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Add/Drop	Name	Reference	Plots↓	Description
Comm #10471	Dalea foliosa - Mecardonia acuminata - Mitreola petiolata Herbaceous Vegetation » more details accession code: VB.CC.36174.CEGL004292	Southeastern Ecology Working Gro...	0	This herbaceous community is a zonal component of Central Basin Cedar Glades. It occupies small areas along ephemeral streams, where the vegetation is rooted in thin soil over limestone. Stands contain <i>Mecardonia acuminata, Dalea foliosa, Mitreola petiolata, Rudbeckia triloba</i>, and <i>Ludwigia microcarpa</i>, along with various graminoids and nonvascular plants. Sites are seasonally saturated, becoming drier during the heat of summer, when moisture primarily comes from rainstorm events. <i>Dalea foliosa</i> is included in the name to indicate its range and rarity, but this species is not necessarily in all examples of the community; the element name may be revised.
Comm #10472	Pinus ponderosa - Pseudotsuga menziesii / Penstemon fruticosus Woodland » more details accession code: VB.CC.18778.PINUSPONDEROSAP	Western Ecology Working Group of...	0	Known only from a limited area in the eastern Cascades of Washington, this association is restricted climatically and to dry rocky soils derived from sandstone or basalt. An open canopy of Pinus ponderosa and Pseudotsuga menziesii trees with a sparse undergrowth of shrubs and herbaceous plants characterize this association. Shrub and/or herbaceous cover rarely exceed 20%. Hemi-sclerophyllous evergreen shrubs Penstemon fruticosus, Ceanothus velutinus, and Mahonia nervosa characterize this type, although deciduous shrubs Holodiscus discolor and Spiraea betulifolia are usually present but with low cover. Balsamorhiza sagittata and Carex geyeri are the most common herbaceous plants. This association is a small- to large-patch type that appears on dry rocky soils within a forest or woodland matrix.
Comm #10473	CEGL000196 » more details accession code: VB.CC.2822.CEGL000196 NOT CURRENTLY ACCEPTED	EcoArt 2002	0
Comm #10474	Populus deltoides / Sparse Forest » more details accession code: VB.CC.28202.POPULUSDELTOIDE	Western Ecology Working Group of...	0	This mature riparian forest association is found in the middle Rio Grande basin in north-central New Mexico and probably elsewhere in northern New Mexico including the Pecos drainage. It is known from lowland river valleys at elevations that range from 1525 to 1900 m (5000-5800 feet). Sites range from sidebars and islands within channels that are frequently flooded (two-year return interval), to higher terraces that are infrequently flooded (50 years). Soils range from coarse-loamy to sandy-skeletal with wetness (hydric) indicators in the form of gray mottles within 100 cm of the surface (Oxyaquic Ustifluvents and Fluventic Ustochrepts). This type is characterized by open to moderately closed canopies of mature Populus deltoides ssp. wislizeni, with a sparse undergrowth. Species diversity is moderate (55 species), but variable from stand to stand, and represented by scattered bunches and individuals. Salix exigua, Sporobolus cryptandrus, Glycyrrhiza lepidota, and Melilotus officinalis are the most constant species. As a keystone species, the reproduction of Populus deltoides after flooding (and sufficient subsequent base flows) is critical to the sustainability of this community.
Comm #10475	CEGL007181 » more details accession code: VB.CC.7008.CEGL007181 NOT CURRENTLY ACCEPTED	EcoArt 2002	0
Comm #10476	CEGL000608 » more details accession code: VB.CC.3216.CEGL000608 NOT CURRENTLY ACCEPTED	EcoArt 2002	0
Comm #10477	Pinus occidentalis Woodland » more details accession code: VB.CC.35590.CEGL008354	Southeastern Ecology Working Gro...	0	Pine woodland with essentially monospecific canopy of <i>Pinus occidentalis</i>, at mid elevations, in slopes usually facing south. This community occurs in relatively dry, rocky substrate. The understory is poor in species, and a herbaceous layer of <i>Andropogon</i> spp. and other grasses is often present. Other species may include <i>Agave antillana, Salvia</i> spp., and the exotic <i>Melinis minutiflora</i>. DISTRIBUTION: Dominican Republic (Cordillera Central; Sierra de Bahoruco).
Comm #10478	Populus deltoides / Schizachyrium scoparium var. scoparium Woodland » more details accession code: VB.CC.28130.POPULUSDELTOIDE	Western Ecology Working Group of...	0	This type is known only from interdune swales of gypsum dunelands of the Tularosa Basin in south-central New Mexico at elevations around 1220 m (4000 feet) and may also occur in the Trans-Pecos region of Texas. In the interdune areas, water accumulates during the summer rainy season, and the water table remains near the surface (0.5 m). Mature Populus deltoides trees form very open canopies (30% or less cover) with a grassy understory dominated by the gypsophile Schizachyrium scoparium var. scoparium (= Schizachyrium neomexicanum) along with Sporobolus airoides as a common associate. Scattered Baccharis salicina and Tamarix ramosissima are often present in the shrub layer. Although overall diversity is relatively low (29 species), there are six wetland indicators and only one exotic.
Comm #10479	Quercus phellos - Quercus nigra - Quercus alba / Chasmanthium (laxum, sessiliflorum) Forest » more details accession code: VB.CC.27898.QUERCUSPHELLOSQ	Southeastern Ecology Working Gro...	0	This forest is common along small floodplains in the East Gulf Coastal Plain of Mississippi, Alabama, and possibly adjacent states. Quercus phellos or Quercus nigra may dominate this temporarily flooded forest; some stands may contain considerable Liquidambar styraciflua, and Quercus alba may be present. Some other associated species include Pinus glabra, Pinus taeda, Quercus pagoda, Quercus alba, Quercus laurifolia, Quercus similis, Ulmus alata, Carya alba, Carya glabra, Carya ovata, Nyssa biflora, and others. Occurrences often have many species in the canopy, and variability of species composition from occurrence to occurrence may be relatively large. The subcanopy/shrub stratum is well-developed and contains canopy species, as well as Crataegus viridis, Chionanthus virginicus, Acer rubrum, Vaccinium elliottii, Ilex decidua, Ilex vomitoria, Vaccinium stamineum, Cornus florida, Sabal minor, Sambucus canadensis, Crataegus marshallii, Arundinaria gigantea, and others. Some woody vines present. The herbaceous layer also may contain many species with no clear dominants.
Comm #10480	Quercus prinus - (Quercus coccinea, Quercus velutina) / Kalmia latifolia / Vaccinium pallidum Forest » more details accession code: VB.CC.28174.QUERCUSPRINUSQU	Eastern Ecology Working Group of...	0	This chestnut oak forest occurs at relatively low elevations (mostly <900 m) in the central Appalachians and adjacent northern Piedmont and adjacent areas occurring on dry, acidic, infertile soils on mid and upper slopes. The canopy is strongly dominated by Quercus prinus. The most frequent canopy associate is Quercus coccinea, which varies from sparse to codominant. Minor associates frequently include Quercus velutina plus Quercus alba, Quercus rubra, Nyssa sylvatica, Sassafras albidum, and Robinia pseudoacacia. Acer rubrum and Nyssa sylvatica are usually abundant in the understory tree layers. Tall shrubs include Kalmia latifolia (usually dominant), Viburnum acerifolium, with Rhododendron periclymenoides, which occurs with high frequency and occasional high cover. The dwarf- or short-shrub layer is well-developed and includes Vaccinium pallidum, Vaccinium stamineum, and Gaylussacia baccata, any one of which can exhibit patch-dominance. The herb layer generally has sparse cover and includes Aureolaria laevigata, Chimaphila maculata, Comandra umbellata, Cypripedium acaule, Danthonia spicata, Epigaea repens, Hieracium venosum, Lysimachia quadrifolia, Medeola virginiana, Monotropa uniflora, Pteridium aquilinum, and Uvularia puberula. Strong dominance of Quercus prinus in the canopy, frequent and sometimes abundant Rhododendron periclymenoides in the tall-shrub layer, and Vaccinium pallidum present and often abundant as a dwarf-shrub are diagnostics for this type.