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1371010

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Add/Drop	Name	Reference	Plots↓	Description
Comm #1361	Salix planifolia Temporarily Flooded Shrubland Alliance » more details accession code: VB.cc.30847.SALIXPLANIFOLIA	NVC 2004	12
Comm #1362	Picea engelmannii Woodland Alliance » more details accession code: VB.cc.30523.PICEAENGELMANNI	NVC 2004	12
Comm #1363	Hazardia squarrosa / Nassella pulchra - Hemizonia fasciculata Shrubland » more details accession code: VB.CC.37433.CEGL003689		12	This shrubland association occurs on gentle to somewhat steep northeast-facing slopes at low elevations between 6 and 486 m. It is characterized by the dominance of <i>Hazardia squarrosa</i> in the shrub layer and <i>Nassella pulchra</i> and <i>Hemizonia fasciculata</i> in the herbaceous layer.
Comm #1364	CHENOPODIUM HERBACEOUS ALLIANCE » more details accession code: VB.cc.30392.CHENOPODIUMHERB	NVC 2004	12
Comm #1365	RUBBLELAND SPARSELY VEGETATED ALLIANCE » more details accession code: VB.cc.30530.RUBBLELANDSPARS	NVC 2004	12
Comm #1366	Eucalyptus spp. Semi-natural Forest Alliance » more details accession code: VB.CC.28413.EUCALYPTUSSPPSE	Western Ecology Working Group of...	12
Comm #1367	EPHEDRA NEVADENSIS SHRUB HERBACEOUS ALLIANCE » more details accession code: VB.cc.30030.EPHEDRANEVADENS	NVC 2004	12
Comm #1368	SAND SAGE SHRUBLAND ALLIANCE » more details accession code: VB.cc.30560.SANDSAGESHRUBLA	NVC 2004	12
Comm #1369	Abies balsamea - Picea rubens / Ilex verticillata / Sphagnum spp. Forest » more details accession code: VB.CC.37506.CEGL006591		12	This acidic conifer woodland swamp occurs on temporarily to semipermanently flooded soils in frost-pocket headwater basins in the Allegheny Mountains region of West Virginia, at elevations between 980 and 1120 m. It is a small-patch community fed by seepage, occasional overflow from low-gradient headwater streams, and rainfall. It occupies flat to very gently sloping land (0- to 3-degree slopes) along small headwater streams, often in mixed wetland mosaics. Microtopography is characterized by interfingering of wetter and drier areas, with irregular hummocks formed over tree roots, tip-up mounds, nurse logs, and decaying wood. The community is influenced by beaver activity, and there is evidence of migration of the balsam fir populations, possibly in response to fluctuating hydrology. Soils are poorly to very poorly drained clayey or mucky soils with mottling in the upper 20 cm and occasional gleyed horizons. The canopy is open and dominated by stunted, inundation-stressed <i>Abies balsamea</i> and <i>Picea rubens</i>, with occasional presence of <i>Betula alleghaniensis var. alleghaniensis</i> and <i>Acer rubrum</i>. The subcanopy is dominated by <i>Abies balsamea</i> and <i>Tsuga canadensis</i> with smaller amounts of <i>Picea rubens</i> and <i>Acer rubrum</i>. <i>Amelanchier</i> spp. may be present with very low cover in the subcanopy. The shrub layer is dominated by <i>Ilex verticillata</i>, the regenerating canopy species, and <i>Alnus incana ssp. rugosa</i>. Low cover of <i>Rhododendron maximum, Hypericum densiflorum</i>, and <i>Vaccinium myrtilloides</i> may be present. The herbaceous ground layer is dense and fairly diverse, typically including 30-40 species. The most abundant species are <i>Carex gynandra, Carex folliculata</i>, and <i>Rubus hispidus</i>. Other herbaceous species with high constancy include regenerating woody species and <i>Polygonum sagittatum, Osmunda cinnamomea var. cinnamomea, Galium tinctorium, Dryopteris cristata, Carex trisperma var. trisperma, Impatiens capensis, Viola cucullata, Triadenum fraseri, Juncus effusus, Carex stipata, Glyceria striata, Polygonum punctatum, Glyceria grandis var. grandis, Oxalis montana, Dryopteris intermedia</i>, and <i>Maianthemum canadense</i>. Nonvascular plants are dominated by <i>Sphagnum</i> spp. Indicator species that help to distinguish this community from others within the forest/woodland physiognomy for high-elevation wetlands of the Allegheny Mountains region include <i>Carex canescens, Carex folliculata, Carex gynandra, Glyceria grandis var. grandis</i>, and <i>Triadenum fraseri</i>. Mean species richness of all vascular plants and any nonvascular plants with cover >1% ranges from 31-66 (mean = 48) taxa per 400 square meters.
Comm #1370	Abies balsamea - Picea rubens / Danthonia compressa - Lycopodium spp. / Sphagnum spp. Forest » more details accession code: VB.CC.37504.CEGL006592		12	This acidic conifer woodland or forested swamp occurs on moist to saturated soils in headwater basins in the Allegheny Mountains region of West Virginia, at elevations between 960 and 1130 m. It is a small-patch community fed by slow seepage and rainfall. It occupies gently sloping land (1- to 10-degree slopes) along small headwater streams and in mixed wetland mosaics, often at the base of upland slopes. Microtopography is characterized by irregular hummocks formed over tree roots, tip-up mounds, nurse logs, and decaying wood. Soils are moderately to poorly drained loamy soils with mottling in the upper 20 cm and occasional gleyed horizons. The canopy is open to closed and dominated by <i>Abies balsamea</i> and <i>Picea rubens</i>, with occasional presence of <i>Prunus serotina var. serotina</i>. The subcanopy is dominated by <i>Abies balsamea</i> with smaller amounts of <i>Picea rubens, Acer rubrum</i>, and <i>Betula alleghaniensis var. alleghaniensis</i>. The tall-shrub layer is also dominated by <i>Abies balsamea</i> and <i>Picea rubens</i>. The short-shrub layer contains regenerating canopy species and locally abundant <i>Vaccinium myrtilloides</i> and <i>Hypericum densiflorum</i>. The herbaceous ground layer is fairly diverse, typically including 25-50 species. The most abundant species are <i>Danthonia compressa, Lycopodium obscurum</i>, and <i>Rubus hispidus</i>. Other herbaceous species with high constancy include the regenerating canopy species, <i>Lycopodium clavatum, Carex folliculata, Dennstaedtia punctilobula, Pteridium aquilinum</i>, and <i>Oclemena acuminata</i>. Nonvascular plants are dominated by <i>Sphagnum</i> and <i>Polytrichum</i> species; <i>Leucobryum glaucum</i> is also common. The community is characterized by a number of diagnostic species that highlight the slightly drier habitat of this swamp type and include <i>Carex debilis, Crataegus</i> spp., <i>Lycopodium clavatum, Lycopodium digitatum, Mitchella repens, Polytrichum</i> ssp., <i>Prunus serotina var. serotina</i>, and <i>Pteridium aquilinum</i>. Mean species richness of all vascular plants and any nonvascular plants with cover >1% is 41 taxa per 400 square meters.