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Comm #11681	Schizachyrium scoparium - Bouteloua curtipendula - Bouteloua gracilis Central Plains Herbaceous Vegetation » more details accession code: VB.CC.36707.CEGL002246	Midwestern Ecology Working Group...	0	This little bluestem - sideoats grama grassland community is found in the south-central Great Plains of the United States. Stands occur on level to moderately sloping uplands, but are more likely to be on steep ravine slopes. The loam, clay loam, silty loam, or silty soils are usually formed over limestone. They are shallow to moderately deep, well-drained, and usually contain a substantial amount of rock fragments. The vegetation often forms two layers, a shorter layer of grasses and a taller layer of mixed grasses and forbs. Cover is moderately dense to dense in most stands. The vegetation is characteristically dominated by three species, <i>Schizachyrium scoparium, Bouteloua curtipendula</i>, and <i>Bouteloua gracilis</i>. The first two are mid grasses and the latter is a short grass. <i>Schizachyrium scoparium</i> is often the tallest dominant grass, reaching 0.5-0.8 m in Oklahoma. <i>Andropogon gerardii, Sporobolus cryptandrus</i>, and <i>Sorghastrum nutans</i> are present, especially on lower slopes. The short grasses <i>Buchloe dactyloides</i> and <i>Bouteloua hirsuta</i> grow on upper slopes and level ground. Forbs include <i>Ambrosia psilostachya, Dalea enneandra, Echinacea angustifolia, Liatris punctata, Calylophus serrulatus</i>, and <i>Psoralidium tenuiflorum</i>.
Comm #11682	Eriogonum fasciculatum Rock Outcrop Shrubland » more details accession code: VB.CC.18262.ERIOGONUMFASCIC	Western Ecology Working Group of...	0
Comm #11683	Artemisia arbuscula ssp. longiloba / Pascopyrum smithii Shrub Herbaceous Vegetation » more details accession code: VB.CC.18264.ARTEMISIAARBUSC	Western Ecology Working Group of...	0
Comm #11684	Artemisia australis - Schiedea globosa Coastal Dry Dwarf-shrubland » more details accession code: VB.CC.26562.ARTEMISIAAUSTRA	Western Ecology Working Group of...	0
Comm #11685	Ranunculus aquatilis - Callitriche palustris Herbaceous Vegetation » more details accession code: VB.CC.24238.RANUNCULUSAQUAT	Western Ecology Working Group of...	0
Comm #11686	CEGL000368 » more details accession code: VB.CC.2989.CEGL000368 NOT CURRENTLY ACCEPTED	EcoArt 2002	0
Comm #11687	Ericameria nauseosa Desert Wash Shrubland » more details accession code: VB.CC.31121.CEGL002261	Western Ecology Working Group of...	0	This association is found in or near temporary watercourses on point bars, basin floors, and low stream terraces in western Colorado and eastern Utah. Stands have been found between 1189 and 2104 m (3900-6900 feet) elevation. Sites are flat to gently sloping (&lt;3°) and of any aspect. The unvegetated surface is mostly bare soil, sand, and/or loose rocks. There is usually little litter, but sometimes woody debris can be deposited by floods. Parent materials are variable, but sandstone, shale, and gneiss are most common on sampled stands. Soils are rapidly drained to well-drained sands or sandy loams. This shrubland association has sparse to moderate total vegetation cover (1-65%). This association is characterized by an open short-shrub layer distributed in linear rows along the intermittent drainages. <i>Ericameria nauseosa</i> is the dominant shrub with 1-15% cover. Other shrubs are typically present but contribute little cover. These include <i>Artemisia tridentata, Atriplex canescens, </i><i>Atriplex confertifolia, </i><i>Ephedra viridis, </i><i>Fraxinus anomala</i><i>, Gutierrezia sarothrae, </i><i>Purshia stansburiana, Quercus havardii</i>, and <i>Sarcobatus vermiculatus</i>. The herbaceous stratum has sparse to moderate cover. The exotic <i>Bromus tectorum</i> is often abundant. Other herbaceous species commonly found are <i>Achnatherum hymenoides,</i><i> Descurainia pinnata,</i><i> Elymus elymoides, </i><i>Glycyrrhiza lepidota, </i><i>Hesperostipa comata, Hordeum jubatum</i>, and <i>Pleuraphis jamesii</i>.
Comm #11688	Amelanchier utahensis - Artemisia tridentata (ssp. vaseyana, ssp. wyomingensis) Shrubland » more details accession code: VB.CC.31508.CEGL002820	Western Ecology Working Group of...	0	This association has been described from Dinosaur National Monument, the Roan Plateau and the Piceance Basin in northwestern Colorado and adjacent Utah. It also occurs in southwestern Wyoming. Sites are on level to moderately sloping hills, valleys and benches. Elevation ranges from 2165 to 2600 m, and stands may be oriented to any aspect. The deep, well-drained soils are derived from sandstone, shale, loess or limestone and range in texture from clay loam and silt loam to loamy sand. Organic litter is typically a significant component of the ground surface cover. The vegetation is characterized by the codominance in the canopy of <i>Artemisia tridentata</i> (ssp. <i>vaseyana</i> or ssp. <i>wyomingensis</i>, or sometimes a hybrid of the two) and <i>Amelanchier utahensis</i> with 15 to 55% total cover. It often takes the appearance of a tall shrubland type in which clumps of serviceberry grow in a matrix of sagebrush. Although serviceberry and sagebrush are visually dominant, in some stands <i>Symphoricarpos oreophilus</i> may have the highest cover of the three shrub species. <i>Chrysothamnus viscidiflorus, Mahonia repens</i>, and <i>Purshia tridentata</i> may be minor components of the shrub canopy. <i>Quercus gambelii</i>, if present, has less than 1% cover. Graminoids tend to dominate the well-developed herbaceous layer; typical species are <i>Pascopyrum smithii (= Agropyron smithii), Melica spectabilis (= Bromelica spectabilis), Carex geyeri, Koeleria macrantha, Poa fendleriana, Achnatherum nelsonii ssp. dorei (= Stipa columbiana), Hesperostipa comata (= Stipa comata)</i>, and <i>Achnatherum lettermanii (= Stipa lettermanii)</i>. The forb component of the understory is usually diverse and may contribute significant cover, especially in stands that have been grazed. <i>Achillea millefolium, Balsamorhiza sagittata, Comandra umbellata, Crepis acuminata, Eriogonum umbellatum, Lathyrus lanszwertii var. leucanthus (= Lathyrus leucanthus), Lupinus argenteus, Penstemon caespitosus, Sphaeralcea coccinea</i>, and <i>Viola nuttallii</i> are common species. <i>Poa pratensis</i> may be the dominant grass in areas that have a history of grazing.
Comm #11689	CEGL000605 » more details accession code: VB.CC.3213.CEGL000605 NOT CURRENTLY ACCEPTED	EcoArt 2002	0
Comm #11690	Carex prairea - Schoenoplectus pungens - Rhynchospora capillacea Herbaceous Vegetation » more details accession code: VB.CC.36973.CEGL002267	Midwestern Ecology Working Group...	0	This community type is found primarily in the northern tallgrass prairie region of western Minnesota, northwestern Iowa and eastern Dakotas, where calcium-rich groundwater emerges as springs. These springs are commonly associated with porous bedrock or coarse-textured deposits such as beach or outwash. The water is cold, anoxic, and circumneutral. These conditions promote the accumulation of peat. The vegetation is dominated by graminoids, but may contain small shrubs. Many species are inhibited by the water conditions and thus the vegetation cover is moderate. The predominant vegetation is 25-35 cm tall while some species grow to 75-85 cm. The most abundant species are <i>Calamagrostis stricta, Carex prairea, Carex sterilis, Eleocharis</i> spp., <i>Lobelia kalmii, Muhlenbergia glomerata, Muhlenbergia richardsonis, Parnassia glauca, Rhynchospora capillacea, Schoenoplectus pungens (= Scirpus pungens), Spartina pectinata</i>, and <i>Triglochin maritima</i>. Shrubs that occur with the herbaceous species include <i>Betula pumila, Dasiphora fruticosa ssp. floribunda (= Pentaphylloides floribunda)</i>, and <i>Salix</i> spp. (<i>Salix candida</i> is highly characteristic; others include <i>Salix x bebbii</i> and <i>Salix discolor</i>). Prairie herb associates include <i>Andropogon gerardii, Doellingeria umbellata (= Aster umbellatus), Cirsium muticum, Liatris ligulistylis, Lilium philadelphicum, Solidago nemoralis, Oligoneuron riddellii (= Solidago riddellii), Zigadenus elegans</i>, and <i>Zizia aurea</i>.