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Add/Drop	Name	Reference	Plots↓	Description
Comm #10141	Acer rubrum Seasonally Flooded Woodland Alliance » more details accession code: VB.CC.19431.ACERRUBRUMSEASO	Eastern Ecology Working Group of...	0
Comm #10142	CEGL004209 » more details accession code: VB.CC.5885.CEGL004209 NOT CURRENTLY ACCEPTED	EcoArt 2002	0
Comm #10143	Pinus echinata - Quercus (alba, stellata) - Carya alba / Cornus florida Forest » more details accession code: VB.CC.27742.PINUSECHINATAQU	Southeastern Ecology Working Gro...	0	This shortleaf - loblolly pine forest association occurs in the Upper East Gulf Coastal Plain, and apparently adjacent areas of the East Gulf Coastal Plain. The canopy is characterized by the presence of both Pinus echinata and Pinus taeda. A mixture of hardwood species are also present, such as Quercus alba, Quercus stellata, Carya alba, Carya glabra, Quercus falcata, and Quercus velutina. In addition to overstory species, the subcanopy includes Cornus florida, Oxydendrum arboreum, Nyssa sylvatica, and Liquidambar styraciflua. The patchy shrub layer includes Vaccinium elliottii, Asimina parviflora, Aesculus pavia, Hamamelis virginiana, and Arundinaria gigantea. This community has a sparse herbaceous layer including Piptochaetium avenaceum, Chasmanthium sessiliflorum, Elephantopus tomentosus, Hexastylis arifolia, Iris verna, Rudbeckia fulgida, Solidago juncea, Euphorbia pubentissima, and Mitchella repens.
Comm #10144	Acer rubrum var. trilobum - Liriodendron tulipifera / Ilex opaca var. opaca / Osmunda cinnamomea Forest » more details accession code: VB.CC.23362.ACERRUBRUMVARTR	Southeastern Ecology Working Gro...	0	This streamside seepage vegetation is found in the southeastern Piedmont of North Carolina. It occurs along small, low-gradient streams. Sites are intermittently flooded, and nearly permanently saturated by water from the streambed as well as from upland runoff. Soils often have some silt content and usually have a clay layer at approximately one foot that inhibits infiltration. Characteristic canopy species include the nominals as well as Liquidambar styraciflua, Nyssa sylvatica, Magnolia virginiana, Diospyros virginiana, and Quercus alba. The understory contains Ilex opaca var. opaca, Ilex verticillata, Euonymus americana, Itea virginica, Viburnum nudum var. nudum, Alnus serrulata, Amelanchier arborea, Cyrilla racemiflora, and Photinia pyrifolia (= Aronia arbutifolia). The herbaceous layer is dominated by Osmunda cinnamomea, Osmunda regalis var. spectabilis, Scutellaria integrifolia, Athyrium filix-femina ssp. asplenioides, Smilax laurifolia, and Vitis rotundifolia, with many other species often present.
Comm #10145	Abies lasiocarpa - (Pinus contorta) / Lupinus arcticus ssp. subalpinus Woodland » more details accession code: VB.CC.34202.CEGL000316	Western Ecology Working Group of...	0	This association occurs only in the northeastern Olympic Mountains of Washington. Sites occupied are dry, upper slopes and ridgetops on southwestern aspects between 1500 and 1850 m elevation in the driest rainshadow of the Olympic Mountains. This is a needle-leaved evergreen conifer woodland of relatively short stature. <i>Abies lasiocarpa</i> is always present and usually codominant or dominant (mean cover 22%). <i>Pinus contorta</i> is often dominant or codominant but can be completely absent (mean cover 42%). <i>Pseudotsuga menziesii</i> occurs about half the time and averages 20% cover when present. The understory is dominated by the forb <i>Lupinus arcticus ssp. subalpinus</i> (mean cover 15%), and occasionally codominated by <i>Arnica cordifolia</i> or the dwarf-shrub <i>Juniperus communis</i>. Other frequent understory species that occur in low abundance are <i>Paxistima myrsinites, Lomatium martindalei, Orthilia secunda, Hieracium albiflorum</i>, and <i>Valeriana sitchensis</i>. This association is distinguished from similar associations by >3% cover of <i>Lupinus arcticus ssp. subalpinus</i> and presence of <i>Abies lasiocarpa</i>, along with little to no <i>Abies amabilis, Tsuga heterophylla, Tsuga mertensiana, Rhododendron albiflorum</i> (<10%), <i>Vaccinium membranaceum</i> (<5%), <i>Valeriana sitchensis</i>, or <i>Luzula glabrata var. hitchcockii</i> (<3%).
Comm #10146	Populus tremuloides / Carex rossii Forest » more details accession code: VB.CC.32733.CEGL000580	Western Ecology Working Group of...	0
Comm #10147	Abies lasiocarpa - Picea engelmannii / Galium triflorum Forest » more details accession code: VB.CC.32213.CEGL000311	Western Ecology Working Group of...	0	This forest association occurs in the upper montane and subalpine zone in the central and northern Rocky Mountains. Elevations range from 1060-2075 m (3477-6800 feet), but extend up to 2440 m in the southern and eastern part of its range. Sites are relatively warm with moist soil. Stands are typically found on northern slopes, valley bottoms and benches. In drier mountain ranges, stands are restricted to riparian zones. Upland aspects are typically northerly except where soil moisture is supplemented by seeps. Lowland aspects are variable. Substrates are typically finer textured soils such as silt loams or silts, but include loams and sandy loam. Soils are derived from a variety of parent materials. Litter dominates ground cover often 6 cm deep with low cover of rock and bare ground. Vegetation is characterized by <i>Abies lasiocarpa</i> and <i>Picea engelmannii</i> codominating the tree canopy with an understory that includes the presence of indicator species <i>Galium triflorum, Actaea rubra</i>, and <i>Streptopus amplexifolius</i>. The evergreen needle-leaved tree canopy is moderately dense to dense (over 55% cover) and is typically dominated by <i>Picea engelmannii</i> and mature seral tree species, with <i>Abies lasiocarpa</i> dominating the subcanopy and regeneration layers. Important seral species in the tree canopy are <i>Pseudotsuga menziesii, Larix occidentalis</i>, and <i>Pinus contorta</i>, however, their cover seldom exceeds 10-15%. Undergrowth is variable with shrub layers present or not, however, the characteristic herbaceous layer is typically lush and must have some of the above moist-site indicator species present in the stand. Other important understory moist-site indicator species are <i>Angelica arguta, Cornus sericea (= Cornus stolonifera), Moneses uniflora (= Pyrola uniflora), Saxifraga odontoloma (= Saxifraga arguta)</i>, and <i>Senecio triangularis</i>. Other species with high constancy include <i>Amelanchier alnifolia, Arnica</i> spp., <i>Calamagrostis rubescens, Carex geyeri, Linnaea borealis, Mahonia repens, Osmorhiza berteroi (= Osmorhiza chilensis), Orthilia secunda (= Pyrola secunda), Ribes lacustre, Rubus parviflorus, Spiraea betulifolia, Symphoricarpos albus, Thalictrum occidentale, Vaccinium membranaceum</i>, and <i>Vaccinium scoparium</i>.
Comm #10148	Abies lasiocarpa / Lathyrus lanszwertii var. leucanthus Forest » more details accession code: VB.CC.34262.CEGL000313	Western Ecology Working Group of...	0	This community is found in northern Arizona, central New Mexico and possibly Utah between 2950 and 3110 m (9700-10,200 feet) elevation on moderately steep west- and south-facing slopes. Soils are derived from volcanics. Climate is relatively cool and dry. <i>Abies lasiocarpa</i> and <i>Picea engelmannii</i> are the major climax species. <i>Pseudotsuga menziesii, Pinus strobiformis</i>, and <i>Populus tremuloides</i> are the major seral species. <i>Acer glabrum, Salix scouleriana</i>, and <i>Symphoricarpos oreophilus</i> are the principal shrub components. The forb layer is fairly herbaceous, with <i>Lathyrus lanszwertii var. leucanthus (= Lathyrus arizonicus)</i> and <i>Vicia americana</i> dominating.
Comm #10149	Abies lasiocarpa - Picea engelmannii / Linnaea borealis Forest » more details accession code: VB.CC.32212.CEGL000315	Western Ecology Working Group of...	0	This widespread forest association occurs in the subalpine zone in the central and northern Rocky Mountains. Elevations are 1145-2135 m (3750-7000 feet) throughout most of the range. Sites are relatively cool and moist, occurring on all aspects, but are typically found on northern slopes (especially mid to lowslopes), valley bottoms and benches. Soils are typically medium- to fine-textured and are derived from a variety of parent materials. Litter dominates ground surface often 3 cm deep with low cover of bare soil and rock (except boulders). The vegetation is characterized by <i>Abies lasiocarpa</i> and <i>Picea engelmannii</i> codominating the tree canopy with <i>Linnaea borealis</i> present to dominant in the dwarf-shrub layer and <i>Vaccinium scoparium</i> and <i>Xerophyllum tenax</i> with less than 5% cover. The evergreen needle-leaved tree canopy is moderately dense to dense (over 55% cover) and is typically dominated by <i>Picea engelmannii</i> and mature seral tree species, with <i>Abies lasiocarpa</i> dominating the subcanopy and regeneration layers. Important seral species in the tree canopy are <i>Pseudotsuga menziesii, Larix occidentalis</i>, and <i>Pinus contorta</i>. Undergrowth is variable; however, an open to dense dwarf-shrub layer is present and usually dominated or codominated by <i>Linnaea borealis</i>. Consistent shrubs and dwarf-shrubs include <i>Amelanchier alnifolia, Mahonia repens, Ribes lacustre, Rosa</i> spp., <i>Rubus parviflorus, Shepherdia canadensis, Spiraea betulifolia, Vaccinium membranaceum</i> and <i>Vaccinium scoparium</i>. The sparse to moderate herbaceous layer is a mixture of graminoids and forbs such as <i>Actaea rubra, Arnica</i> spp., <i>Calamagrostis rubescens, Carex geyeri, Carex rossii, Galium</i> spp., <i>Maianthemum stellatum, Osmorhiza berteroi (= Osmorhiza chilensis), Orthilia secunda (= Pyrola secunda)</i>, and <i>Thalictrum occidentale</i>.
Comm #10150	A.2017 » more details accession code: VB.CC.1717.A2017 NOT CURRENTLY ACCEPTED	EcoArt 2002	0	This alliance consists of drawdown zones around artificial impoundments in the Southern Appalachians and likely adjacent provinces. Physiognomy and composition are highly variable. A scattering to sometimes well-developed stratum of woody trees and saplings is sometime present, and often includes species such as ~Diospyros virginiana, Betula nigra$, and ~Platanus occidentalis$. Characteristic herbs are weedy colonizers, such as ~Eupatorium serotinum, Diodia virginiana, Juncus effusus, Ambrosia artemisiifolia, Juncus tenuis, Scirpus cyperinus, Lobelia inflata, Lobelia cardinalis, Apocynum cannabinum, Polygonum hydropiperoides, Acalypha virginica, Andropogon virginicus, Panicum$ spp., ~Hypericum mutilum, Hypericum punctatum, Plantago$ spp., ~Pseudognaphalium$ spp., and others.