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Add/Drop	Name	Reference	Plots↓	Description
Comm #12541	Quercus alba - Quercus stellata - Quercus velutina / Cornus florida / Andropogon gerardii Woodland » more details accession code: VB.CC.19394.QUERCUSALBAQUER	Eastern Ecology Working Group of...	0	This formerly open white oak woodland occurs in remnant and degraded patches in the Western Allegheny Plateau and is now extremely rare. Historically this appears to have been the dominant community type found in the larger preglacial Teays River valleys in the unglaciated Allegheny Plateau. The vegetation was described as open and park-like with a well-developed herbaceous layer comprised of a dry-mesic prairie association. It occurred on the slightly drier slopes and on well-drained level land underlain by lacustrine clays (Minford silts). Soils are subject to severe-moderate woody seedling mortality and windthrow of large trees. During dry periods, the hardened clays stop the movement by capillary action of water from deeper, wetter subsoil to near the surface. This results in droughty soils in the summer and autumn. The hardened clays (along with saturated soil conditions at other times) also restrict the downward growth of plant roots and hinders activity by burrowing animals. Species dominance ranged from pure stands of Quercus alba to Quercus alba and Quercus velutina to Quercus alba and Carya ovata. The community appears to have existed more as an open woodland than a forest. The timber was often of poor stature with incomplete canopy cover. Additional canopy species probably included Carya ovalis, Nyssa sylvatica, Quercus stellata, and Quercus imbricaria. The understory was dominated by Cornus florida. Also common was Lindera benzoin, Corylus americana, Crataegus spp., and Malus coronaria (= Pyrus coronaria). The understory was frequently open, and apparently extensive barrens were present. The herbaceous layer was dominated by Andropogon gerardii and Sorghastrum nutans. Additional species included Asclepias hirtella, Euphorbia corollata, Helianthus giganteus, Helianthus mollis, Lespedeza capitata, Oenothera fruticosa, Penstemon digitalis, Solidago nemoralis, and Viola sagittata. Degraded remnants are often dominated by Pinus virginiana, with widely scattered Pinus rigida, Quercus alba, Quercus imbricaria, Quercus stellata, and Quercus velutina in a discontinuous canopy. Shrub species include Cornus florida, Hypericum prolificum, Spiraea tomentosa, and Rhus copallinum. Danthonia spicata is a dominant herb. Other herbaceous associates may also include Schizachyrium scoparium, Andropogon virginicus, Aristida oligantha, Aristida dichotoma, Pycnanthemum tenuifolium, Desmodium ciliare, Polygala sanguinea, Scutellaria integrifolia, Hypericum drummondii, and Euthamia graminifolia (= Solidago graminifolia).
Comm #12542	Crataegus aestivalis Forest » more details accession code: VB.CC.25088.CRATAEGUSAESTIV	Southeastern Ecology Working Gro...	0	This community occurs in sinkholes and other isolated upland depressions of the South Atlantic and East Gulf coastal plains of Georgia and Florida. It is strongly dominated by trees and large shrubs of Crataegus aestivalis. There are generally few or no herb species present.
Comm #12543	Abies lasiocarpa / Clematis columbiana var. columbiana Forest » more details accession code: VB.CC.26638.ABIESLASIOCARPA	Western Ecology Working Group of...	0
Comm #12544	Taxodium ascendens / Fraxinus caroliniana - Cephalanthus occidentalis - (Planera aquatica) Woodland » more details accession code: VB.CC.37513.CEGL004289	Schafale, M. P. 2011. Classifica...	0	This association occurs in distinctive, deeply flooded abandoned channel segments along sandy blackwater rivers. Vegetation is depauperate because of the extremely long flooding and acidic soils. The canopy is dominated by <i>Taxodium ascendens</i> and is often open. It may have a woodland structure rather than forest. The trees characteristically have very large buttresses and small trunks. A dense subcanopy or low canopy is present in at least part of the community. It is generally dominated by <i>Fraxinus caroliniana</i> or <i>Planera aquatica</i>, with <i>Cephalanthus occidentalis</i> abundant. <i>Ilex amelanchier</i> may also be present. There is little shrub layer. In times of low water, a dense herb layer of <i>Eleocharis baldwinii, Juncus repens</i>, and <i>Eragrostis hypnoides</i> is often present.
Comm #12545	CEGL003875 » more details accession code: VB.CC.5703.CEGL003875 NOT CURRENTLY ACCEPTED	EcoArt 2002	0
Comm #12546	Nuphar advena / Chara sp. Tropical Herbaceous Vegetation » more details accession code: VB.CC.34842.CEGL004315	Southeastern Ecology Working Gro...	0	Stands are found in shallow waters of tropical Florida and are dominated by <i>Nuphar advena (= Nuphar lutea ssp. advena)</i>. <i>Chara</i> spp. may also be present.
Comm #12547	Artemisia arbuscula ssp. longicaulis / Elymus elymoides Shrubland » more details accession code: VB.CC.20676.ARTEMISIAARBUSC	Western Ecology Working Group of...	0	This association is characterized by a shrub layer dominated by Artemisia arbuscula ssp. longicaulis and a grass layer in which the dominant perennial grass is clearly Elymus elymoides. This association has been observed on steep hillsides just above alluvial fans coming out of the Virginia Range on the east side of Reno, Nevada.
Comm #12548	Nymphaea odorata Tropical Herbaceous Vegetation » more details accession code: VB.CC.35724.CEGL004316	Southeastern Ecology Working Gro...	0	This vegetation type consists of <i>Nymphaea odorata</i> communities of tropical and subtropical Florida.
Comm #12549	Spartina spartinae - Monanthochloe littoralis - Suaeda linearis Herbaceous Vegetation » more details accession code: VB.CC.22848.SPARTINASPARTIN	Southeastern Ecology Working Gro...	0	This community occupies irregularly flooded, somewhat hypersaline situations, isolated from regular tidal inundation. Spartina spartinae strongly dominates. Other species present can include Monanthochloe littoralis, Suaeda linearis, Batis maritima, Distichlis spicata, Maytenus phyllanthoides, Borrichia frutescens, and Prosopis reptans. Spartina spartinae can be stunted and sparse in these communities. Some situations where this community occurs may actually not be tidal, but are hypersaline from storm flooding and evaporation.
Comm #12550	Schoenoplectus robustus Semipermanently Flooded Herbaceous Alliance » more details accession code: VB.CC.20169.SCHOENOPLECTUSR	Southeastern Ecology Working Gro...	0	This alliance is provided to accommodate inland salt flats, known only from Virginia, which are dominated by Juncus gerardii and Schoenoplectus robustus (= Scirpus robustus).