Login | Datasets | Logout
Jump to... Home PLOT search PLANT search COMMUNITY search Simple search Manage datasets Tutorial About FAQ ------- Site map VegBranch Data dictionary ERD

301010

View Community Concepts - Summary

add all query results to datacart,   add plots on page to datacart,   drop plots on page from datacart

Add/Drop	Name	Reference	Plots↓	Description
Comm #291	Canotia holocantha Shrubland Alliance » more details accession code: VB.cc.29952.CANOTIAHOLOCANT	NVC 2004	60
Comm #292	Artemisia tridentata ssp. spiciformis Shrubland Alliance » more details accession code: VB.cc.30619.ARTEMISIATRIDEN	NVC 2004	60
Comm #293	Alnus incana Shrub Swamp » more details accession code: urn:lsid:vegbank.org:commConcept:31289-{26EE9F96-4ABF-4A7E-8B4A-E3AE1C552B66}	NatureServe Biotics 2019	60	This alder swamp community is widespread in the midwestern and northeastern United States and southern Canada. Stands occur on shores, edges of beaver meadows in stream floodplains, swales associated with small streams in peatlands, or upland forests. Soils are well-decomposed peat, muck or mineral soils. The hydrology is typically seasonally flooded, with most sites remaining saturated. The vegetation is dominated by tall shrubs, 2-8 m in height, with a moderately open to dense shrub canopy. There is an understory of shorter shrubs and herbaceous species. The density of the understory varies inversely with the tall-shrub canopy. The overstory is usually overwhelmingly dominated by <i>Alnus incana</i>, but in the more southeastern portions of this type's range, <i>Alnus serrulata</i> can occur with <i>Alnus incana</i>. Where alder is not as dominant, other shrubs, such as <i>Cornus sericea, Ilex verticillata, Rubus idaeus, Salix</i> spp., <i>Spiraea alba, Spiraea tomentosa</i>, and <i>Viburnum</i> spp., can be found. At the southern range limit of this type in West Virginia, shrub layers may by be dominated or codominated by the Central Appalachian endemic <i>Ilex collina</i>. The herbaceous layer contains species such as <i>Symphyotrichum lanceolatum var. lanceolatum, Symphyotrichum puniceum, Calamagrostis canadensis, Caltha palustris, Carex lacustris, Carex prairea, Carex trisperma, Doellingeria umbellata, Eutrochium maculatum, Glyceria melicaria, Glyceria striata, Impatiens capensis, Lycopus uniflorus, Onoclea sensibilis, Osmunda cinnamomea, Rubus pubescens, Scirpus atrovirens, Symplocarpus foetidus, Thelypteris palustris, Typha</i> spp., and <i>Viola</i> spp. Mosses include <i>Climacium dendroides</i> and <i>Sphagnum</i> spp. Where the tall-shrub canopy is open, graminoids can become dense. Scattered trees are found in many stands, including <i>Acer rubrum, Fraxinus nigra</i>, and <i>Thuja occidentalis</i>.
Comm #294	Nyssa biflora - (Taxodium distichum, Nyssa aquatica) / Morella cerifera - Rosa palustris Tidal Forest » more details accession code: urn:lsid:vegbank.org:commConcept:33270-{499042C3-3AE4-425E-9B3E-E4161485EAE1}	NatureServe Biotics 2019	60	This broadly defined association accommodates tidally flooded forests in lower, estuarine reaches of brownwater and blackwater rivers in the Outer Coastal Plain (tidewater), and also along estuarine shores. It may require subdivision as more information becomes available. Flooding of these environments can be either lunar-tidal or wind-tidal, and can be affected as well by riverine flooding events. The trees often have a stressed appearance, and the herbaceous layer usually is well-developed and more species-rich than in most non-tidal swamps, possibly as a result of the tidal nutrient input. Various combinations of <i>Nyssa biflora, Taxodium distichum</i>, and <i>Nyssa aquatica</i> usually dominate the canopy. In addition, <i>Liquidambar styraciflua</i> may be present. On blackwater rivers, <i>Nyssa aquatica</i> is often an indicator of tidal conditions, presumably because it requires the higher nutrients provided by tidal flooding. Other species common in tidal situations, such as <i>Morella cerifera, Lilaeopsis carolinensis, Peltandra virginica, Thelypteris palustris var. pubescens, Osmunda regalis var. spectabilis</i>, and <i>Rosa palustris</i>, are often common. Typical species of non-tidal swamps, such as <i>Quercus lyrata, Carya aquatica, Quercus phellos, Smilax laurifolia, Ilex glabra, Lyonia lucida, Woodwardia virginica, Sphagnum</i> spp., <i>Chamaecyparis thyoides, Cyrilla racemiflora</i>, and others, are absent.
Comm #295	Aronia arbutifolia - Ilex verticillata - Ilex mucronata / Osmunda cinnamomea Acidic Peatland » more details accession code: urn:lsid:vegbank.org:commConcept:35173-{65165801-9293-4BEA-A9B7-BF15EC6825F0}	NatureServe Biotics 2019	60	This successional shrubland occurs on saturated, temporarily flooded, or semipermanently flooded acidic peatlands in the Allegheny Mountains region of West Virginia and Maryland, at elevations between 770 and 1210 m. It is a small-patch type that occupies flat to gently sloping land (0-2°) in headwater basins. Where conditions are favorable, individual stands may be as large as 12 ha. It is part of the natural disturbance mosaic of beaver-influenced vegetation types at high elevations in the Alleghenies, and also occurs on formerly forested peatlands that were logged or burned within the last 120 years. It is probably more widespread now than in the past, when forests covered much of its current habitat. Where natural succession is unhindered, some stands will likely recover to forested peatlands of high conservation value, although the recovery rate is slow (perhaps a century) in these frost-pocket habitats. Hummock-and-hollow microtopography is well-developed, with rounded peat-covered hummocks formed over woody stem clusters, decayed wood, and roots. Bedrock may be sandstone or, less commonly, limestone. Soil texture is moderately to very poorly drained peat, with a depth greater than one meter, although in earlier successional stands the peat may be only a few centimeters thick. Mean soil pH is 3.8. The unvegetated surface is predominantly litter, with an average of 5% standing water. This community may occur with either tall-shrub or short-shrub physiognomy, depending on the age of the stand. The shrub species favor hummock tops and typically include <i>Aronia melanocarpa, Aronia arbutifolia, Viburnum nudum var. cassinoides, Vaccinium myrtilloides, Rhododendron maximum, Hypericum densiflorum, Ilex verticillata, Ilex mucronata</i>, and <i>Kalmia latifolia</i>. Less frequent, but sometimes locally abundant, shrub species are <i>Vaccinium corymbosum, Alnus incana ssp. rugosa, Vaccinium angustifolium</i>, and <i>Gaylussacia baccata</i>. Dwarf-shrub species with high constancy include <i>Rubus hispidus, Vaccinium oxycoccos</i>, and <i>Vaccinium macrocarpon</i>. The herbaceous layer typically occupies hollows and the sides of hummocks. Species with high cover and constancy are <i>Eriophorum virginicum, Solidago uliginosa, Carex folliculata</i>, and <i>Osmunda cinnamomea var. cinnamomea</i>. Species with lower constancy that are sometimes abundant include <i>Symplocarpus foetidus, Drosera rotundifolia var. rotundifolia, Gentiana linearis, Rhynchospora alba, Carex stipata, Juncus effusus, Lycopodium obscurum, Carex trisperma var. trisperma, Pteridium aquilinum, Gaultheria procumbens, Carex canescens, Carex gynandra</i>, and <i>Juncus brevicaudatus</i>. Nonvascular plants are abundant, dominated by <i>Sphagnum</i> spp. and often including high cover by <i>Polytrichum</i> spp. Mean species richness of all vascular plants and any nonvascular plants with cover &gt;1% is 21 taxa per 400 m2.
Comm #296	PSEUDOTSUGA MENZIESII FOREST ALLIANCE » more details accession code: VB.CC.14141.PSEUDOTSUGAMENZ	Jennings 2003. Vegetation alliances: composition and function.	59
Comm #297	Quaking Aspen Forest Alliance » more details accession code: VB.cc.30231.QUAKINGASPENFOR	NVC 2004	59
Comm #298	Pinus palustris / Clethra alnifolia - Gaylussacia frondosa - Quercus pumila / Schizachyrium scoparium Woodland » more details accession code: urn:lsid:vegbank.org:commConcept:33282-{8C63DF3F-8D6C-45D7-883D-75B2E0AF6320}	NatureServe Biotics 2019	59	This longleaf pine woodland association is restricted to the Coastal Plain of South Carolina. The open canopy of this association is dominated by <i>Pinus palustris</i>. The woody understory may contain <i>Clethra alnifolia, Gaylussacia frondosa</i>, and <i>Quercus pumila</i>. The perennial grass <i>Schizachyrium scoparium</i> is a typically dominant herb. This is the "mesic portion of the runner oak woodlands of the wiregrass gap" (R. Peet pers. comm. 2009). More information to be added from North Carolina Vegetation Survey data.
Comm #299	Platanus occidentalis - Betula nigra - Salix (caroliniana, nigra) Floodplain Forest » more details accession code: urn:lsid:vegbank.org:commConcept:32754-{74B404FF-6BBB-439F-9949-A8584062E3E7}	NatureServe Biotics 2019	59	This early-successional woodland community of coarse-textured (cobbly / bouldery) to fine-textured (silty or muddy) depositional bars and islands occurs along rivers and large streams in the High Allegheny Plateau, Central Appalachians, and Lower New England ecoregions. It is subject to relatively frequent and powerful flooding and ice-scouring and has a highly variable physiognomy. It is dominated by stunted, usually battered and flood-trained trees (varying from &lt;5 to &gt;10 m tall) of <i>Platanus occidentalis</i> and <i>Betula nigra</i>. <i>Salix caroliniana</i> and <i>Salix nigra</i> are dominant or codominant in a minority of stands. Other floodplain trees, particularly <i>Acer saccharinum </i>and <i>Fraxinus pennsylvanica</i>, may occur as minor associates. Shrub associates include <i>Cornus amomum, Salix sericea, Alnus serrulata</i>, and sometimes <i>Cephalanthus occidentalis</i> or <i>Physocarpus opulifolius</i>. The herbaceous layer ranges from sparse to moderately dense. Characteristic herbs include <i>Apocynum cannabinum, Polygonum virginianum, Polygonum hydropiper, Polygonum pensylvanicum, Polygonum hydropiperoides, Polygonum sagittatum, Polygonum pensylvanicum, Eupatorium serotinum, Asclepias incarnata, Pilea pumila, Hypericum</i> spp., <i>Bidens</i> spp., <i>Phalaris arundinacea, Dichanthelium clandestinum, Leersia virginica, Panicum virgatum</i>, and <i>Justicia americana</i>. Vines such as <i>Vitis riparia</i> and <i>Toxicodendron radicans</i> are often found throughout this association. Exotics such as <i>Lythrum salicaria, Microstegium vimineum, Polygonum cuspidatum, Securigera varia</i>, and <i>Rosa multiflora</i> are frequent invaders.
Comm #300	Liriodendron tulipifera - Pinus strobus - Tsuga canadensis - Quercus rubra / Polystichum acrostichoides Forest » more details accession code: urn:lsid:vegbank.org:commConcept:34951-{3959A95A-1A18-4595-97D9-A0DCA28C32AE}	NatureServe Biotics 2019	59	This mixed hardwood - white pine - hemlock cove forest is widely but locally distributed in the southern part of the Central Appalachians in Virginia, West Virginia, and Maryland. It occurs on the lower slopes and bottoms of ravines and coves at lower elevations, generally below 915 m (3000 feet). Sites may be underlain by bedrock or colluvial and alluvial deposits of various sedimentary and metasedimentary rocks, granitic rocks, or metabasalt. Habitats are generally mesic with acidic soils of moderate or intermediate fertility. The overstory is codominated by variable mixtures of <i>Liriodendron tulipifera, Pinus strobus, Tsuga canadensis, Quercus rubra</i>, and <i>Quercus alba</i>. This forest generally has a moderate to strong evergreen component, but <i>Pinus strobus</i> varies from widely scattered to codominant, and <i>Tsuga canadensis</i> has been greatly reduced by recent outbreaks of the hemlock woolly adelgid and may be restricted to the understory. Less frequent overstory associates include <i>Acer rubrum, Betula lenta, Carya</i> spp., <i>Fagus grandifolia, Fraxinus americana, Nyssa sylvatica</i>, and <i>Quercus montana</i>. Characteristic understory species include <i>Acer pensylvanicum, Amelanchier arborea, Cercis canadensis, Cornus florida, Ostrya virginiana, Oxydendrum arboreum, Viburnum acerifolium, Rubus</i> spp., <i>Corylus americana, Hamamelis virginiana, Hydrangea arborescens</i>, and <i>Lindera benzoin</i>. The herb layer is usually patchy to moderately dense. Frequent patch-dominants include <i>Amphicarpaea bracteata, Dennstaedtia punctilobula, Eurybia divaricata</i>, and <i>Polystichum acrostichoides</i>. Other constant but low-cover herbs include <i>Botrychium virginianum, Desmodium nudiflorum, Dioscorea quaternata, Galium triflorum, Maianthemum racemosum ssp. racemosum, Mitchella repens</i>, and <i>Stellaria pubera</i>. Many additional herbs occur at low constancy.