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Add/Drop	Name	Reference	Plots↓	Description
Comm #10511	Liquidambar styraciflua - (Acer rubrum) Seasonally Flooded Forest Alliance » more details accession code: VB.CC.20953.LIQUIDAMBARSTYR	Southeastern Ecology Working Gro...	0	Forests dominated by Liquidambar styraciflua with seasonally flooded hydrology. Some stands may be dominated or codominated by Acer rubrum. Other woody species that may be present include Planera aquatica, Salix nigra, Quercus palustris, Quercus lyrata, Fraxinus pennsylvanica, Quercus phellos, and Cornus foemina. Shrubs that may be present include Ilex opaca, Magnolia virginiana, Cephalanthus occidentalis, Clethra alnifolia, Leucothoe racemosa, and Vaccinium corymbosum. Sphagnum spp. are common in the herbaceous layer. Known examples occur in seasonally flooded depressions and not on floodplains.
Comm #10512	Quercus virginiana - Carya illinoinensis Woodland Alliance » more details accession code: VB.CC.25315.QUERCUSVIRGINIA	Southeastern Ecology Working Gro...	0	This woodland occurs within a matrix of coastal grassland. It is characterized by an open, patchy canopy with grass-dominated openings. The overstory is dominated by Quercus virginiana and Carya illinoinensis with lesser amounts of Celtis laevigata var. laevigata, Quercus stellata, and Ulmus alata. The understory typically includes Ilex vomitoria, Crataegus spp., Diospyros virginiana, and Sideroxylon sp. Common herbaceous species include Paspalum plicatulum, Axonopus spp., and Schizachyrium scoparium. This alliance typically occurs over heavy-textured, neutral or basic soils on elevated areas within the coastal prairie. It is found in floodplains, but is rarely flooded.
Comm #10513	Tsuga canadensis - Betula alleghaniensis / Veratrum viride - Carex scabrata - Oclemena acuminata Forest » more details accession code: VB.CC.22570.TSUGACANADENSIS	Fleming, G. P., and P. P. Coulli...	0	This community is currently known from scattered sites in the northern Blue Ridge and Ridge and Valley provinces of Virginia. Similar communities have been observed in the high Allegheny Mountains of Virginia and West Virginia, the Maryland Blue Ridge, and the Ridge and Valley of east-central West Virginia. Occurrences in Pennsylvania also seem likely. The type appears to be limited to high-elevation montane wetlands in a portion of the central Appalachians where Rhododendron maximum is infrequent to absent. Sites are usually located in high-elevation valleys or slope concavities, in diffuse stream headwaters and lateral, groundwater-saturated flats along larger streams. Occasionally, stands occupy gentle depressions or basins influenced by seasonally perched groundwater but without flowing streams. Elevation ranges from 700-1170 m (2300-3840 feet), though most occurrences are above 900 m (3000 feet). Habitats are flat to moderately sloping and typically have >20% surface cover of boulders and stones weathered from metabasalt, granitic rocks, or sandstone. Stream-bottom habitats have pronounced hummock-and-hollow microtopography, with moss-covered mounds and intertwining roots of Betula alleghaniensis, mucky pools, and braided drainage channels. Canopy dominance is shared by Tsuga canadensis and Betula alleghaniensis in variable proportions. Minor canopy associates include Acer rubrum, Fraxinus americana, Pinus strobus, Quercus alba, and Quercus rubra. Small-tree and shrub layers are open to sparse, with Acer pensylvanicum, Hamamelis virginiana, Ilex verticillata, and Kalmia latifolia the most frequent species. Alnus incana ssp. rugosa is a dominant shrub in one sampled plot. Rhododendron catawbiense is scattered in some stands of this community in the southern part of the northern Blue Ridge but does not form dense stands. The herb layer is well-developed and usually lush with forbs.
Comm #10514	Larrea tridentata / Pleuraphis mutica Shrub Herbaceous Vegetation » more details accession code: VB.CC.22864.LARREATRIDENTAT	Western Ecology Working Group of...	0
Comm #10515	VII.C.5.C » more details accession code: VB.CC.344.VIIC5C	EcoArt 2002	0
Comm #10516	Pinus muricata Forest [Placeholder] » more details accession code: VB.CC.21742.PINUSMURICATAFO	Western Ecology Working Group of...	0
Comm #10517	Juncus effusus var. brunneus Pacific Coast Herbaceous Vegetation » more details accession code: VB.CC.18016.JUNCUSEFFUSUSVA	Western Ecology Working Group of...	0
Comm #10518	CEGL004113 » more details accession code: VB.CC.5832.CEGL004113 NOT CURRENTLY ACCEPTED	EcoArt 2002	0
Comm #10519	CEGL002595 » more details accession code: VB.CC.5004.CEGL002595 NOT CURRENTLY ACCEPTED	EcoArt 2002	0
Comm #10520	Viguiera stenoloba - Bernardia obovata / Chamaesyce sp. Shrubland » more details accession code: VB.CC.35020.CEGL004603	Southeastern Ecology Working Gro...	0	On igneous rock.