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Name
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Reference
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Plots↓
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Description |
Comm #13351
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A.1996
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accession code: VB.CC.1698.A1996
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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This alliance includes depressional wetlands with an open to nearly closed canopy dominated by various mixtures of ~Quercus alba, Nyssa sylvatica$, and sometimes other trees. The flooding regime is seasonal, though for shorter duration than some related alliances, such as the ~~Quercus phellos$ Seasonally Flooded Forest Alliance (A.330)$$, ~~Quercus lyrata - (Carya aquatica)$ Seasonally Flooded Forest Alliance (A.328)$$, ~~Quercus palustris - (Quercus bicolor)$ Seasonally Flooded Forest Alliance (A.329)$$, and ~~Nyssa (aquatica, biflora, ogeche)$ Pond Seasonally Flooded Forest Alliance (A.324)$$. Typically, flooding is for several months in the late winter into early spring. |
Comm #13352
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Fagus grandifolia - Quercus (alba, rubra) / Acer barbatum / Asimina triloba Forest
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accession code: VB.CC.34969.CEGL004072
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Southeastern Ecology Working Gro... |
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This forest, dominated by <i>Fagus grandifolia</i> and <i>Quercus</i> spp., occurs on deep loess soils in the Gulf Coastal Plain region of Arkansas, northern Mississippi, western Tennessee, and western Kentucky. Examples are diverse mesic hardwood forests found on southern Crowley's Ridge (Arkansas) and related loess bluffs east of the Mississippi River. These forests have a rich species composition of mesic flora, including some species restricted, or nearly so, to this habitat in the region. <i>Fagus grandifolia</i> and <i>Quercus alba</i> and/or <i>Quercus rubra</i> may be the most important species in the canopy, although <i>Fagus</i> is often the single most dominant tree (other locally mesic stands dominated by oaks rather than <i>Fagus</i> would be accommodated by ~<i>Quercus (rubra, alba, velutina) / Acer barbatum / Asimina triloba</i> Forest (CEGL004069)$$). The presence of <i>Quercus rubra</i> is an important component of these stands and helps to distinguish this association from related types (generally found south of this type) that support only <i>Quercus alba</i>. Stands support a variety of other species indicative of rich mesic conditions, including <i>Acer barbatum, Ostrya virginiana, Asimina triloba, Arundinaria gigantea</i>, and <i>Cynoglossum virginianum</i>. Related forests of more southerly loess bluffs occur within the range of <i>Magnolia grandiflora</i> [see ~<i>(Fagus grandifolia) - Quercus pagoda - Magnolia grandiflora / Hydrangea quercifolia / Cystopteris protrusa - Thelypteris kunthii</i> Forest (CEGL007461)$$]. |
Comm #13353
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Picea sitchensis / Gaultheria shallon Forest
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accession code: VB.CC.33241.CEGL000401
NOT CURRENTLY ACCEPTED
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Western Ecology Working Group of... |
0
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Comm #13354
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CEGL001260
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accession code: VB.CC.3847.CEGL001260
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #13355
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CEGL003388
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accession code: VB.CC.5444.CEGL003388
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #13356
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V.A.6.N.h
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accession code: VB.CC.507.VA6NH
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EcoArt 2002 |
0
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Comm #13357
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Spiraea betulifolia Shrubland
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accession code: VB.CC.32217.CEGL005835
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Western Ecology Working Group of... |
0
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The association is known from Glacier National Park and the Blackfeet Indian Reservation, on both sides of the Continental Divide in Montana. Stands of this shrubland association are found on mid to lower portions, including toeslopes, of moderate to steep slopes and bedrock outcrops. They occur on all aspects in siltstone and colluvial and glacier-fluvial deposits. The elevation ranges between 1770 and 1973 m (5805-6472 feet). The soil tends to be a rapidly to well-drained sandy or clay loam that contains an abundance of gravel and rock. Ground surface cover is variable, but tends towards very rocky or bedrock outcrops, and significant portions of bare soil. There is moderate cover of litter and duff in most stands, as well as moderate bryophyte cover in some stands. This shrubland association is dominated by a sparse, short-shrub canopy of <i>Spiraea betulifolia</i> (38% average cover). Numerous shrub species can be present, including <i>Rubus parviflorus, Juniperus communis, Sambucus racemosa</i>, and <i>Vaccinium scoparium</i>, but all have low to insignificant cover and constancy. Tree seedlings and saplings of <i>Abies lasiocarpa, Pinus contorta</i>, and <i>Populus tremuloides</i> can be present, but not abundant. The moderate to dense herbaceous layer (64% average cover) is diverse with graminoids and forb species. Common species include <i>Carex geyeri, Chamerion angustifolium, Thalictrum occidentale, Arnica cordifolia</i>, and <i>Achillea millefolium</i>. |
Comm #13358
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A.565
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accession code: VB.CC.2209.A565
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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This alliance occurs on low-elevation, semi-riparian localities scattered throughout most of the Rocky Mountains, and west into the Columbia Basin of Washington and Oregon. Valleys vary from V-shaped to trough-shaped or broad and flat, and stream gradients are typically moderate. These woodlands can occur as broad, extensive stands on wider floodplain terraces or as narrow, long ribbons. Sites include mountain valleys, foothill ravines, terraces and alluvial benches of major streams and rivers. In southern Arizona, stands occur along smaller perennial streams and washes. Soils are cobbly, coarse-textured and derived from alluvium. Vegetation included in this semi-riparian alliance is characterized by an open canopy of the conifers ~Pinus ponderosa$ and often ~Pseudotsuga menziesii$. Other trees occasionally present include ~Populus balsamifera ssp. trichocarpa, Populus angustifolia, Acer negundo, Quercus$ spp., ~Juniperus deppeana, Juniperus scopulorum, Pinus edulis$, and ~Pinus discolor$ in southern stands. Composition and structure of understory vegetation vary greatly by geographic region. Typically a tall-shrub layer is present, with species such as ~Alnus$ spp., ~Betula occidentalis, Cornus sericea, Crataegus douglasii, Juglans major, Prunus virginiana, Quercus garryana$, or ~Salix$ spp. Some stands have a short-shrub layer that includes species such as ~Frangula betulifolia (= Rhamnus betulifolia), Holodiscus discolor, Rhus aromatica, Ribes$ spp., ~Physocarpus malvaceus, Rosa woodsii$, or ~Symphoricarpos$ spp. Woody vines are important in some stands, including ~Toxicodendron rydbergii$ or ~Vitis arizonica$. The herbaceous layer can be dominated by either graminoids or forbs. Graminoids can include ~Panicum bulbosum, Bromus ciliatus var. richardsonii (= Bromus richardsonii)$, and ~Pascopyrum smithii$. Forbs can include ~Geranium caespitosum, Galium$ spp., ~Pteridium aquilinum, Thalictrum fendleri, Potentilla$ spp., ~Achillea millefolium$, and ~Maianthemum stellatum$. Diagnostic of this semi-riparian alliance is ~Pinus ponderosa$-dominated woodland stands with brief seasonal flooding during the growing season. |
Comm #13359
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CEGL003225
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accession code: VB.CC.5357.CEGL003225
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #13360
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CEGL008330
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accession code: VB.CC.7671.CEGL008330
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EcoArt 2002 |
0
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