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Add/Drop	Name	Reference	Plots↓	Description
Comm #10271	Lantana camara Shrubland Alliance » more details accession code: VB.CC.28493.LANTANACAMARASH	Areces-Mallea, A. E., A. S. Weak...	0	This shrubland, dominated by Lantana camara, is a disturbance type, following fire.
Comm #10272	V.B.2.N.c » more details accession code: VB.CC.595.VB2NC	EcoArt 2002	0
Comm #10273	A.704 » more details accession code: VB.CC.2336.A704	EcoArt 2002	0	Abandoned pastures and fields dominated by the shrub ~Piper aduncum$.
Comm #10274	Juniperus pinchotii Woodland Alliance » more details accession code: VB.CC.18457.JUNIPERUSPINCHO	Southeastern Ecology Working Gro...	0	This alliance includes evergreen short woodlands or shrublands on slopes, often over gypsum or caliche-influenced soils, primarily in the Trans-Pecos and Rolling Plains of Texas, but ranges into Oklahoma. Common associates include Ziziphus obtusifolia, Prosopis glandulosa, Quercus mohriana, Quercus pungens, Quercus havardii, Dalea formosa, Yucca spp., Bouteloua gracilis, Bouteloua curtipendula, Tridens spp., Sporobolus spp., and Pleuraphis mutica (= Hilaria mutica). These woodlands often occur within a grassland-shrubland matrix.
Comm #10275	Pteridium caudatum Herbaceous Alliance » more details accession code: VB.CC.17795.PTERIDIUMCAUDAT	Southeastern Ecology Working Gro...	0	This alliance consists of fern thickets, dominated by Pteridium caudatum. This alliance is very limited in the southeastern United States, being restricted to fire-disturbed upland hammocks in southern Florida, but is widespread in the Neotropics. Includes hammocks and South Florida Slash Pine uplands following severe fire, often with scattered tropical hardwoods.
Comm #10276	Pinus palustris / Quercus margarettiae - Quercus incana / Schizachyrium scoparium Atlantic Woodland » more details accession code: VB.CC.28280.PINUSPALUSTRISQ	Southeastern Ecology Working Gro...	0	This is a subxeric Pinus palustris-dominated woodland of the Outer Coastal Plain of South Carolina, found on well-drained (but not xeric) sandy soils, including the Chipley series. Pinus palustris dominates the open canopy of stands of this association. The subcanopy contains Quercus margarettiae and Quercus incana, in preference to Quercus laevis (which would be typical of more xeric sites). Some Quercus falcata may also be present. Schizachyrium scoparium is a typical herbaceous component; wiregrasses (Aristida spp.) are not typically found, as this association is restricted to the wiregrass gap of central South Carolina. Pteridium aquilinum is also common, particularly under certain fire regimes.
Comm #10277	CEGL001094 » more details accession code: VB.CC.3693.CEGL001094 NOT CURRENTLY ACCEPTED	EcoArt 2002	0
Comm #10278	Juniperus virginiana var. silicicola - Zanthoxylum clava-herculis - Quercus virginiana - (Sabal palmetto) / Sageretia minutiflora - (Sideroxylon tenax) Woodland » more details accession code: VB.CC.19414.JUNIPERUSVIRGIN	Southeastern Ecology Working Gro...	0	This calciphilic community occurs on calcareous coastal sands, shell hashes, Amerindian shell middens, and natural shell deposits, from northeastern Florida north to South Carolina (southern Atlantic coast), in maritime-influenced landscapes. The canopy consists of Juniperus virginiana var. silicicola, Sabal palmetto, Celtis laevigata var. laevigata, Zanthoxylum clava-herculis, Quercus virginiana, Osmanthus americanus, and other species. Shrubs are prominent and may include Ilex vomitoria, Yucca aloifolia, Sageretia minutiflora, Forestiera segregata, Frangula caroliniana, Opuntia humifusa var. austrina, and others. Composition is very variable from site to site, depending on environmental conditions and accidents of establishment and persistence.
Comm #10279	Abies lasiocarpa - Picea engelmannii / Xerophyllum tenax - Luzula glabrata var. hitchcockii Woodland » more details accession code: VB.CC.28272.ABIESLASIOCARPA	Western Ecology Working Group of...	0	This association is broadly distributed throughout the mid to upper subalpine zones of the northern Rocky Mountains, concentrated in northern Idaho and western Montana and extending into the Canadian Rockies of southwestern Alberta. The demonstrated elevation range is from 1555 to 2135 m in the northern portion of its distribution and 1740 to 2380 m in its southern occurrence. It is strongly associated with moderate to steep warm slopes, usually having a southeast- through south- to west-facing exposure, usually occurring from midslopes upwards to slope shoulders and occasionally extending to high-elevation benchlands as well. It is characterized by having relatively heavy snowpack that persists well into the growing season. These sites have well-drained soils derived from a host of parent materials, including volcanics (granitics, andesite, rhyolite) sedimentaries (limestone, dolomite, siltstone), metamorphics (quartzite, argillite, gneiss, mica-schist) and metasediments. The range in soil surface texture is broad, from silty clays to sandy loams with the gravel content averaging about 30% near the surface and increasing markedly with depth. These are very open woodland sites with the tree component often occurring as scattered clumps and, at the highest and coldest extremes, approaching a krummholz form with trees as short as 5.5 m (18 feet) in height when mature. The canopy is generally strongly dominated by Abies lasiocarpa followed distantly in order of decreasing average cover by Pinus albicaulis, Pinus contorta, and Picea engelmannii (this order may change slightly by region and is undoubtedly due to differences in type and severity of disturbance). The undergrowth component is species-poor. Tall shrubs are virtually unrepresented, and the short shrubs Vaccinium membranaceum and Lonicera utahensis have high constancy but only the former has coverage exceeding 5%. The dwarf-shrub component has only two constant species, Vaccinium scoparium and Vaccinium myrtillus, only one of which exhibits high cover in a given location; Phyllodoce empetriformis may be a conspicuous component but its presence is very inconsistent. The graminoid component is singularly dominated by Luzula glabrata with a cover of 5 to 20% (extremes to 50 or 60%, where Xerophyllum tenax cover is low); Carex geyeri is a common component only in central Idaho representation of the type. Xerophyllum tenax is almost invariably the dominant herb, joined by a number of other forbs, none of which express high constancy.
Comm #10280	Chrysosplenium americanum Herbaceous Vegetation » more details accession code: VB.CC.21866.CHRYSOSPLENIUMA	Eastern Ecology Working Group of...	0	This type includes small herbaceous seepage areas with scattered cover of forbs. Herbs are strongly dominant and tend to be relatively diverse, especially where there is greater enrichment. Characteristic species can include Chrysosplenium americanum, Cardamine bulbosa, Circaea alpina, Viola cucullata, Chelone glabra, Glyceria melicaria, Glyceria striata, Cinna arundinacea, Impatiens capensis, Poa paludigena, Carex scabrata, Mimulus ringens, Symplocarpus foetidus, Pilea pumila, Galium triflorum, Saxifraga pensylvanica, Thelypteris noveboracensis, Veratrum viride, Hydrocotyle americana, Onoclea sensibilis, Laportea canadensis, Arisaema triphyllum, Tiarella cordifolia, Carex gynandra, Geum rivale, and the mosses Rhizomnium punctatum (= Mnium punctatum), Rhizomnium appalachianum, Brachythecium rivulare, Thuidium delicatulum, Rhynchostegium serrulatum, and Bryhnia novae-angliae. Typically the community is over-topped by trees and shrubs from the surrounding forest, although large examples will be open.