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Add/Drop	Name	Reference	Plots↓	Description
Comm #6011	Pinus ponderosa / Carex inops - Festuca roemeri Woodland » more details accession code: VB.CC.32900.CEGL003348	Western Ecology Working Group of...	0
Comm #6012	Juniperus osteosperma / Hesperostipa comata Woodland » more details accession code: VB.CC.31935.CEGL002815	Western Ecology Working Group of...	0	This woodland association occurs on slopes, hills, benches and alluvial terraces in the Colorado Plateau of western Colorado and eastern Utah. Sites are on level to moderately sloping terrain that may be oriented to any aspect. Elevation of most stands ranges from 1423 to 1880 m (4670-6165 feet) but may occur as high as 2200 m (7215 feet) on warm southerly exposures that discourage establishment of <i>Pinus edulis</i>. Most sites have sandy soils derived from eolian sands, sandstone or alluvium, but at Capitol Reef National Park, some stands occur on barren shale slopes of the Carmel Formation. Soils are generally sandy loams, with a few stands on clay loams. Gravel, bare ground or cryptobiotic crusts cover much of the unvegetated surface. The vegetation is characterized by a savanna-like distribution of 2- to 5-m tall <i>Juniperus osteosperma</i> trees that range in cover from 5 to 15% and the bunchgrass <i>Hesperostipa comata</i> that ranges in cover from 5 to 25%. Shrubs are generally present but too sparse to form a layer. Common species include <i>Coleogyne ramosissima, Ephedra torreyana, Ephedra viridis, Eriogonum microthecum, Gutierrezia sarothrae</i>, and <i>Opuntia polyacantha</i>. The herbaceous layer is diverse and has up to 30% cover, including <i>Hesperostipa</i>. Other characteristic graminoids include <i>Poa fendleriana, Bouteloua eriopoda, Bouteloua gracilis, Pleuraphis jamesii</i>, and <i>Achnatherum hymenoides</i>. Forbs may be diverse but contribute little cover; <i>Hymenoxys richardsonii</i> and <i>Mirabilis multiflora</i> are among the few species recorded in sampled plots.
Comm #6013	Fraxinus quadrangulata - Quercus macrocarpa - Quercus muehlenbergii / Arundinaria gigantea ssp. gigantea / Elymus spp. Woodland » more details accession code: VB.CC.35939.CEGL004436	Southeastern Ecology Working Gro...	0	This historic community was restricted to the Bluegrass Region of Kentucky. The tree layer was dominated by variable mixtures of <i>Fraxinus quadrangulata, Quercus macrocarpa</i>, and <i>Quercus muehlenbergii</i>, with various other species as well, especially <i>Juglans nigra, Aesculus glabra</i>, and <i>Gymnocladus dioicus</i>, and in moister areas <i>Carya laciniosa</i> and <i>Quercus shumardii</i>. <i>Arundinaria gigantea ssp. gigantea</i> was locally dominant, and sometimes very extensive. This type graded locally to <i>Arundinaria</i>-dominated areas with scattered to nearly absent trees [see ~<i>Fraxinus quadrangulata - Quercus macrocarpa / Arundinaria gigantea ssp. gigantea</i> Wooded Shrubland Alliance (A0794)$$]. Shrubs include <i>Symphoricarpos orbiculatus</i>. The herb layer was well-developed in more open areas (probably as a result of fire and bison-browse), with species such as <i>Trifolium stoloniferum, Elymus</i> spp., <i>Ageratina altissima var. altissima, Amphicarpaea bracteata</i>, and possibly <i>Tridens flavus</i> and <i>Poa pratensis</i>?. The presence of <i>Acer saccharum</i> in present vegetation related to this historic type is a symptom of fire suppression.
Comm #6014	North Pacific Interior Wet Toeslope/Riparian Mixed Conifer Forest » more details accession code: urn:lsid:ecoobs.vegbank.org:commConcept:9031-{C52DCDE3-19B2-4403-9951-862E3E40F947}	Western Ecology Working Group of...	0
Comm #6015	North Pacific Interior Wet Toeslope/Riparian Hybrid White Spruce-Western Red-cedar Forest » more details accession code: urn:lsid:ecoobs.vegbank.org:commConcept:9030-{3A57DC28-A8EB-4843-BF49-D4A1D7C4E8FE}	Western Ecology Working Group of...	0
Comm #6016	CEGL006188 » more details accession code: VB.CC.6729.CEGL006188 NOT CURRENTLY ACCEPTED	EcoArt 2002	0
Comm #6017	Carya glabra - Fraxinus americana / Acer leucoderme / Piptochaetium avenaceum Woodland » more details accession code: VB.CC.19034.CARYAGLABRAFRAX	Southeastern Ecology Working Gro...	0	This association is a woodland dominated by Carya glabra, Quercus stellata, and Fraxinus americana, occurring in nutrient-rich soils derived from a base-rich granite. Stands are found at low elevations from 90-180 m (300-600 feet) in the lower Piedmont of Georgia, and possibly Alabama and South Carolina. Other canopy species include Carya carolinae-septentrionalis, Quercus muehlenbergii, and Ulmus alata. Subcanopy species include Acer leucoderme, Quercus rubra, and Sideroxylon lycioides; tall shrubs are Cercis canadensis var. canadensis and Vaccinium arboreum. The shrub stratum includes Rhus aromatica var. aromatica, Vaccinium stamineum, Crataegus spathulata, Callicarpa americana, Hypericum hypericoides ssp. hypericoides, Ptelea trifoliata, and Hydrangea quercifolia. Woody vines include Parthenocissus quinquefolia, Vitis rotundifolia, and Bignonia capreolata. Typical species of the diverse herb stratum include Piptochaetium avenaceum, Carex spp., Schizachyrium scoparium, Antennaria plantaginifolia, Arundinaria gigantea, Asplenium platyneuron, Symphyotrichum spp. (= Aster spp.), Dichanthelium boscii, Galium circaezans, Heuchera villosa, Houstonia longifolia, Leersia sp., Lespedeza repens, Oxalis violacea, Pleopeltis polypodioides ssp. michauxiana, Potentilla canadensis, Pseudognaphalium obtusifolium ssp. obtusifolium, Solidago sp., Tragia urticifolia, Manfreda virginica, Scutellaria ovata, Thalictrum thalictroides, and Woodsia obtusa.
Comm #6018	Populus tremuloides / Amelanchier alnifolia - Symphoricarpos oreophilus / Mixed Graminoid Forest » more details accession code: VB.CC.31932.CEGL002816	Western Ecology Working Group of...	0	This aspen forest is found in northwestern Colorado and southwestern Wyoming on moderate to moderately steep slopes (10-30%) of mountains, plateaus and buttes between 2242 and 2724 m elevation. It occurs in small stands on toeslopes, slump slopes, benches, and ridges often with north aspects or in other areas that collect snow or have a higher soil moisture throughout the growing season (seeps). The unvegetated surface generally has low cover of small and large rocks and high cover of leaf litter and downed wood, although in some stands the cover by large rocks may be as high as 40%. Soils are well-drained to poorly drained with soil textures ranging from sandy loam to silt to clay loam. The vegetation is characterized by an open to dense tree canopy 2-10 m tall that is dominated by <i>Populus tremuloides</i> with open to dense shrub layers dominated by tall shrubs <i>Amelanchier alnifolia</i> or <i>Amelanchier utahensis</i> and short shrub <i>Symphoricarpos oreophilus</i>. Scattered <i>Pseudotsuga menziesii</i> or <i>Pinus flexilis</i> may be present in some stands. Other tall shrubs may include <i>Salix scouleriana</i> and <i>Prunus virginiana</i>. Short- and dwarf-shrub associates, such as <i>Artemisia tridentata ssp. tridentata, Artemisia tridentata ssp. vaseyana, Juniperus communis, Mahonia repens, Paxistima myrsinites, Rosa woodsii, Shepherdia canadensis</i>, and <i>Ribes cereum</i>, may be present with low cover. The herbaceous layer is characterized by mixed graminoids, such as <i>Achnatherum lettermanii, Hesperostipa comata, Bromus</i> sp., <i>Carex geyeri</i>, and <i>Poa secunda</i>, and low cover of diverse forbs. Exotic species <i>Poa pratensis</i> and <i>Taraxacum officinale</i> are common in some stands.
Comm #6019	Schizachyrium scoparium - Sorghastrum nutans - Andropogon gerardii - Bifora americana Vertisol Herbaceous Vegetation » more details accession code: VB.CC.18864.SCHIZACHYRIUMSC	Southeastern Ecology Working Gro...	0	This tallgrass prairie community occurs on Vertisols in the southern and central portions of the Blackland Prairie and in the Fayette Prairie regions of Texas. In the northern Blackland Prairie region this type dominates areas where gilgai are poorly developed, as well as occurring in microhighs of gilgai microtopography in close association with Tripsacum dactyloides - Panicum virgatum - Sorghastrum nutans - Helianthus maximiliani Herbaceous Vegetation (CEGL002217). Secondary grass species include Nassella leucotricha, Bouteloua curtipendula, Elymus canadensis, and Koeleria macrantha (= Koeleria pyramidata). Associated forbs and legumes include Silphium radula, Helianthus maximiliani, Hedyotis nigricans, Symphyotrichum ericoides (= Aster ericoides), Phlox pilosa, Callirhoe alcaeoides, Castilleja purpurea, Salvia azurea, Eryngium yuccifolium, Liatris mucronata, Dalea multiflora, Dalea tenuis, Astragalus crassicarpus, and Mimosa roemeriana (= Schrankia roemeriana).
Comm #6020	A.1034 » more details accession code: VB.CC.804.A1034 NOT CURRENTLY ACCEPTED	EcoArt 2002	0	Shrublands in this southwestern alliance occur along drainages that dissect bajadas and mesas in the Chihuahuan and Sonoran deserts. Elevations range from 640-1030 m. Stands are restricted by the arid climate to arroyo riparian zones and adjacent floodplains. The alluvial soils are generally sandy often with cobbles and boulders. These shrublands utilize moisture from the water table and are dependent on the intermittent flows and flooding of the channel to supplement soil moisture and maintain the groundwater levels. The sparse to moderately dense shrub layer is dominated by ~Hymenoclea monogyra$ usually with significant densities of ~Baccharis sarothroides$. ~Ambrosia ambrosioides$ is also typically present in lesser amounts. Less frequent or abundant shrubs include ~Acacia greggii, Parkinsonia microphylla, Celtis pallida, Eriogonum fasciculatum, Olneya tesota$, and ~Prosopis velutina$. The herbaceous layer is typically sparse. Two common herbs are ~Mentzelia pumila$ and ~Polanisia dodecandra ssp. trachysperma (= Polanisia trachysperma)$. Adjacent vegetation includes stands of ~Prosopis$ spp. bosques or desertscrub dominated by ~Larrea tridentata$ or ~Prosopis$ spp.