| Add/Drop |
Name
|
Reference
|
Plots↓
|
Description |
Comm #91
|
Pinus (pungens, rigida) - Quercus montana / (Quercus ilicifolia) / Gaylussacia baccata Woodland
» more details
accession code: urn:lsid:vegbank.org:commConcept:33764-{AC7821FD-6FCB-40C9-95E5-56EA92F2A02B}
|
NatureServe Biotics 2019 |
169
|
This association represents mixed woodlands occupying xeric, convex, often rocky south- and west-facing slopes, ridge spurs, crests, and clifftops in the Central Appalachians and peripherally in the Piedmont and Southern Blue Ridge. Stands occur at elevations from 275 to 1200 m (900-4000 feet) on various substrates but most commonly on acidic, sedimentary and metasedimentary substrates (e.g., quartzites, sandstones, and shales). Soils are very infertile, shallow, and droughty. A thick, poorly decomposed duff layer, along with dead wood and highly volatile ericaceous shrubs, create a strongly fire-prone habitat. <i>Pinus pungens</i> and <i>Pinus rigida</i>, individually or together, codominate the canopy with <i>Quercus montana</i>. The physiognomy of this community can approach that of a closed-canopy forest in some situations as a result of fire exclusion. Scattered canopy and subcanopy associates may include <i>Quercus coccinea, Quercus rubra, Quercus marilandica, Pinus virginiana, Castanea dentata, Acer rubrum, Sassafras albidum, Nyssa sylvatica</i>, and <i>Amelanchier arborea</i>. <i>Quercus ilicifolia</i> often dominates a moderately open to very dense tall-shrub layer, while variable combinations of <i>Kalmia latifolia, Gaylussacia baccata, Vaccinium pallidum, Vaccinium angustifolium, Vaccinium stamineum, Pieris floribunda, Rhododendron catawbiense</i>, and other ericads form a generally dense low-shrub layer. <i>Smilax rotundifolia</i> and <i>Smilax glauca</i> may be prominent climbers among the shrubs. Herbaceous species, often very sparse, are rooted in small openings among the shrubs, on rocks, and in disturbed areas where mineral soil is exposed. Typical herbs and subshrubs include <i>Epigaea repens, Gaultheria procumbens, Xerophyllum asphodeloides, Iris verna, Pteridium aquilinum var. latiusculum, Melampyrum lineare var. latifolium, Stenanthium gramineum var. micranthum, Uvularia puberula, Lycopodium tristachyum, Aralia hispida</i> (usually on outcrops), and <i>Carex tonsa</i>. Periodic fire is an important ecological process that provides opportunities for the regeneration of both canopy pines and less competitive herbaceous species, while setting back successional encroachment of xeric oaks. On many sites (e.g., clifftops, quartzite ledges), the vegetation is self-perpetuating due to extreme edaphic conditions. |
Comm #92
|
TSUGA MERTENSIANA - ABIES AMABILIS ALLIANCE
» more details
accession code: VB.CC.12785.TSUGAMERTENSIAN
|
Jennings 2003. Vegetation alliances: composition and function. |
159
|
|
Comm #93
|
Larrea tridentata Wooded Shrubland Alliance
» more details
accession code: VB.cc.30098.LARREATRIDENTAT
|
NVC 2004 |
158
|
|
Comm #94
|
Artemisia tridentata ssp. vaseyana Shrub Herbaceous Alliance
» more details
accession code: VB.cc.30620.ARTEMISIATRIDEN
|
NVC 2004 |
155
|
|
Comm #95
|
Ephedra nevadensis Shrubland Alliance
» more details
accession code: VB.cc.30674.EPHEDRANEVADENS
|
NVC 2004 |
153
|
|
Comm #96
|
Artemisia filifolia Shrubland Alliance
» more details
accession code: VB.cc.30615.ARTEMISIAFILIFO
|
NVC 2004 |
150
|
|
Comm #97
|
Quercus rubra / (Vaccinium simulatum, Rhododendron calendulaceum) / (Dennstaedtia punctilobula, Thelypteris noveboracensis) Forest
» more details
accession code: urn:lsid:vegbank.org:commConcept:35550-{0645FF6E-7675-4940-84BF-849BCCAF9DF1}
|
NatureServe Biotics 2019 |
150
|
This community includes forest vegetation with <i>Quercus rubra</i> making up at least 75% of the tree canopy and with greater than 20% shrub cover, which may be continuous to patchy. More than 50% of the total shrub cover is deciduous, although evergreen shrubs may be present. Typical shrub dominants include <i>Rhododendron calendulaceum, Vaccinium simulatum, Vaccinium erythrocarpum, Ilex montana, Gaylussacia ursina, Rubus canadensis, Corylus cornuta</i>, and <i>Lyonia ligustrina</i>. The herbaceous stratum is diverse and is predominantly a mix of sedges, ferns, and tall herbs, including <i>Ageratina altissima var. roanensis, Athyrium filix-femina ssp. asplenioides, Clintonia umbellulata, Collinsonia canadensis, Conopholis americana, Dennstaedtia punctilobula, Dioscorea villosa, Eurybia divaricata, Laportea canadensis, Lysimachia quadrifolia, Medeola virginiana, Monarda fistulosa, Oclemena acuminata, Potentilla canadensis, Prenanthes roanensis, Silene stellata, Solidago curtisii, </i>and <i>Thelypteris noveboracensis</i>. Herbaceous dominance varies within and between occurrences. This community occurs on most of the major mountain ranges of the Southern Appalachians at elevations of 1070-1525 m (3500-5000 feet) on broad ridges and mid to upper slope positions, commonly with southeastern and southern exposures. At higher elevations this forest often occurs adjacent to or grades into forests dominated by <i>Picea rubens, Abies fraseri</i>, or northern hardwood species such as <i>Aesculus flava, Betula alleghaniensis, </i>and <i>Fagus grandifolia</i>. In some areas, this community is found adjacent to montane shrublands and grasslands. At low elevations, on dry sites, this community may grade into forests dominated by a mixture of <i>Quercus</i> species. |
Comm #98
|
PINUS PONDEROSA ALLIANCE
» more details
accession code: VB.CC.8309.PINUSPONDEROSAA
|
Jennings 2003. Vegetation alliances: composition and function. |
148
|
|
Comm #99
|
Juniperus osteosperma or utahensis Wooded Herbaceous Alliance
» more details
accession code: VB.cc.30097.JUNIPERUSOSTEOS
|
NVC 2004 |
145
|
|
Comm #100
|
PSEUDOTSUGA MENZIESII WOODLAND ALLIANCE
» more details
accession code: VB.CC.10975.PSEUDOTSUGAMENZ
|
Jennings 2003. Vegetation alliances: composition and function. |
144
|
|
add all query results to datacart,
add plots on page to datacart,
drop plots on page from datacart