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Name
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Reference
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Plots↓
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Description |
Comm #10951
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Salix irrorata Shrubland
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accession code: VB.CC.21826.SALIXIRRORATASH
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Western Ecology Working Group of... |
0
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Comm #10952
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CEGL003443
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accession code: VB.CC.5493.CEGL003443
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #10953
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A.64
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accession code: VB.CC.2281.A64
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #10954
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Pinus edulis / Muhlenbergia pauciflora Woodland
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accession code: VB.CC.32806.CEGL000785
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Western Ecology Working Group of... |
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From Muldavin et al. (2000b): This is a major community of the San Andres and Oscura mountains of New Mexico and is also known from the Sacramento and Capitan mountains that are directly east of White Sands Missile Range. This association typically occurs on cool and steep escarpments at moderate to high elevations (1830-2410 m [6000-7900 feet]). Soils derive mostly from limestone, are moderately shallow, and range from weakly developed aridic Inceptisols to more developed and mesic Mollisols. Soils tend to be fine loamy, but can have 10 to 50% gravel and cobble content at the surface. Caliche or secondary calcium carbonate accumulations are also common. This open woodland is dominated by <i>Pinus edulis</i> with <i>Juniperus monosperma</i> as a subdominant or codominant. Scattered patches of <i>Muhlenbergia pauciflora</i> characterize this type along with other bunchgrasses such as <i>Bouteloua curtipendula</i>, along with <i>Achnatherum scribneri (= Stipa scribneri)</i> and <i>Koeleria macrantha</i> (usually under the trees). Grass cover seldom exceeds 25%, and can occasionally range below 5%. Stands can have a diverse shrubby layer (33 species noted), but shrubs usually do not exceed 10% total cover. <i>Cercocarpus montanus, Quercus x pauciloba (= </i><i>Quercus undulata)</i><i>, Yucca baccata, Rhus trilobata, Gutierrezia sarothrae, Nolina microcarpa</i>, and <i>Opuntia phaeacantha</i> are the most consistent and abundant associates. Several forbs are possible (35+ species), but only <i>Viguiera dentata</i> is moderately constant. |
Comm #10955
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Juniperus osteosperma / Artemisia tridentata Woodland
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accession code: VB.CC.33710.CEGL000730
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Western Ecology Working Group of... |
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This sparse woodland association has been reported from semi-arid foothills, plateaus and mountains throughout much of the western Rocky Mountains, Colorado Plateau, and Great Basin. Elevation ranges from 1220 to 2260 m (4000-7400 feet). This community generally occurs on a variety of slopes and aspects, often at the break between foothill and basin. Soils are generally coarse-textured, calcareous alluvial or eolian deposits derived from sandstone and shale. Evidence of erosion such as gullies and rills is not uncommon. There are generally significant amounts of bare ground, litter, and desert pavement at the soil surface. Rock cover is variable. The vegetation is characterized by an open tree canopy dominated by <i>Juniperus osteosperma</i> with <i>Artemisia tridentata ssp. wyomingensis</i> dominating the sparse to moderately dense short-shrub layer. Tree canopy cover values are over 5%, but typically less than 20%, and canopy height is usually 2-10 m. Other shrubs, such as <i>Atriplex canescens, Atriplex confertifolia, Artemisia nova, Chrysothamnus viscidiflorus, Ephedra nevadensis, Ericameria nauseosa, Gutierrezia sarothrae, Opuntia</i> spp., or <i>Purshia</i> spp., may be present but generally with low cover. The sparse to moderately dense herbaceous layer is dominated by graminoids such as <i>Achnatherum hymenoides, Aristida</i> spp., <i>Bouteloua</i> spp., <i>Carex filifolia, Elymus elymoides, Hesperostipa comata, Pleuraphis jamesii (= Hilaria jamesii), Pascopyrum smithii, Poa secunda, Pseudoroegneria spicata, Sporobolus</i> spp., and introduced annual <i>Bromus</i> spp. Associated forbs may include <i>Artemisia frigida, Eriogonum</i> spp., <i>Gayophytum racemosum, Leptodactylon pungens, Phlox hoodii</i>, and <i>Plantago patagonica</i>. |
Comm #10956
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Juniperus osteosperma / Pleuraphis mutica Woodland
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accession code: VB.CC.33865.CEGL000736
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Western Ecology Working Group of... |
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This woodland community is widespread north of the Mogollon Rim, in Arizona and adjacent mountains of New Mexico. This association usually occurs on elevated or valley plains at elevations between 1310 and 1800 m (4300-5900 feet). Soils generally have a heavy clay content, and average annual precipitation is between 43 and 46 cm (17-18 inches) (to 51 cm [20 inches] per year in the <i>Pinus monophylla var. fallax (= Pinus edulis var. fallax)</i> phase). In this juniper savanna, <i>Juniperus osteosperma</i> dominates the tree canopy, but rarely exceeds 10% cover. Other trees present are <i>Juniperus coahuilensis (= Juniperus erythrocarpa)</i> and <i>Pinus monophylla var. fallax</i> (occurs as phase in low sun mild climates). A mesquite phase also occurs in drier areas. Shrubs are common to well represented (especially on heavily grazed sites) and include <i>Prosopis</i> spp., <i>Mimosa aculeaticarpa var. biuncifera, Gutierrezia sarothrae, Nolina microcarpa, Acacia greggii</i> and <i>Opuntia</i> spp. The herbaceous layer is abundant to luxurious with high diversity. <i>Pleuraphis mutica (= Hilaria mutica)</i> usually dominates this layer, with <i>Panicum obtusum</i> and <i>Hilaria belangeri</i> also common. Other graminoids present are <i>Bouteloua curtipendula, Bouteloua gracilis, Bouteloua hirsuta, Leptochloa panicea ssp. mucronata (= Leptochloa mucronata), Panicum capillare</i>, and <i>Bromus rubens</i>; important forbs include <i>Helianthus annuus</i> and <i>Machaeranthera gracilis</i>. |
Comm #10957
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Pinus ponderosa / Amelanchier alnifolia Woodland
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accession code: VB.CC.24562.PINUSPONDEROSAA
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Western Ecology Working Group of... |
0
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This woodland is a minor association occurring on cool slopes in the foothills of the Bear's Paw Mountains. Stands are often park-like with an open canopy of Pinus ponderosa. Amelanchier alnifolia, Prunus virginiana, Spiraea betulifolia, and Symphoricarpos occidentalis form a lush understory. Pseudoroegneria spicata is common in the sparse ground layer. Soils are loamy and slightly acidic. |
Comm #10958
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Juniperus scopulorum / Artemisia nova Woodland
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accession code: VB.CC.33797.CEGL000742
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Western Ecology Working Group of... |
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This <i>Juniperus scopulorum</i>-dominated open woodland has been described from dry rocky ridges and upper slopes in the Pryor Mountains in Montana. Elevation ranges from 1830-1980 m. Sites have shallow, rocky soils derived from calcareous parent materials. Ground surface usually exceeds 50% cover of gravel and rock (combined) with bare soil exceeding 5%. Stands typically have a relatively sparse tree canopy (10% cover) of <i>Juniperus scopulorum</i> with scattered <i>Pseudotsuga menziesii</i>. The sparse short-shrub layer (15% canopy cover) is dominated by <i>Artemisia nova</i> with scattered <i>Petrophyton caespitosum, Gutierrezia sarothrae</i>, and <i>Ribes cereum</i>. The sparse herbaceous layer (<25% cover) is dominated by the graminoids <i>Poa secunda, Pseudoroegneria spicata</i>, and <i>Koeleria macrantha</i>. Forb cover is generally very sparse (<10%) but may be relatively diverse and includes species such as <i>Allium</i> sp., <i>Antennaria microphylla, Eriogonum ovalifolium, Phlox hoodii, Packera cana (= Senecio canus)</i>, and the cactus <i>Opuntia polyacantha</i>. Adjacent vegetation includes ~<i>Pseudotsuga menziesii / Symphoricarpos oreophilus</i> Forest (CEGL000462)$$ in relatively moist drainages. In the Great Basin, there are two common woodland types, ~<i>Juniperus osteosperma / Artemisia nova</i> Woodland (CEGL000728)$$ and ~<i>Juniperus osteosperma / Artemisia nova</i> / Rock Woodland (CEGL000729)$$, that are similar except for being dominated by a different species of <i>Juniperus</i>. |
Comm #10959
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Juniperus scopulorum / Piptatherum micranthum Woodland
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accession code: VB.CC.36981.CEGL000747
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Midwestern Ecology Working Group... |
0
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This Rocky Mountain juniper community type is found in the western Great Plains of the United States. Stands occur almost exclusively on steep (30-70%) north-facing slopes. The soils are shallow and poorly developed; loamy sands and sandy loams predominate. The vegetation is an evergreen woodland with moderately open to dense cover of <i>Juniperus scopulorum, Juniperus virginiana</i>, or introgressant hybrids of the two. Woody species other than <i>Juniperus scopulorum</i> or <i>Juniperus virginiana</i> occur sporadically, but none achieves prominence. Most of the trees are small (10-20 cm dbh) and few exceed 6 m. Where the density of the tree canopy is high, the short-shrub and herbaceous strata are not well-developed. In more open places <i>Piptatherum micranthum (= Oryzopsis micrantha)</i> is often abundant. Other common herbaceous species include <i>Campanula rotundifolia, Galium boreale</i>, and <i>Maianthemum stellatum</i>. Mosses and lichens can cover much of the ground. |
Comm #10960
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Artemisia arbuscula - Cercocarpus ledifolius / Pseudoroegneria spicata - Poa secunda Scrub
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accession code: VB.CC.31595.CEGL001487
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Western Ecology Working Group of... |
0
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