Login | Datasets | Logout
 

View Community Concepts - Summary

««more pages

«previous  | 551 | 552 | page 553 | 554 | 555 | 556 | 557 | 558 | 559 | 560 |  next»
records 5521 through 5530 of 38961

more pages»»

add all query results to datacart,   add plots on page to datacart,   drop plots on page from datacart

Add/Drop Name Reference Plots Description
Comm #5521
 
Quercus alba / Physocarpus opulifolius / Packera plattensis - Hexastylis arifolia var. ruthii Forest
» more details
accession code: VB.CC.19028.QUERCUSALBAPHYS
Southeastern Ecology Working Gro...  0 This community includes Quercus alba-dominated forest vegetation occurring in association with serpentine geology in the Southern Blue Ridge. Quercus alba makes up 50-75% of the canopy, with lesser amounts (less than 25%) of Pinus rigida and Tsuga canadensis. The subcanopy is primarily Acer rubrum, Amelanchier arborea, and Magnolia acuminata. Shrub cover can exceed 80% or be as low as 15%. Kalmia latifolia is a typical shrub, but other common shrubs include Viburnum nudum var. cassinoides, Vaccinium stamineum, and Physocarpus opulifolius. The herbaceous stratum is dominated by Packera plattensis (= Senecio plattensis). Other typical herbs include Hexastylis arifolia var. ruthii, Polygala paucifolia, Epigaea repens, Mitchella repens, Pteridium aquilinum var. latiusculum, Thalictrum macrostylum, Poa saltuensis, Phlox stolonifera, Andropogon gerardii, and Zizia aptera. This community occurs on rocky soils associated with serpentine geology. It is found at moderate elevations (1015 m) on gentle to steep concave slopes with an eastern to northwestern exposure. 
Comm #5522
 
Schizachyrium scoparium - Panicum flexile - Carex microdonta Herbaceous Vegetation
» more details
accession code: VB.CC.37161.CEGL004021
Smith, L. M., N. M. Gilmore, R. ...  0 This upland herbaceous community of west-central Louisiana is characterized by treeless openings dominated by perennial grasses, composites, and legumes, with scattered clumps of shrubby vegetation. These floristically diverse areas are typically less than 1-8 hectares in size and occur within a forest matrix. This community occurs in west-central Louisiana and is associated with outcrops of the Cook Mountain Formation (Eocene). It is known from Winn, Sabine, and Natchitoches parishes. This herb-dominated community develops on soils derived from marly clays and chalk of marine origin. These soils are typically silty clay loams, clays, and silt loams that are well-drained, slowly permeable, and alkaline (pH 7.5-8.0). Subsurface clay layers have calcareous concretions and shrink-swell properties. This community occurs in a nearly level to gently rolling landscape, on ridgetops and gentle slopes that often border small streams. Moisture regimes are typically dry to dry-mesic. The combination of frequent fire, high soil pH and extreme physical soil properties are thought to be important in maintaining this community. Grasses include <i>Schizachyrium scoparium, Andropogon glomeratus, Andropogon gerardii, Sporobolus</i> spp., <i>Setaria parviflora, Panicum flexile, Aristida</i> spp., <i>Paspalum floridanum</i>, and <i>Sorghastrum nutans</i>. Other characteristic species include <i>Carex cherokeensis, Hedyotis nigricans, Dalea candida, Dalea purpurea, Ruellia humilis, Desmanthus illinoensis, Salvia azurea, Sporobolus vaginiflorus var. ozarkanus (= Sporobolus ozarkanus), Sporobolus compositus var. compositus, Helenium autumnale, Koeleria macrantha, Silphium laciniatum, Echinacea pallida</i>. 
Comm #5523
 
Carex lasiocarpa - Carex oligosperma / Sphagnum spp. Herbaceous Vegetation
» more details
accession code: VB.CC.35976.CEGL002265
Midwestern Ecology Working Group...  0 This graminoid poor fen community is found in the Great Lakes region of the United States and Canada, as well as elsewhere in central Canada. Stands are found in peatlands with low exposure to mineral-rich groundwater, including basin fens, shores above the level of seasonal flooding and larger peatlands. Water hydrology is saturated, and surface water is slightly acidic and nutrient poor. The vegetation is dominated by graminoids, with up to 25% shrub cover, and scattered trees. The dominant graminoid is <i>Carex lasiocarpa</i>, and typical associates include <i>Carex chordorrhiza, Carex limosa, Carex oligosperma, Rhynchospora alba, Trichophorum caespitosum (= Scirpus cespitosus)</i>, and <i>Scheuchzeria palustris</i>. Forbs include <i>Arethusa bulbosa, Symphyotrichum boreale (= Aster borealis), Calopogon tuberosus, Pogonia ophioglossoides, Sarracenia purpurea</i>, and <i>Solidago uliginosa</i>. The low-shrub layer contains <i>Andromeda polifolia, Betula pumila, Chamaedaphne calyculata, Larix laricina, Salix discolor, Salix pedicellaris</i>, and <i>Vaccinium oxycoccos</i>. The moss layer is virtually continuous, and is dominated by <i>Sphagnum capillifolium, Sphagnum fuscum</i>, and <i>Sphagnum magellanicum</i>. Diagnostic features include the dominance of graminoids, particularly <i>Carex lasiocarpa</i>, the almost continuous layer of Sphagnum peat, and few minerotrophic indicators. 
Comm #5524
 
Larrea tridentata / Bouteloua gracilis Shrubland
» more details
accession code: VB.CC.33568.CEGL001266
Western Ecology Working Group of...  0  
Comm #5525
 
Schizachyrium scoparium - Marshallia caespitosa - Nemastylis geminiflora Herbaceous Vegetation
» more details
accession code: VB.CC.35455.CEGL004022
Southeastern Ecology Working Gro...  0 This calcareous prairie community is restricted to the Morse Clay soil series in northwestern Louisiana and adjacent Arkansas. It is known from Bossier, Caddo, Red River, Rapides, and Natchitoches parishes in Louisiana and from Lafayette, Columbia, (and possibly Little River) counties in Arkansas. This community is dominated by grasses and forbs with scattered shrubby vegetation and, occasionally, trees. Typical grasses include <i>Schizachyrium scoparium, Andropogon glomeratus</i>, and <i>Aristida</i> spp. Other common species include <i>Manfreda virginica, Baptisia nuttalliana, Arnoglossum plantagineum, Dalea purpurea, Eryngium yuccifolium, Houstonia purpurea var. calycosa, Monarda fistulosa, Nemastylis geminiflora, Neptunia lutea, Mimosa nuttallii (= Mimosa quadrivalvis var. nuttallii), Panicum virgatum, Parthenium hispidum, Asclepias viridis, Marshallia caespitosa var. signata, Delphinium carolinianum, Echinacea pallida</i>, and <i>Asclepias tuberosa</i>. Typical woody components include <i>Crataegus</i> spp., <i>Pinus echinata, Prunus angustifolia, Ilex decidua</i>, and <i>Cercis canadensis</i>. This community occurs in the Coastal Plain of southwestern Arkansas and western Louisiana and is associated with alluvium deposits in the former Red River floodplain. It occurs over the Morse Clay soil series on historic alluvial deposits, areas that are not part of the active floodplain. Soils are typically alkaline clays, with high shrink-swell character, and gilgai microtopography. The combination of periodic fire, high soil pH, and extreme physical soil properties are thought to be important in maintaining this community in a landscape otherwise dominated by forests (at least historically). 
Comm #5526
 
A.782
» more details
accession code: VB.CC.2413.A782 NOT CURRENTLY ACCEPTED
EcoArt 2002  0 This alliance includes shrublands dominated by ~Quercus mohriana$ on slopes and canyons of lower to middle elevations, occurring primarily over shallow soils derived from limestone or caliche. Associated species include ~Juniperus pinchotii, Quercus pungens, Bouteloua curtipendula, Aristida$ spp., and ~Tridens$ spp. Where sandstone outcrops are exposed along the Caprock Escarpment, ~Quercus havardii$ is a common associate. 
Comm #5527
 
CEGL001215
» more details
accession code: VB.CC.3809.CEGL001215
EcoArt 2002  0  
Comm #5528
 
I.A.3.N.e
» more details
accession code: VB.CC.473.IA3NE
EcoArt 2002  0  
Comm #5529
 
CEGL008500
» more details
accession code: VB.CC.7823.CEGL008500 NOT CURRENTLY ACCEPTED
EcoArt 2002  0  
Comm #5530
 
CEGL008501
» more details
accession code: VB.CC.7824.CEGL008501 NOT CURRENTLY ACCEPTED
EcoArt 2002  0  

««more pages

«previous  | 551 | 552 | page 553 | 554 | 555 | 556 | 557 | 558 | 559 | 560 |  next»
records 5521 through 5530 of 38961

more pages»»