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Name
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Reference
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Plots↓
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Description |
Comm #6461
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CEGL006361
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accession code: VB.CC.6857.CEGL006361
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #6462
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CEGL000903
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accession code: VB.CC.3506.CEGL000903
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #6463
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Festuca campestris - Festuca idahoensis - Geranium viscosissimum Herbaceous Vegetation
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accession code: VB.CC.32234.CEGL005870
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Western Ecology Working Group of... |
0
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This dry-mesic, mid-height grassland is found in the northwestern Great Plains and mountain and foothill slopes on both sides of the Continental Divide of Montana. It occurs on mesic sites from 900-2100 m (3000-7000 feet) elevation on any aspect, becoming restricted to west- and southwest-facing slopes farther north. Slopes vary from flat to gentle toeslopes and lowslopes, generally less than 30%. Soils are loamy and moderately deep on a variety of soil parent materials. This midgrass community is dominated by <i>Festuca campestris</i> and <i>Festuca idahoensis</i>, but <i>Festuca campestris</i> generally has the greater canopy cover and can be more abundant on undisturbed sites. A diverse assemblage of herbaceous species, with a significant forb component, has a combined cover ranging from 30-85%. <i>Carex obtusata</i> may be common, especially on more mesic sites. Other graminoids may also be found, including <i>Danthonia intermedia, Koeleria macrantha, Phleum pratense, Achnatherum nelsonii</i>, and <i>Achnatherum occidentale (= Stipa occidentalis)</i>. The diagnostic forb for this association is <i>Geranium viscosissimum</i>, which is often in association with, in varying combinations, <i>Potentilla gracilis, Potentilla glandulosa</i>, and <i>Carex petasata</i> that individually or in the aggregate have >1% cover. Other forbs may include <i>Achillea millefolium, Galium boreale, Selaginella densa, Lupinus sericeus, Balsamorhiza sagittata, Castilleja rhexiifolia, Calamagrostis rubescens</i>, and <i>Geum triflorum</i>. Shrubs are typically present, though in low stature and cover, generally <10%. Shrub species that may be present include <i>Artemisia frigida, Artemisia campestris, Dasiphora fruticosa ssp. floribunda, Rosa arkansana, Amelanchier alnifolia</i>, and <i>Arctostaphylos uva-ursi</i>. This association is distinguished from the similar <i>~Festuca campestris - Festuca idahoensis</i> Herbaceous Vegetation (CEGL005875)$$ by the characterized presence of <i>Geranium viscosissimum</i> and <i>Potentilla gracilis</i>, with a greater abundance of <i>Achnatherum occidentale (= Stipa occidentalis)</i> and <i>Pseudoroegneria spicata</i> than generally present in the former. |
Comm #6464
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CEGL002591
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accession code: VB.CC.5001.CEGL002591
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EcoArt 2002 |
0
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Comm #6465
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CEGL008097
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accession code: VB.CC.7631.CEGL008097
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #6466
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Croton lucidus Shrubland
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accession code: VB.CC.36512.CEGL004850
NOT CURRENTLY ACCEPTED
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Areces-Mallea, A. E., A. S. Weak... |
0
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Comm #6467
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Dalbergia ecastaphyllum Shrubland
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accession code: VB.CC.36513.CEGL004851
NOT CURRENTLY ACCEPTED
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Areces-Mallea, A. E., A. S. Weak... |
0
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Comm #6468
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Pinus rigida - Hudsonia tomentosa - Pityopsis falcata Sparse Vegetation
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accession code: VB.CC.31337.CEGL006391
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Eastern Ecology Working Group of... |
0
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This community is currently known only from Rhode Island, where large expanses of bare sand occur on inland dunes. Vegetation is sparse, characterized by very stunted <i>Pinus rigida</i> (10 cm tall), <i>Hudsonia tomentosa, Pityopsis falcata</i>, and lichens. The cause of sand exposure is not known with confidence, as the two currently known occurrences are in different environmental settings. One is adjacent to a river and may be the result of past flooding events. The other occurrence is on an island in Narragansett Bay. |
Comm #6469
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CEGL002180
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accession code: VB.CC.4704.CEGL002180
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EcoArt 2002 |
0
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Comm #6470
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Phyllodoce glanduliflora / Sibbaldia procumbens Dwarf-shrubland
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accession code: VB.CC.32179.CEGL005877
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Western Ecology Working Group of... |
0
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Documented from Glacier National Park, Montana. This community is found as small patches from the upper subalpine to alpine environments, its documented elevation range being from 1930 to 2320 m (6330-7610 feet). It is a moderately chionophilous type often noted as a dark green ericaceous border around long-persisting snowbed depressions. It also occurs on somewhat exposed ridges of terraced landscapes on positions where the ericaceous dwarf-shrubs are projecting through the snow in late June and July and the lower, less exposed positions in the landscape are still snow covered. It occurs on gentle terrain with slopes mostly less than 15% and noted to not exceed 35%. The accumulated peat layer is hypothesized to isolate the ericaceous root mat from differences in rock chemistry; therefore the community is found on both calcareous limestones and non-calcareous siltstones and argillites. The amount of exposed rock (which is frost-heaved to the surface) and soil is generally less than 5%, whereas litter in combination with moss and lichen cover form a nearly continuous cover. The heath species, <i>Phyllodoce glanduliflora, Phyllodoce empetriformis</i>, and/or their hybrid <i>Phyllodoce x intermedia</i>, having at least 10% cover, are diagnostic for this community. In general the cover of these dwarf-shrubs exceeds 25% and they form a discontinuous layer about 0.15 m high. <i>Salix arctica</i> and <i>Kalmia microphylla</i> are the only other dwarf-shrubs of note. <i>Carex nigricans</i> is the one graminoid consistently present, though cover seldom exceeds 10%. Other high constancy graminoids include <i>Phleum alpinum, Luzula glabrata</i>, and a variable combination of <i>Juncus</i> species, <i>Juncus mertensianus, Juncus drummondii</i>, and <i>Juncus parryi</i>. Though its cover seldom exceeds 5%, <i>Sibbaldia procumbens</i> is diagnostic of the chionophilous nature of this community; other high-constancy forbs include <i>Erigeron peregrinus, Packera streptanthifolia (= Senecio cymbalarioides), Hieracium gracile, Arenaria capillaris, Hypericum scouleri (= Hypericum formosum)</i>, and <i>Veronica wormskjoldii</i>. |
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