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Add/Drop	Name	Reference	Plots↓	Description
Comm #5101	Mortonia scabrella / Dasylirion wheeleri Shrubland » more details accession code: VB.CC.33661.CEGL001279	Western Ecology Working Group of...	0
Comm #5102	Aloysia wrightii / Perityle staurophylla Shrubland » more details accession code: VB.CC.34256.CEGL001280	Western Ecology Working Group of...	0
Comm #5103	Atriplex confertifolia - Ephedra nevadensis Shrubland » more details accession code: VB.CC.34306.CEGL001303	Western Ecology Working Group of...	0
Comm #5104	Artemisia pedatifida / Elymus elymoides Shrubland » more details accession code: VB.CC.34230.CEGL001450	Western Ecology Working Group of...	0	This vegetation type has been reported from basins in south-central Wyoming, where it occurs on level to moderately sloping sites with soils of clay to loam texture. The low vegetation is composed mainly of dwarf-shrubs and grasses. The dwarf-shrub component generally consists of <i>Artemisia pedatifida</i> and at least one other species, either <i>Kochia americana, Atriplex gardneri</i>, or <i>Krascheninnikovia lanata</i>. <i>Elymus elymoides</i> and <i>Poa secunda</i> generally are the major herbaceous species, although <i>Achnatherum hymenoides, Pascopyrum smithii</i>, and <i>Phlox hoodii</i> usually are present and may contribute substantial cover.
Comm #5105	Betula alleghaniensis - Fagus grandifolia - Aesculus flava Forest Alliance » more details accession code: VB.CC.19299.BETULAALLEGHANI	Southeastern Ecology Working Gro...	0	This alliance includes montane forests, mainly of the southern and central Appalachians, dominated by Fagus grandifolia, Betula alleghaniensis, and Aesculus flava, occurring in combination or with strong dominance by one of these species. Other species that may form a typically minor canopy component include Acer saccharum, Betula lenta, Halesia tetraptera var. monticola, Picea rubens, Prunus serotina var. serotina, Quercus rubra, and Tilia americana var. heterophylla. Subcanopy species can include small stems of canopy species as well as Acer spicatum, Acer pensylvanicum, Amelanchier laevis, and Sorbus americana. Shrub density varies between associations, ranging from very high to entirely lacking. Common species in the shrub and sapling strata include Acer pensylvanicum, Acer spicatum, Amelanchier arborea var. austromontana, Aristolochia macrophylla, Cornus alternifolia, Crataegus punctata, Hydrangea arborescens, Ilex montana, Ribes cynosbati, Ribes rotundifolium, Ribes glandulosum, Rubus allegheniensis, Rubus canadensis, Vaccinium erythrocarpum, and Viburnum lantanoides. The composition of herbaceous strata varies between associations. Variability in the herbaceous stratum may be related to aspect, elevation, and soil-nutrient status. Forests on drier, south-facing sites (often open convex slopes) typically have dense herbaceous cover, often approaching 100% coverage, and dominated by species of Carex (Carex aestivalis, Carex brunnescens ssp. sphaerostachya, Carex debilis var. rudgei, Carex intumescens, Carex pensylvanica), while more mesic sites have herbaceous strata dominated by large forbs and patches of ferns, with lesser amounts of sedges. In some forests, seepage areas are common, producing wet microhabitats with unique species assemblages (Chelone lyonii, Circaea alpina, Rudbeckia laciniata, Impatiens pallida, and Monarda didyma). Woody vines, and vining shrubs, may be common, especially in boulderfield associations. Other typical herbaceous species for this alliance include Ageratina altissima var. roanensis, Anemone quinquefolia, Angelica triquinata, Arisaema triphyllum, Eurybia chlorolepis (= Aster chlorolepis), Athyrium filix-femina ssp. asplenioides, Cardamine clematitis, Actaea podocarpa (= Cimicifuga americana), Actaea racemosa (= Cimicifuga racemosa), Circaea alpina, Claytonia caroliniana, Clintonia borealis, Prosartes lanuginosa (= Disporum lanuginosum), Dryopteris campyloptera, Dryopteris intermedia, Dryopteris marginalis, Erythronium umbilicatum ssp. monostolum, Hylocomium splendens, Luzula acuminata, Maianthemum canadense, Medeola virginiana, Oxalis montana, Phacelia bipinnatifida, Phacelia fimbriata, Poa alsodes, Prenanthes altissima, Prenanthes roanensis, Rugelia nudicaulis, Saxifraga micranthidifolia, Solidago curtisii (= Solidago caesia var. curtisii), Solidago glomerata, Stellaria corei, Stellaria pubera, Streptopus lanceolatus var. roseus (= Streptopus roseus), Tiarella cordifolia, Thelypteris noveboracensis, and Trillium erectum. These forests occur in a cool, humid climate, typically at high elevations (3500-6000 feet; 1066-1828 m) on a variety of sites, from upper concave slopes and steep, periglacial boulderfields and talus slopes, to flat ridgetops and saddles between ridges. Associations will vary with elevation, latitude, and geology and occur as small to large patches surrounded by other forest types, montane grasslands, or shrublands.
Comm #5106	Pseudotsuga menziesii / Vaccinium spp. Forest » more details accession code: VB.CC.24040.PSEUDOTSUGAMENZ	Western Ecology Working Group of...	0
Comm #5107	Hawai'i Montane-Subalpine Mesic Forest » more details accession code: urn:lsid:ecoobs.vegbank.org:commConcept:9050-{040B6C4E-BE83-4DED-8A9B-0CF27997881C}	Comer et al. 2003	0
Comm #5108	Alnus serrulata - Rhododendron arborescens / Sarracenia oreophila - Rhynchospora rariflora Shrubland » more details accession code: VB.CC.36397.CEGL003914	Southeastern Ecology Working Gro...	0	This non-alluvial, montane wetland is primarily shrubby, with open herb-dominated areas. Known examples, from Clay County, North Carolina, and Towns County, Georgia, are on shallow slopes, at about 457-550 m (1500-1800 feet) elevation, and have a palustrine hydrology, fed by acidic seepage. Few examples are known and all have been altered considerably by grazing, fire, cultivation, and drainage efforts. Common species in the 1- to 2-m shrub stratum include <i>Alnus serrulata, Rhododendron arborescens, Lyonia ligustrina, Photinia pyrifolia (= Aronia arbutifolia)</i>, and <i>Rosa palustris</i>. <i>Osmunda cinnamomea</i> and <i>Sarracenia oreophila</i> are conspicuous and occur as clumps in herbaceous openings. Other typical herb species include <i>Rhynchospora rariflora, Thelypteris palustris var. pubescens, Sagittaria latifolia (= var. pubescens), Rhexia virginica, Rhexia mariana, Eryngium integrifolium, Helianthus angustifolius, Eupatorium perfoliatum, Eupatorium pilosum, Eupatorium rotundifolium var. ovatum, Eupatorium fistulosum, Eriophorum virginicum, Sanguisorba canadensis</i>, and <i>Juncus caesariensis</i>. Other characteristic species include <i>Andropogon glomeratus, Symphyotrichum dumosum (= Aster dumosus), Betula nigra, Cinna arundinacea, Drosera capillaris, Eleocharis tuberculosa, Eriocaulon decangulare, Eryngium integrifolium, Fuirena squarrosa, Gratiola pilosa, Juncus canadensis, Panicum virgatum, Polygala cruciata, Rhynchospora gracilenta, Scleria muehlenbergii, Saccharum giganteum, Scleria ciliata</i>, and <i>Xyris jupicai</i>. Fire may have been a natural disturbance in this community type, suggested by the large suite of species more typical of fire-maintained communities of the Coastal Plain.
Comm #5109	Atriplex canescens / Calycoseris parryi Shrubland » more details accession code: VB.CC.34009.CEGL001284	Western Ecology Working Group of...	0	This association is warm desertscrub found on nearly level alluvial plains adjacent to the Colorado River, elevation 700-800 m. The common shrubs are <i>Atriplex canescens, Prosopis glandulosa</i> and <i>Suaeda moquinii (= Suaeda torreyana)</i>. The cacti <i>Opuntia erinacea</i> and <i>Opuntia basilaris</i> are common in this shrubland. Common ephemeral species include <i>Calycoseris parryi, Chaenactis stevioides, Erodium texanum</i>, and the Eurasian weed <i>Bromus rubens</i>. Near the river the <i>Prosopis glandulosa</i> density and size increase to form a thicket that resembles a mesquite 'bosque.' The soil is distinctive, a silty loam derived from the Grand Canyon series.
Comm #5110	Atriplex confertifolia - Picrothamnus desertorum Shrubland » more details accession code: VB.CC.34519.CEGL001295	Western Ecology Working Group of...	0	This alkaline desert association occurs the Great Basin, Columbia Basin and Colorado Plateau and is likely more widespread in the intermountain western U.S. It occurs on barren toeslopes and playas on sandy or heavy clay soils, and foothill areas where saline hardpans occur at depths of 1-2 feet. The shrubs are low-statured and open, often with very low cover (5-15%). Dominant shrubs are <i>Atriplex confertifolia</i> and <i>Picrothamnus desertorum (= Artemisia spinescens)</i>. Other shrubs, such as <i>Artemisia tridentata</i> and <i>Sarcobatus vermiculatus</i> in Nevada, and <i>Coleogyne ramosissima, Gutierrezia sarothrae</i>, and <i>Tetradymia spinosa</i> in southern Utah, may be present to codominant. Herbaceous cover is generally very sparse, due to overgrazing or lack of moisture. Graminoids include <i>Achnatherum hymenoides, Pleuraphis jamesii, Poa secunda</i>, and <i>Sporobolus airoides</i>; common forbs include <i>Calochortus nuttallii, Cymopterus newberryi, Encelia nutans</i>, and <i>Sphaeralcea coccinea</i>. The annual invasive grass <i>Bromus tectorum</i> can be abundant, but its presence is variable year to year.