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Name
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Reference
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Plots↓
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Description |
Comm #11281
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Artemisia tridentata ssp. vaseyana - Purshia tridentata / Pseudoroegneria spicata Shrubland
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accession code: VB.CC.34465.CEGL001032
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Western Ecology Working Group of... |
0
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Comm #11282
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Metrosideros polymorpha Lowland Dry Forest
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accession code: VB.CC.33421.CEGL008029
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Western Ecology Working Group of... |
0
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Comm #11283
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Melocactus intortus - Opuntia rubescens - Pilosocereus royenii - Stenocereus fimbriatus - Oplonia spinosa - Conocarpus erectus Shrubland
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accession code: VB.CC.35699.CEGL007647
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Southeastern Ecology Working Gro... |
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Characteristic species of this cactus thornscrub include <i>Melocactus intortus, Opuntia rubescens, Pilosocereus royenii, Stenocereus fimbriatus, Oplonia spinosa</i>, and <i>Conocarpus erectus</i>. |
Comm #11284
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Abies concolor / Physocarpus malvaceus Forest
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accession code: VB.CC.34456.CEGL000254
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Western Ecology Working Group of... |
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This forest association is limited in its range from central to northern Utah. It is found from 1720-2290 m (5640-7500 feet) in elevation on moderately steep northern slopes. The soils of this association are derived primarily from shaly quartzite. Soils are gravelly with loam to silt loam surface texture. Litter depth averages 6.8 cm. Surface rock exposed is low at 4%. Bare soil exposed averages 1%. <i>Abies concolor</i> is the indicated climax. <i>Pseudotsuga menziesii</i> is a major seral associate, and stands are fairly closed. Occasionally, <i>Acer grandidentatum</i> and <i>Quercus gambelii</i> are represented as seral associates, but they are persistent in the largest canopy openings only. The shrub stratum is dominated by typically dense <i>Physocarpus malvaceus</i>. Other species which commonly occur are <i>Amelanchier alnifolia, Paxistima myrsinites</i>, and <i>Prunus virginiana</i>. The herbaceous layer varies; <i>Carex geyeri</i> is locally abundant. |
Comm #11285
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CEGL006399
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accession code: VB.CC.6892.CEGL006399
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
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Comm #11286
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Pinus ponderosa / Spiraea betulifolia Forest
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accession code: VB.CC.33112.CEGL000202
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Western Ecology Working Group of... |
0
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This is a montane woodland or forest type found on mesic sites on the eastern flank of the Bighorn Mountains of north-central Wyoming at moderate elevations of 1650 to 1800 m (5400-5900 feet). This association occupies easterly slopes that are somewhat steep to steep (23-28°). Soils are sandy loams, derived from granitic parent materials. The overstory is formed by <i>Pinus ponderosa</i>, and the understory is a mixture of low shrubs, grasses, and forbs dominated by the low shrubs <i>Spiraea betulifolia</i> and (often) <i>Symphoricarpos albus</i>. Conspicuous by their absence are <i>Rhus trilobata, Physocarpus monogynus</i>, and <i>Pseudoroegneria spicata (= Elymus spicatus)</i>. The herbaceous layer is a mix of perennial forbs and graminoids, averaging 25-30% cover. Important grasses include <i>Festuca idahoensis, Leucopoa kingii (= Festuca kingii)</i>, and <i>Poa palustris</i>. Common forbs include <i>Balsamorhiza sagittata, Clematis columbiana, Galium boreale, Lupinus argenteus</i>, and <i>Maianthemum racemosum (= Smilacina racemosa)</i>. Nonvascular species are present, but not abundant. Sites supporting this association are more mesic than sites supporting ~<i>Pinus ponderosa / Pseudoroegneria spicata</i> Woodland (CEGL000865)$$ and ~<i>Pinus ponderosa / Festuca idahoensis</i> Woodland (CEGL000857)$$, and drier than ~<i>Pinus ponderosa / Physocarpus monogynus</i> Forest (CEGL000190)$$ sites. |
Comm #11287
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CEGL000761
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accession code: VB.CC.3365.CEGL000761
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #11288
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Pinus ponderosa - Pseudotsuga menziesii / Arctostaphylos nevadensis Woodland
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accession code: VB.CC.32898.CEGL000208
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Western Ecology Working Group of... |
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Steep, rocky slopes near ridgetops that receive intense solar radiation are typical sites for this association. Aspects generally range from southeastern to western, and slope averages 50%. This association usually occupies small areas that are surrounded by more dense forest stands and unforested ridgetops. The rocky, shallow soils have so little moisture-holding capacity that these sites are effectively very dry for plant growth despite the substantial input of precipitation, which ranges from 147-229 cm (58-90 inches). These sites are exposed to high winds. Wind detracts from soil moisture status by blowing off snow, directly desiccating plants, and eroding soil. Elevation ranges from 1280 to 1400 m (4200-4600 feet) to the north and 1280 to 1555 m (4200-5100 feet) to the south. This association includes sparse, mixed age stands of <i>Pinus ponderosa</i> and <i>Pseudotsuga menziesii</i>. In the northern portion of its range trace amounts of <i>Abies grandis</i> occur. These sites are too exposed and hot for <i>Abies grandis</i> to thrive. At the southern end of its range scattered <i>Pinus lambertiana, Abies concolor</i> and <i>Calocedrus decurrens</i> can be found in the stands, and <i>Abies grandis</i> will not be found. Shrub growth is patchy, dominated by <i>Arctostaphylos nevadensis</i>. In the northern portion of the range common associated shrubs include <i>Arctostaphylos patula, Chrysolepis chrysophylla (= Castanopsis chrysophylla)</i>, and <i>Spiraea betulifolia</i>. Common herbaceous species include <i>Calamagrostis rubescens, Achnatherum occidentale (= Stipa occidentalis), Carex geyeri, Festuca occidentalis, Achillea millefolium, Pteridium aquilinum</i>, and <i>Penstemon</i> species. In the southern portion of the range common associated shrubs include <i>Quercus vacciniifolia, Symphoricarpos mollis, Mahonia aquifolium (= Berberis piperiana), Whipplea modesta</i>, and <i>Ceanothus integerrimus</i>. Common herbaceous species include <i>Lupinus albicaulis, Apocynum androsaemifolium, Moehringia macrophylla (= Arenaria macrophylla), Eriophyllum lanatum, Pyrola picta (= Pyrola dentata)</i>, and <i>Eriogonum</i> species. |
Comm #11289
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Carex cusickii Herbaceous Vegetation
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accession code: VB.CC.34022.CEGL000230
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Western Ecology Working Group of... |
0
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This is a minor association throughout its range of the northern Rocky Mountains of Washington and Idaho, and the Blue Mountains of Oregon. It appears within mid to lower montane coniferous forests at 823-1616 m (2700-5300 feet) elevation in narrow to broad, 1-5% gradient valleys. This is a hummocky fen community usually associated with the accumulating margins of old beaver ponds or with fens in wet basins and springs. It can be found growing over stumps and logs, which contributes to the very hummocky appearance and standing water between the hummocks. Soils are organic and remain wet high in the soil profile through the growing season. This fen association is dominated by <i>Carex cusickii</i> with very few other species. <i>Carex utriculata, Polemonium occidentale, Comarum palustre</i>, and <i>Glyceria striata (= Glyceria elata)</i> are the most commonly associated species, although they are usually obscured by <i>Carex cusickii</i>. <i>Alnus incana ssp. tenuifolia</i> is a constant but sparsely appearing companion shrub in this community. |
Comm #11290
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Abies lasiocarpa / Clematis columbiana var. columbiana Forest
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accession code: VB.CC.34636.CEGL000306
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Western Ecology Working Group of... |
0
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