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Add/Drop	Name	Reference	Plots↓	Description
Comm #11821	CEGL007628 » more details accession code: VB.CC.7240.CEGL007628	EcoArt 2002	0
Comm #11822	CEGL001404 » more details accession code: VB.CC.3988.CEGL001404 NOT CURRENTLY ACCEPTED	EcoArt 2002	0
Comm #11823	Abies lasiocarpa / Valeriana sitchensis Forest » more details accession code: VB.CC.34676.CEGL000345	Western Ecology Working Group of...	0	This association occurs only in the Cascade Range and Olympic Mountains of Washington at elevations of 1400-2000 m. It is most common in relatively dry climatic zones for western Washington, and especially in the rainshadow of major volcanoes. Sites have well-drained soils and southern aspects. This is a needle-leaved evergreen conifer forest or woodland of relatively short stature. <i>Abies lasiocarpa</i> is always dominant (mean cover 65%). Small amounts of <i>Tsuga mertensiana</i> or <i>Abies amabilis</i> may sometimes occur in the tree regeneration layer. The relatively lush herbaceous understory is dominated by the forb <i>Valeriana sitchensis</i> and typically also the graminoid <i>Luzula glabrata var. hitchcockii</i>. The dwarf-shrub <i>Vaccinium deliciosum</i> is usually also present (mean cover 10%). Other frequent understory species that occur in low abundance are <i>Arnica latifolia, Rubus lasiococcus, Veratrum viride, Viola orbiculata, Polygonum bistortoides, Lupinus arcticus ssp. subalpinus, Polemonium pulcherrimum, Pedicularis racemosa</i>, and <i>Ligusticum grayi</i>. This association is distinguished from similar associations by >3% cover of <i>Valeriana sitchensis</i> and the presence of <i>Vaccinium deliciosum</i>, along with little to no <i>Abies amabilis, Tsuga heterophylla, Tsuga mertensiana, Rhododendron albiflorum</i> (<10%), <i>Vaccinium membranaceum</i> (<5%), <i>Vaccinium scoparium</i>, or <i>Phyllodoce empetriformis</i>.
Comm #11824	Artemisia filifolia / Bouteloua eriopoda Shrubland » more details accession code: VB.CC.34073.CEGL001077	Western Ecology Working Group of...	0	This sand sagebrush shrubland occurs in Bandelier National Monument in north-central New Mexico, in the northern Jornada del Muerto and Tulerosa basins in south-central New Mexico, and within Petrified Forest National Park in the southern Colorado Plateau. It occurs at elevations ranging from 1416-1748 m (4646-5735 feet). Stands frequently occur on flat to rolling sandsheets or sandy plains, mesatops, lower hillslopes and dunes. Within Bandelier National Monument, this association occurs at 1660 m (5430 feet) in elevation on a sloping east-facing bench above the mouth of Canon de los Frijoles. Slopes range from 0-27%. Soils are often sandy, but range from fine sandy loams to silty-clay loams with an abrupt clay or caliche layer within 100 cm of the surface, to rocky Aridisols derived from basalt colluvium. The ground surface is characterized by shrubs rooted in exposed sandy soil with scattered grass bunches and litter patches. The vegetation is characterized by an open to moderately dense (10-30 % cover) short-shrub layer (<1.5 m tall) dominated by <i>Artemisia filifolia</i>, with an open to moderately dense (5-60% cover) grassy understory dominated by <i>Bouteloua eriopoda</i> or sometimes codominated with <i>Bouteloua gracilis </i>or <i>Sporobolus cryptandrus</i>. Other common species include <i>Aristida</i> spp., <i>Gutierrezia sarothrae, Opuntia</i> spp., and <i>Sporobolus flexuosus</i>. In the southern portion of its range, Chihuahuan Desert species are usually present, such as <i>Yucca elata</i> and <i>Dasyochloa pulchella</i>.
Comm #11825	Betula occidentalis / Purshia tridentata / Hesperostipa comata Shrubland » more details accession code: VB.CC.33939.CEGL001084	Western Ecology Working Group of...	0	This association has been described from extreme southeastern Idaho, in Caribou County, in the Soda Springs valley. The only stand is known from Formation Springs Preserve. It occurs in the foothills of a small mountain range in a semi-arid region. This region is characterized by thrust faulting, with north/south-trending ranges and intervening broad, gentle valleys. The climate is semi-arid. Summers are warm and winters cold. This association occurs on a gently sloping valley-side at approximately 1873 m (6140 feet) elevation. Formation Spring emanates from the base of the Aspen Range and flows across the valley floor for about 1 mile, where it then sinks into the porous substrate. The water of the spring is supersaturated with very pure calcium carbonate (CaCO2), and extensive deposits of travertine have precipitated out of solution along the course of the spring water. The direction of waterflow has been continuously changed by damming action resulting from the travertine deposition. This process has occurred over thousands of years and has resulted in many features, including active and inactive (dry) rimmed pools that have built up to a depth of 3.7 m (12 feet), and level barren plains. This plant association occurs somewhat away from the creek, but the presence and dominance of <i>Betula occidentalis</i> implies a permanent, subsurface water source. This association is otherwise poorly defined and described. The broad-leaved deciduous tall (8-12 m) shrub <i>Betula occidentalis</i> occurs within a matrix of the shorter (1-2 m tall) broad-leaved deciduous shrub <i>Purshia tridentata</i>. The understory apparently has an unusual assemblage of herbaceous species, with the perennial bunchgrass <i>Hesperostipa comata (= Stipa comata)</i> the most common species.
Comm #11826	CEGL006271 » more details accession code: VB.CC.6787.CEGL006271 NOT CURRENTLY ACCEPTED	EcoArt 2002	0
Comm #11827	CEGL006272 » more details accession code: VB.CC.6788.CEGL006272 NOT CURRENTLY ACCEPTED	EcoArt 2002	0
Comm #11828	Cercocarpus montanus / Pseudoroegneria spicata Shrubland » more details accession code: VB.CC.33980.CEGL001090	Western Ecology Working Group of...	0	This association occurs on windswept ridgelines and rocky slopes on foothills and high plateaus in northwestern Colorado, north-central Utah and western Wyoming. It often occurs as inclusions within larger areas of sagebrush. Elevations range from 1511 to 2600 m (4960-8530 feet). Slopes are moderately to very steep and generally are oriented to a north to east aspect, except in Utah, where south-facing stands occur. The substrate is often calcareous, such as limestone or colluvium derived from formations that include limestone. Soils are shallow to deep, rocky sandy or silty loams, and the soil surface is abundantly covered with organic litter. The vegetation is characterized by a shrub canopy dominated by <i>Cercocarpus montanus</i> (20-45% cover) with an herbaceous understory dominated by <i>Pseudoroegneria spicata</i> (5-15% cover). The total vegetative cover is moderate to dense, ranging from 25% to more than 65%. Associated shrubs include <i>Artemisia tridentata (ssp. vaseyana, ssp. wyomingensis), Amelanchier utahensis, Quercus gambelii, Tetradymia canescens, Symphoricarpos oreophilus</i>, and <i>Eriogonum microthecum</i>. The herbaceous stratum has sparse to moderate cover and consists mostly of graminoids. Associated graminoids include <i>Poa fendleriana, Koeleria macrantha, Achnatherum hymenoides, Poa secunda</i>, and <i>Hesperostipa comata</i>. Typical forbs present include <i>Stenotus acaulis</i> and <i>Eriogonum umbellatum</i>.
Comm #11829	Bouteloua hirsuta - Bouteloua curtipendula Herbaceous Vegetation » more details accession code: VB.CC.34250.CEGL001764	Western Ecology Working Group of...	0	In Oklahoma, this association occurs on shallow or coarse soils, in central and western Oklahoma. Other characteristic species include <i>Aristida purpurascens, Bouteloua rigidiseta, Croton willdenowii (= Crotonopsis elliptica), Chaetopappa asteroides, Echinocereus reichenbachii (= Echinocereus caespitosa), Lithophragma tenellum, Opuntia macrorhiza, Schizachyrium scoparium, Rhus glabra, Sida abutifolia (= Sida procumbens)</i>, and <i>Thelesperma filifolium</i>.
Comm #11830	Elaeagnus commutata / Pascopyrum smithii Shrubland » more details accession code: VB.CC.34482.CEGL001099	Western Ecology Working Group of...	0	This American silverberry shrubland occurs in the northwestern portion of the Great Plains of the United States and Canada. Stands occur on a variety of glacial landforms including kames, eskers, and areas of till and outwash. They are common on north-facing slopes and sites where moisture is more abundant, including along river valley slopes. The vegetation forms open thickets within the mixed-grass prairie landscape. <i>Elaeagnus commutata</i> is generally a short to medium height shrub, although it can grow up to 5 m. These thickets are often associated with <i>Rosa woodsii</i> and <i>Symphoricarpos occidentalis</i>. Other plants associated with this type include <i>Pascopyrum smithii, Elymus trachycaulus, Anemone multifida, Symphyotrichum laeve (= Aster laevis), Campanula rotundifolia, Festuca altaica (= Festuca scabrella), Geum triflorum, Heuchera richardsonii</i>, and <i>Potentilla arguta</i>. This shrubland occurs in relatively open stands.