Login | Datasets | Logout
Jump to... Home PLOT search PLANT search COMMUNITY search Simple search Manage datasets Tutorial About FAQ ------- Site map VegBranch Data dictionary ERD

6771010

View Community Concepts - Summary

add all query results to datacart,   add plots on page to datacart,   drop plots on page from datacart

Add/Drop	Name	Reference	Plots↓	Description
Comm #6761	CEGL002170 » more details accession code: VB.CC.4696.CEGL002170 NOT CURRENTLY ACCEPTED	EcoArt 2002	0
Comm #6762	Quercus rubra / Rhododendron catawbiense - Rhododendron arborescens Woodland » more details accession code: VB.CC.27194.QUERCUSRUBRARHO	Southeastern Ecology Working Gro...	0	This association consists of open woodlands dominated by stunted red oaks, over a dense layer of ericaceous shrubs in the high elevations (greater than 1200 m [4000 feet]) of the Southern Blue Ridge. The canopy is usually dominated by Quercus rubra, but significant amounts of Quercus alba are also typically present. Amelanchier laevis and Sorbus americana occur over a dense shrub layer of Rhododendron catawbiense, Rhododendron arborescens, Rhododendron calendulaceum, Rhododendron maximum, Menziesia pilosa, Gaylussacia ursina, Leucothoe recurva, Vaccinium simulatum, and Viburnum nudum var. cassinoides.
Comm #6763	Prunus serotina - Sassafras albidum - Amelanchier canadensis - Quercus velutina / Smilax rotundifolia Forest » more details accession code: VB.CC.31024.CEGL006145	Eastern Ecology Working Group of...	0	This maritime forest community of the North Atlantic Coast Ecoregion occurs on sheltered backdunes, bluffs, or more interior coastal areas not directly influenced by overwash but affected by salt spray and wind-pruning. Vegetation in these sheltered areas is sometimes referred to as "sunken forest." This name refers to the topographic position of these examples, which are found in large depressions, lower in elevation (by 1-3 m) than the interdunes. These examples are shielded from strong prevailing winds and salt spray, which permits lush growth of broadleaf shrub and vine species. Soils are coarse, well-drained sand subject to considerable shifting during coastal storms, or till and sand deposits of terminal moraines. Physiognomy is variable and ranges from closed-canopy forest to open woodland to dense tall shrubland, and may be more accurately called scrub. Trees found in this community are usually stunted and flat-topped; the canopy may be only 3-7 m tall. Dominant trees vary locally and include <i>Prunus serotina, Sassafras albidum</i>, and <i>Amelanchier canadensis</i>, with admixtures of <i>Celtis occidentalis, Quercus velutina, Pinus rigida, Juniperus virginiana, Acer rubrum, Amelanchier stolonifera</i>, and in southern occurrences <i>Quercus coccinea, Quercus falcata, Liquidambar styraciflua</i>, and <i>Ilex opaca</i>. Additional shrub species may also contribute substantially to the canopy and include <i>Vaccinium corymbosum, Morella pensylvanica (= Myrica pensylvanica), Gaylussacia baccata, Viburnum recognitum, Viburnum dentatum</i>, and <i>Rosa virginiana</i>. A true shrub layer is generally not present. Lianas are common and can be dense in the canopy or the ground layer; species include <i>Parthenocissus quinquefolia, Toxicodendron radicans, Smilax rotundifolia</i>, and <i>Smilax glauca</i>. The understory is generally sparse with tree or vine seedlings plus herbaceous species, including <i>Aralia nudicaulis, Moehringia lateriflora (= Arenaria lateriflora), Maianthemum stellatum (= Smilacina stellata)</i>, and <i>Maianthemum canadense</i>. Several invasive species can be prevalent in this association, including <i>Lonicera morrowii, Lonicera japonica, Ligustrum vulgare, Berberis vulgaris</i>, and <i>Celastrus orbiculata</i>.
Comm #6764	CEGL001857 » more details accession code: VB.CC.4411.CEGL001857 NOT CURRENTLY ACCEPTED	EcoArt 2002	0
Comm #6765	Artemisia nova / Pleuraphis jamesii Shrubland » more details accession code: VB.CC.34323.CEGL001420	Western Ecology Working Group of...	0
Comm #6766	Eroding Clay Bank Sparse Vegetation » more details accession code: VB.CC.25740.ERODINGCLAYBANK	Midwestern Ecology Working Group...	0	This eroding clay bank type is found localized along banks of rivers and lakes in the midwestern United States and adjacent Canada. Stands occur on active steep and near-vertical exposures of unconsolidated clays that are at least 3 m in height. Stands are subject to active erosional processes. They are typically found along lakes and rivers. Moisture and temperature fluctuations can be extreme. The vegetation is typically sparse to absent. Little information is available on species that persist in this habitat.
Comm #6767	Deschampsia caespitosa - (Sporobolus heterolepis, Schizachyrium scoparium) - Carex crawei - Packera paupercula Herbaceous Vegetation » more details accession code: VB.CC.35974.CEGL005110	Midwestern Ecology Working Group...	0	The tufted hairgrass wet alvar grassland occurs in the Great Lakes region of the United States and Canada, in northern Michigan, southern Ontario, and northern New York. Stands occur on very shallow, organic soils that cover flat limestone and dolostone outcrops (pavements). Average soil depths in this grassland community are less than 10 cm. This community has a characteristic soil moisture regime of alternating wet and dry seasons; many of them have flooded or saturated soils in early spring and late fall, combined with summer drought in most years. They usually occur in a patchy landscape mosaic with other alvar communities, including annual alvar pavement-grassland, little bluestem alvar grassland, alvar nonvascular pavement, and juniper alvar shrubland. In these landscape mosaics, the tufted hairgrass wet alvar grassland usually occupies the lowest, wettest positions; the actual elevation differences may be very subtle, with differences of less than 10 or 15 cm. The dominant grasses and sedges are <i>Deschampsia caespitosa, Carex crawei, Sporobolus heterolepis</i>, and <i>Eleocharis compressa</i>. Other characteristic grasses and herbs include <i>Packera paupercula (= Senecio pauperculus), Sporobolus neglectus, Sporobolus vaginiflorus, Isanthus brachiatus (= Trichostema brachiatum)</i>, and <i>Allium schoenoprasum</i>. Typically there are several turf and weft mosses forming a patchy mat at the base of grasses and forbs; typical mosses are <i>Bryum pseudotriquetrum, Abietinella abietina, Tortella tortuosa</i>, and <i>Drepanocladus</i> spp. There are very few shrubs in this grassland community (usually less than 1% cover). The community often includes small patches of exposed bedrock pavement (patches are less than 1.25 acres or 0.5 ha).
Comm #6768	Juniperus virginiana - Maclura pomifera / Bouteloua curtipendula - Thelesperma filifolium - Packera tampicana Wooded Herbaceous Vegetation » more details accession code: VB.CC.20734.JUNIPERUSVIRGIN	Southeastern Ecology Working Gro...	0	This limestone glade community is found in the Upper West Gulf Coastal Plain of Oklahoma (Goodland limestone) and adjacent southwestern Arkansas (DeQueen and Dierks limestone). Occurrences of the community are typically on narrow exposures, 75-200 feet wide. These sites are predominantly droughty and very dry by the end of the summer, but they can be seasonally wet, with water occasionally ponded in shallow depressions during winter and early spring. The overall aspect is herbaceous, with woody plants largely confined to islands where pockets of deeper soil are found. The woody plants of these areas include Maclura pomifera (which may be dominant), Juniperus virginiana, Ulmus crassifolia, and Symphoricarpos orbiculatus. The most typical grasses of these glades are Bouteloua curtipendula, Eragrostis spectabilis, and Schizachyrium scoparium. The other most frequent plants of the glade openings include Allium canadense, Anemone berlandieri, Astranthium integrifolium, Croton capitatus, Echinacea pallida?, Heliotropium tenellum, Leavenworthia aurea, Lesquerella angustifolia (which can be abundant), Monarda fistulosa var. stipitatoglandulosa (= Monarda stipitatoglandulosa), Ranunculus fascicularis, Rudbeckia hirta, Clinopodium arkansanum (= Satureja arkansana), Packera tampicana (= Senecio imparipinnatus), and Thelesperma filifolium. Other occasional forbs include Callirhoe papaver, Chaetopappa asteroides, Chamaesyce nutans, Dracopis amplexicaulis (= Rudbeckia amplexicaulis), Hedyotis nigricans, Hypoxis hirsuta, Neptunia lutea, and Ruellia humilis. Outcrops and limestone fragments are present at the surface, which are of minor areal extent but diagnostic of the community type. Soil is often thin or nonexistent, but where deeper soil exists, it is dark (black) and cracks when dry, illustrating a relationship to the blackland prairie.
Comm #6769	Quercus muehlenbergii / Poa spp. - Allium cernuum - Eleocharis compressa / Aulacomnium palustre - Bryum spp. Wooded Herbaceous Vegetation » more details accession code: VB.CC.36870.CEGL005133	Midwestern Ecology Working Group...	0	Chinquapin oak - nodding onion alvar woodland is found only in western Lake Erie on Pelee Island in southern Ontario, Canada, on shallow soils over flat limestone outcrops (pavements). This is a savanna community with scattered trees forming 10-25% canopy cover, and a variable understory with shrubby patches and grassy patches. <i>Quercus muehlenbergii</i> is the most abundant tree, but <i>Quercus bicolor, Fraxinus quadrangulata</i>, and <i>Juniperus virginiana</i> are also characteristic trees. The most abundant shrubs in the shrubby patches are <i>Cornus drummondii, Viburnum rafinesquianum, Rhus aromatica, Zanthoxylum americanum, Rhus typhina</i>, and <i>Symphoricarpos albus</i>. The dominant grass in the grassy patches is <i>Poa compressa</i>; other characteristic herbs include <i>Allium cernuum, Carex molesta, Packera paupercula (= Senecio pauperculus), Panicum flexile</i>, and <i>Isanthus brachiatus (= Trichostema brachiatum)</i>. Most of the area within this community has been grazed, and several weedy exotic species are common, including <i>Poa pratensis</i> and <i>Hypericum perforatum</i>.
Comm #6770	Typha spp. - Schoenoplectus tabernaemontani - Mixed Herbs Southern Great Lakes Shore Herbaceous Vegetation » more details accession code: VB.CC.36759.CEGL005112	Midwestern Ecology Working Group...	0	This deep emergent marsh community typically occurs in the southern Great Lakes region of the United States and Canada, including southern Lake Michigan, Lake St. Clair, Lake Erie, Lake Ontario, and into the St. Lawrence River, and possibly Lake Champlain. Remaining stands in the area are primarily found in lacustrine estuaries, barrier-beach lagoons, or sand-spit swales. In the Great Lakes the estuaries are often formed at the mouths of rivers drowned by the post-glacial rise in lake level, whereas in the St. Lawrence River the estuaries are formed from small streams or rivers that occupy apparent pre-glacial valleys that have been partly filled in by outwash and alluvial deposits to form fairly broad, flat basins. Storms, seiches, and water level cycles create a very dynamic pattern of species composition and structure in the vegetation. Water depth generally exceeds 0.3 m. Typical dominants include the emergents <i>Schoenoplectus tabernaemontani (= Scirpus tabernaemontani)</i> and <i>Typha</i> spp. (<i>Typha angustifolia, Typha x glauca, Typha latifolia</i>). Stands in Lake Erie and Lake Ontario may contain more pure <i>Typha angustifolia</i> stands, or mixes of that species with <i>Calamagrostis canadensis</i>. <i>Thelypteris palustris</i> is a common fern. <i>Impatiens capensis</i> may be common in open parts of the marsh. Floating and rooted aquatics include <i>Ceratophyllum demersum, Lemna minor, Nuphar advena (= Nuphar lutea ssp. advena), Nymphaea odorata, Potamogeton gramineus, Sagittaria latifolia</i>, and <i>Spirodela polyrrhiza</i>.