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Name
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Reference
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Plots↓
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Description |
Comm #7531
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Tsuga mertensiana - Abies amabilis / Rhododendron macrophyllum Forest
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accession code: VB.CC.27158.TSUGAMERTENSIAN
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Western Ecology Working Group of... |
0
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Comm #7532
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Bucida buceras Woodland
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accession code: VB.CC.36407.CEGL004845
NOT CURRENTLY ACCEPTED
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Southeastern Ecology Working Gro... |
0
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Stands are dominated by <i>Bucida buceras</i>, with <i>Savia sessiliflora, Krugiodendron ferreum</i>. |
Comm #7533
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Quercus douglasii - Quercus wislizeni / Bromus sp. - Daucus pusillus Woodland
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accession code: VB.CC.19764.QUERCUSDOUGLASI
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Western Ecology Working Group of... |
0
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Comm #7534
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Tilia americana - Acer saccharum - Acer nigrum / Laportea canadensis Forest
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accession code: VB.CC.31204.CEGL006405
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Eastern Ecology Working Group of... |
0
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This type is a floodplain forest of streams with small (less than 2 square mile) watersheds, currently known only from coastal New Hampshire (Great Bay watershed) and southern Maine. Soils are poorly drained, silty loams with very shallow or no organic horizons. Dominant canopy species are <i>Tilia americana</i> and <i>Fraxinus americana</i>, with less abundant or less frequent associates <i>Acer saccharum, Carya ovata, Acer rubrum, Ulmus americana, Quercus rubra</i>, and <i>Acer nigrum</i>. Shrubs may include <i>Carpinus caroliniana, Cornus amomum, Viburnum lentago</i>, and associated herbs include <i>Laportea canadensis, Solidago rugosa, Athyrium filix-femina, Boehmeria cylindrica, Impatiens capensis, Ludwigia palustris, Onoclea sensibilis</i>, and <i>Thalictrum pubescens</i>. |
Comm #7535
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Abies lasiocarpa / Spiraea betulifolia Forest
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accession code: VB.CC.21744.ABIESLASIOCARPA
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Western Ecology Working Group of... |
0
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Comm #7536
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I.A.9.C
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accession code: VB.CC.257.IA9C
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EcoArt 2002 |
0
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Comm #7537
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Tsuga canadensis - Betula alleghaniensis - Acer saccharum / Dryopteris intermedia Forest
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accession code: VB.CC.30987.CEGL006109
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Eastern Ecology Working Group of... |
0
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This association comprises hemlock - northern hardwood forests of the northeastern United States. This forest is associated with cool, dry-mesic to mesic sites and acidic soils, often on rocky, north-facing slopes. Soils can have a thick, poorly decomposed duff layer over sandy loams. <i>Tsuga canadensis</i> is characteristic and usually dominant in the coniferous to mixed canopy. While hemlock generally forms at least 50% of the canopy, in some cases it may be as low as 25% relative dominance. Hardwood codominants include <i>Betula alleghaniensis</i> or <i>Acer saccharum</i>, with <i>Fagus grandifolia</i> common but not usually abundant in all but the very southern portion of the range of this type. <i>Betula lenta</i> may replace <i>Betula alleghaniensis</i> in some areas. <i>Ostrya virginiana</i> may be present as a small tree. <i>Quercus</i> spp. and <i>Pinus strobus</i> tend to be absent or, if present, only occur with low abundance. The shrub layer may be dense to fairly open and often includes <i>Viburnum acerifolium</i> and <i>Acer pensylvanicum</i> in addition to <i>Tsuga canadensis</i> regeneration. Herbs may be sparse, particularly in dense shade, but include <i>Dryopteris intermedia, Medeola virginiana, Oxalis montana, Mitchella repens, Maianthemum canadense, Uvularia sessilifolia, Polystichum acrostichoides, Trientalis borealis, Huperzia lucidula (= Lycopodium lucidulum), Eurybia divaricata (= Aster divaricatus), Oclemena acuminata (= Aster acuminatus), Dennstaedtia punctilobula</i>, and <i>Thelypteris noveboracensis</i>. Nonvascular plants may be well-developed, often characterized by the liverwort <i>Bazzania trilobata</i>. Diagnostic characteristics of this forest are the presence of <i>Betula alleghaniensis</i> and <i>Acer saccharum</i> and a lack of abundant <i>Quercus</i> spp., <i>Pinus strobus</i>, or <i>Betula lenta</i>. |
Comm #7538
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CEGL003098
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accession code: VB.CC.5306.CEGL003098
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #7539
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Populus deltoides (ssp. wislizeni, ssp. monilifera) / Forestiera pubescens var. pubescens Forest
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accession code: VB.CC.32081.CEGL005971
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Western Ecology Working Group of... |
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This mature riparian forest association is found in the San Juan and Rio Grande watersheds in northern and central New Mexico, the Animas River watershed in southwestern Colorado, and is likely present in the Pecos drainage farther to the east. It occurs along low-gradient rivers of wide lowland valleys at elevations from 1530 to 1800 m (5000-5900 feet). Sites range from relatively dry, elevated terraces that are rarely flooded, to more frequently flooded mid-elevation sidebars and island bars of low-gradient rivers. Soils are moist or dry, poorly developed Entisols or, where some soil development has occurred on older terraces, Inceptisols. Soil textures are coarse-loamy throughout the profile, or with sandy layers overlain by finer loam or silt. All soils have high plant-available water (8.5% on average), and the water table is usually within 2 m of the surface during the growing season. This community type is characterized by mature, often dense and closed canopies of <i>Populus deltoides ssp. wislizeni</i> or <i>Populus deltoides ssp. monilifera</i> with occasional <i>Salix gooddingii</i> in the subcanopy. Other trees may be present in the subcanopy but are not normally abundant. <i>Populus deltoides</i> saplings are rare or absent. The shrubs are well-represented to abundant (10-75% cover) and dominated by <i>Forestiera pubescens var. pubescens</i> with <i>Rhus trilobata</i> and <i>Amorpha fruticosa</i> common. In Colorado, <i>Elaeagnus angustifolia</i> and <i>Tamarix ramosissima</i> can also be present. The twining, woody vines of <i>Parthenocissus quinquefolia</i> and <i>Clematis ligusticifolia</i> can often be found among downed logs or wrapped around trees and shrubs. The herbaceous layer is sparse to well-represented (10-15% cover) and is a mix of grasses and forbs that reflect the relatively drier habitat. Overall, species diversity is high with 81 species recorded for the type (although 24-30% were exotics). As a keystone species, the reproduction of <i>Populus deltoides</i> after flooding (and sufficient subsequent base flows) is critical to the sustainability of this community. |
Comm #7540
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CEGL003985
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accession code: VB.CC.5779.CEGL003985
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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