accession code: VB.CC.612.VA7NE
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EcoArt 2002 |
0
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Comm #12159
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V.A.7.N.a
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accession code: VB.CC.613.VA7NA
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EcoArt 2002 |
0
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Comm #12160
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V.A.4.N.b
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accession code: VB.CC.614.VA4NB
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EcoArt 2002 |
0
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