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Name
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Reference
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Plots↓
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Description |
Comm #10081
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Juniperus ashei / Bouteloua (curtipendula, hirsuta) Woodland
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accession code: VB.CC.27618.JUNIPERUSASHEIB
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Southeastern Ecology Working Gro... |
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Juniperus ashei woodlands in the Arbuckle Mountains of Oklahoma (Johnston, Marshall, Murray, and Pontotoc counties). Other characteristic species include Bouteloua curtipendula, Bouteloua hirsuta, Bouteloua rigidiseta, Engelmannia peristenia (= Engelmannia pinnatifida), Forestiera pubescens, and Fraxinus texensis. |
Comm #10082
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Pinus albicaulis / Penstemon davidsonii Woodland
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accession code: VB.CC.19688.PINUSALBICAULIS
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Western Ecology Working Group of... |
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Comm #10083
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Platanus wrightii - Fraxinus velutina Forest
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accession code: VB.CC.17984.PLATANUSWRIGHTI
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Western Ecology Working Group of... |
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Comm #10084
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Pinus strobus - Quercus (rubra, velutina) - Fagus grandifolia Forest
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accession code: VB.CC.25646.PINUSSTROBUSQUE
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Eastern Ecology Working Group of... |
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This mixed white pine - oak forest of northeastern states occurs on dry-mesic to mesic, acidic, nutrient-poor, sandy loam to sandy soils. In the northern glaciated portion of the range, the forest occurs on outwash plains or moraines, as well as mid and lower slopes, protected ravines, and protected ridges of shale, sandstone, or other sedimentary rock; occasionally underlain by metamorphic or igneous rock. It occurs at elevations below 3000 feet throughout the range. The tree canopy is dominated by Pinus strobus with a mixture of oaks including Quercus velutina, Quercus rubra, Quercus alba, Quercus prinus, and in the southern portions of the range, Quercus coccinea. Oak species drop out at the northern extreme of the type's range, leaving only Quercus rubra. Fagus grandifolia is characteristic but not always present. Other less frequent canopy associates may include Acer rubrum, Carya alba, Populus tremuloides, Tsuga canadensis, and at the northern range limit may include Betula papyrifera and Populus grandidentata. The variable subcanopy may include Hamamelis virginiana; other species such as Carpinus caroliniana, Cornus florida, and Nyssa sylvatica may be present in the central and southern portions of the range. The sparse to well-developed, generally ericaceous shrub layer includes Gaylussacia spp., Kalmia latifolia, Vaccinium spp., as well as Rubus spp., Corylus americana, Gaultheria procumbens, Sassafras albidum, and Viburnum prunifolium. The herb layer ranges from sparse to moderately dense cover, with species including Aralia nudicaulis, Ageratina altissima, Amphicarpaea bracteata, Brachyelytrum erectum, Carex communis, Carex woodii, Carex pensylvanica, Carex lucorum, Carex debilis, Melampyrum lineare, Pteridium aquilinum, Trientalis borealis, Gaultheria procumbens, Chimaphila maculata, Desmodium nudiflorum, Galium latifolium, Goodyera pubescens, Hieracium venosum, Houstonia purpurea, Maianthemum racemosum, Maianthemum canadense, Medeola virginiana, Mitchella repens, Monotropa uniflora, Poa cuspidata, Polygonatum biflorum, Polystichum acrostichoides, and/or Viola hastata. The bryophyte layer is not well documented but supports Leucobryum glaucum and Polytrichum commune in occurrences in the northern portion of the range (Acadia National Park). This association is differentiated from mixed oak - pine forests to the south by Fagus grandifolia and the absence of southern ranging species Liriodendron tulipifera, Galax urceolata, Trillium catesbaei, Halesia tetraptera, and others. The absence of Ilex glabra and the unimportance of Quercus alba differentiates this from a closely related association of northeastern coastal areas, Pinus strobus - Quercus alba / Ilex glabra Forest (CEGL006382). Earlier successional versions in New England have less pine (usually) and more Betula spp. and Acer rubrum, and are separated as Quercus rubra - Acer rubrum - Betula spp. - Pinus strobus Forest (CEGL006506). |
Comm #10085
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I.A.1.C
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accession code: VB.CC.357.IA1C
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EcoArt 2002 |
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Comm #10086
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A.1770
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accession code: VB.CC.1507.A1770
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
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This alliance includes estuarine aquatic communities, dominated by ~Vallisneria americana$, sometimes in association with ~Ruppia maritima, Zannichellia palustris, Myriophyllum$ sp., and/or ~Najas guadalupensis$. It is found in the fresh or oligohaline waters of the upper reaches of estuarine bayous and creeks, and the main channel and tributaries of rivers where they enter estuaries. It is known from upper Trinity Bay in Texas, the Pascagoula River, bayous and coastal waters of Mississippi, lakes in coastal Louisiana, and in Apalachicola Bay, Florida. |
Comm #10087
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III.A.5.C
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accession code: VB.CC.361.IIIA5C
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EcoArt 2002 |
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Comm #10088
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Betula alleghaniensis / Ribes glandulosum / Polypodium appalachianum Forest
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accession code: VB.CC.21884.BETULAALLEGHANI
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Southeastern Ecology Working Gro... |
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This association includes high-elevation boulderfield forests of the southern Appalachians, strongly dominated by Betula alleghaniensis, with few or no other species in the canopy, and with other species indicative of high elevations. This community occurs in a cool, humid climate, on steep, rocky, northwest- to northeast-facing, middle to upper concave slopes, or in saddles between ridges, at elevations of 1370-1615 m (4500-5300 feet). It is known from the high elevations of the Blue Ridge from West Virginia south to eastern Tennessee and western North Carolina. This forest is distinguished by a closed to somewhat open canopy dominated by Betula alleghaniensis, occurring over angular rocks (0.25-1 m diameter) covered by thin soil, lichens, mosses or vines. The rocks may be almost totally covered by moss. Betula alleghaniensis in the canopy are often stunted and gnarled, with roots that may have grown to encircle the boulders. Tree density is typically less than that of the surrounding forests. Other species that may form a minor canopy component include Aesculus flava, Prunus pensylvanica, Sorbus americana, Acer spicatum, Picea rubens, Tilia americana var. heterophylla, Sambucus racemosa var. racemosa (= Sambucus racemosa var. pubens), or Quercus rubra. Tree windthrow is common, leaving patches of exposed mineral soil and gaps in the canopy. The shrub density is typically high but may vary between occurrences. Herbaceous cover is generally sparse because of thin, rocky soil, but herbs and mosses may cover the rocks and boulders. Characteristic species include, in the herb stratum, Oclemena acuminata (= Aster acuminatus), Eurybia chlorolepis (= Aster chlorolepis), Aconitum reclinatum, Cardamine clematitis, Carex aestivalis, Actaea podocarpa (= Cimicifuga americana), Claytonia caroliniana, Clintonia borealis, Dryopteris campyloptera, Dryopteris marginalis, Huperzia lucidula, Oxalis montana, Polypodium appalachianum, Streptopus amplexifolius, and in the shrub stratum, Acer pensylvanicum, Acer spicatum, Amelanchier arborea var. austromontana, Diervilla sessilifolia, Hydrangea arborescens, Ilex montana, Lonicera canadensis, Ribes glandulosum, Ribes rotundifolium, Rubus canadensis, Sambucus racemosa var. racemosa, Vaccinium erythrocarpum, and Viburnum lantanoides. Seepage areas are common, producing wet microhabitats with unique species assemblages (Chelone lyonii, Chrysosplenium americanum, Circaea alpina, Rudbeckia laciniata, Impatiens pallida, and Monarda didyma). This association is distinguished by being strongly dominated by Betula alleghaniensis, with few or no other species in the canopy, and with other species indicative of high elevations (e.g., Abies fraseri, Dryopteris campyloptera, Ribes glandulosum, Rugelia nudicaulis, Streptopus amplexifolius, Prunus pensylvanica, and Sorbus americana. On less extreme sites, generally at lower elevations in the Blue Ridge and adjacent montane ecoregions, a similar boulderfield forest is Betula alleghaniensis / Acer spicatum / Hydrangea arborescens - Ribes cynosbati / Dryopteris marginalis Forest (CEGL004982). Similar Betula alleghaniensis-dominated forests occur on glaciated rocky slopes in the upper mid-Atlantic and in the northeastern United States. The Betula alleghaniensis-dominated periglacial boulderfields of the southern Appalachian Mountains are distinguished from the northern forests by the occurrence of southern Appalachian endemic species, better developed shrub layers and slightly less species diversity. |
Comm #10089
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Pinus elliottii var. densa / Sideroxylon salicifolium - Chrysobalanus icaco - Ilex cassine Woodland
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accession code: VB.CC.35721.CEGL003535
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Southeastern Ecology Working Gro... |
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This rockland community is restricted to the southwestern tropical tip of the Florida peninsula. It occurs on flatlands with exposed limestone substrate and is considered mesic-xeric and subtropical. This woodland experiences frequent fire. Vegetation is comprised on <i>Pinus elliottii</i>, palms and/or hardwoods, and mixed grasses and herbs. |
Comm #10090
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CEGL006388
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accession code: VB.CC.6881.CEGL006388
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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