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Add/Drop	Name	Reference	Plots↓	Description
Comm #5401	Quercus macrocarpa - Carya illinoinensis / Cornus drummondii - Frangula caroliniana Forest » more details accession code: VB.CC.34881.CEGL004196	Southeastern Ecology Working Gro...	0	This forest is found on well-developed alluvial floodplains and terraces along major streams and rivers in the Lampasas Cutplain in central Texas. Soils are deep, variable in texture and poorly drained to well-drained. Typically, <i>Quercus macrocarpa</i> and <i>Carya illinoinensis</i> codominate the canopy of this forest. Other characteristic canopy trees may include a variable mixture of <i>Ulmus crassifolia, Ulmus americana, Celtis laevigata</i><i> var. laevigata, Celtis laevigata var. texana</i><i>, Juniperus virginiana, Morus rubra</i>, and <i>Juglans nigra</i>. The midstory includes many canopy species and some small trees, including <i>Cornus drummondii, Frangula caroliniana, Ilex decidua</i>, and <i>Sideroxylon lanuginosum</i>. The understory, which can be dense in patches, may include many of the above plus <i>Forestiera pubescens, Viburnum rufidulum</i>, and <i>Ptelea trifoliata</i>. Components of the sparse to patchy ground cover include <i>Geum canadense, Sanicula canadensis, Ruellia drummondiana, Ruellia humilis, Chasmanthium latifolium, Galium circaezans, Desmodium tweedyi, Verbesina virginica, Vernonia baldwinii, Desmodium paniculatum</i>, and <i>Cocculus carolinus</i>. Vines, including <i>Toxicodendron radicans, Parthenocissus quinquefolia, Smilax rotundifolia, Smilax bona-nox</i>, and <i>Vitis cinerea</i>, are a common component of this association and are typically present in all strata.
Comm #5402	Menodora spinescens Dwarf-shrubland Alliance » more details accession code: VB.CC.17841.MENODORASPINESC	Western Ecology Working Group of...	0	This xeromorphic upland shrubland alliance occurs locally in the Mojave Desert and southern Great Basin. Stands are found on ridges, hills, slopes and upper bajadas. Substrates are shallow, rocky soils derived from bedrock or alluvium. The vegetation is characterized by an open, xeromorphic, short-shrub layer (0.5-2 m tall) that is dominated or codominated by Menodora spinescens. Other shrubs and dwarf-shrubs present may include Picrothamnus desertorum (= Artemisia spinescens), Atriplex confertifolia, Coleogyne ramosissima, Ephedra nevadensis, Hymenoclea salsola, Krascheninnikovia lanata, Lepidium fremontii, Lycium andersonii, Sphaeralcea ambigua, and Tetradymia axillaris. Emergent Yucca brevifolia may be scattered through the stand. Herbaceous cover is sparse or absent.
Comm #5403	CEGL000684 » more details accession code: VB.CC.3289.CEGL000684 NOT CURRENTLY ACCEPTED	EcoArt 2002	0
Comm #5404	CEGL003056 » more details accession code: VB.CC.5267.CEGL003056 NOT CURRENTLY ACCEPTED	EcoArt 2002	0
Comm #5405	Carex lasiocarpa - Rhynchospora alba - Scheuchzeria palustris Herbaceous Vegetation » more details accession code: VB.CC.22104.CAREXLASIOCARPA	Midwestern Ecology Working Group...	0	This graminoid bog crest community type is found in northern Minnesota and adjacent Canada. Stands occur only in areas that are genuinely ombrotrophic, that is, receiving minerals only from precipitation and having a pH less than 4.1. This is a raised bog in which pool formations have developed near bog crests. Species in these bog pools are typically absent from typical habitats in raised bogs, where the water table may drop as much as 70-100 cm below the surface for a period of time. This community is dominated by sedges, cottongrasses, and Sphagnum spp. Scattered and stunted trees may be found in this community, but their canopy never covers more than 30%. The most abundant species are Carex lasiocarpa, Carex limosa and Scheuchzeria palustris. The presence of Rhynchospora alba and Sphagnum cuspidatum and the maritime species Utricularia cornuta also characterize this community.
Comm #5406	Alaskan Pacific Maritime Coastal Meadow and Slough-Levee » more details accession code: urn:lsid:ecoobs.vegbank.org:commConcept:8941-{72F10098-244B-49B7-9F68-EB240B710190}	Western Ecology Working Group of...	0
Comm #5407	Pinus contorta / Sphagnum spp. Woodland » more details accession code: VB.CC.33151.CEGL003201	Western Ecology Working Group of...	0	This plant association is found primarily on peat averaging 90 cm (35 inches) thick. It occurs on the oldest deglaciated landscapes of the Yakutat Forelands, Alaska, including kettle-kame topography and in small scattered stands on distal outwash and uplifted tidal flats. <i>Pinus contorta var. contorta</i> dominates this woodland type and varies from 3-12 m (9-40 feet) tall and 7-35 cm (3-14 inches) in diameter. Downed logs are uncommon. Limited regeneration is common for <i>Picea sitchensis</i> and <i>Tsuga heterophylla</i>, and only <i>Pinus contorta var. contorta</i> grows to tree height. Subshrubs, such as <i>Empetrum nigrum, Vaccinium oxycoccos (= Oxycoccus palustris)</i>, and <i>Ledum groenlandicum</i>, are common. Typical herbaceous species are <i>Cornus canadensis, Sanguisorba menziesii, Carex aquatilis var. dives (= Carex sitchensis)</i>, and <i>Trichophorum caespitosum</i>. <i>Sphagnum</i> species dominate the moss layer.
Comm #5408	Schizachyrium scoparium - Sorghastrum nutans - Bouteloua curtipendula Gravel Grassland » more details accession code: urn:lsid:vegbank.org:commConcept:33940-{F780A6B3-7837-42D6-A3B7-65120B082641}	NatureServe Biotics 2019	0	This community type is found in the central tallgrass prairie region of the midwestern United States, in Illinois. Stands occur on moderate to gentle lower slopes. The soils are coarse and well-drained but sites usually have adequate soil moisture due to runoff from upslope. Many sites have alkaline soils derived from calcareous gravel. The vegetation of this community is medium-tall (1 m) and moderately open to moderately dense. Graminoids are dominant, but forb diversity is moderate to high. Woody species are rare. The most abundant species are <i>Bouteloua curtipendula, Schizachyrium scoparium, Sorghastrum nutans</i>, and <i>Sporobolus heterolepis</i>. Other common species include <i>Andropogon gerardii, Oligoneuron album</i>, and <i>Hesperostipa spartea</i>.
Comm #5409	Pinus albicaulis / Carex filifolia Woodland » more details accession code: VB.CC.33221.CEGL003133	Western Ecology Working Group of...	0	This woodland association is currently only known from Yosemite National Park in California, and the following description is based on occurrences there. Additional information will be added as it becomes available. Stands of this association typically grow on southwest to southeast exposures between 3110 and 3445 m (10,200-11,300 feet) of elevation. Slopes are moderate to steep. Sites are very stony, often dominated by granitic slabs or boulders, with patches of sandy soil interspersed. Annual precipitation is quite high, with the bulk falling as winter snow. Summers are brief and droughty. Stands of this association have an open canopy of <i>Pinus albicaulis</i> with an intermittent herbaceous understory. Often trees form krummholz. Occasional individuals of <i>Pinus contorta</i> may be present. The shrub layer is absent or very sparse. Graminoids are the most common plants in the herbaceous layer, most often <i>Carex exserta</i>. In the rockiest stands <i>Carex exserta</i> may be absent. Other graminoids present may include <i>Carex filifolia, Carex subnigricans, Elymus elymoides</i>, and/or <i>Trisetum spicatum</i>. The most common forbs include <i>Penstemon heterodoxus, Antennaria corymbosa, Cistanthe umbellata, Gayophytum diffusum, Pyrrocoma apargioides</i>, and/or <i>Silene sargentii</i>.
Comm #5410	Atriplex canescens - Artemisia tridentata Shrubland » more details accession code: VB.CC.23266.ATRIPLEXCANESCE	Western Ecology Working Group of...	0	This shrubland is found in the Colorado Plateau, Great Basin, and Mojave Desert. Stands occur on level plains, valley bottoms, stream terraces, low and mid-slopes. Slopes are typically less than 25% and it is found on all aspects. Substrates are well-drained, silty loam and clay fine-textured soils. Some stands may be subject to periodic flooding. Evidence of erosion such as rills and gullies is common. The vegetation is characterized by a sparse to moderately dense short-shrub layer (15-35% cover) that is codominated by Atriplex canescens and Artemisia tridentata. Associated shrubs include Chrysothamnus viscidiflorus, Ephedra nevadensis, Ericameria nauseosa, Gutierrezia spp., Krascheninnikovia lanata, Lycium spp., and Opuntia spp. The sparse to moderately dense herbaceous layer (10-20% cover) is dominated by graminoids with scattered forbs. Achnatherum hymenoides, Bouteloua gracilis, Elymus elymoides, and Pascopyrum smithii are common grasses. Forbs may include species of Cirsium, Eriogonum, Penstemon, or Sphaeralcea. Introduced species such as Agropyron cristatum, Bromus rubens, and Bromus tectorum are common in disturbed stands.