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Name
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Reference
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Plots↓
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Description |
Comm #171
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Dichanthelium wrightianum - Dichanthelium erectifolium Marsh
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accession code: urn:lsid:vegbank.org:commConcept:32951-{CD9F921B-3B94-4665-9F12-144A4F3912F5}
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NatureServe Biotics 2019 |
93
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This association includes the mid-margins of limesinks and other Coastal Plain ponds, which are flooded for a shorter period of time than low margins. <i>Dichanthelium wrightianum</i> and/or <i>Dichanthelium erectifolium</i> are dominant in stands. <i>Rhynchospora filifolia</i> may be present. Other characteristic species include <i>Rhexia cubensis, Panicum rigidulum var. combsii, Panicum rigidulum var. pubescens, Panicum verrucosum, Lachnanthes caroliana, Bartonia verna, Lachnocaulon minus</i>, and <i>Centella erecta</i>. |
Comm #172
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Spartina patens - Distichlis spicata - (Juncus roemerianus) Salt Marsh
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accession code: urn:lsid:vegbank.org:commConcept:33039-{62AC3A4F-3476-4955-902B-D0D522F46C6C}
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NatureServe Biotics 2019 |
93
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This association is an irregularly tidally flooded high salt marsh of the mid- and southern Atlantic coast from Delaware south to Florida. It is dominated by <i>Spartina patens</i>, which forms meadows with a distinct "cowlicked" appearance. These meadows occur at slightly higher elevations than adjacent, regularly flooded low salt marsh occupying the zone extending from mean high tide landward approximately to the limit of high spring tides. The substrate is peat of variable depths overlying sand. <i>Distichlis spicata</i> can be codominant. Additional associated species that generally occur in low abundance and sporadically among examples can include <i>Limonium carolinianum, Schoenoplectus americanus, Agalinis maritima, Salicornia depressa, Juncus roemerianus, Sabatia stellaris, Borrichia frutescens, Lythrum lineare, Solidago sempervirens, Pluchea odorata, Hibiscus moscheutos</i>, or <i>Atriplex prostrata</i>. Shrub seedlings of <i>Baccharis halimifolia, Iva frutescens</i>, and/or <i>Morella cerifera</i> may occur sporadically. Diagnostic species are <i>Spartina patens, Distichlis spicata, Borrichia frutescens, Kosteletzkya virginica</i>, and <i>Pluchea odorata</i>. One unusual Virginia occurrence is dominated by <i>Plantago maritima var. juncoides</i>. |
Comm #173
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Zizania aquatica Tidal Marsh
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accession code: urn:lsid:vegbank.org:commConcept:33044-{6881C2C9-A592-49D4-9FFF-0DB21E088D41}
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NatureServe Biotics 2019 |
93
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This is a freshwater tidal marsh characterized by <i>Zizania aquatica</i> that occurs in oligohaline zones of tidal rivers along the north and mid-Atlantic coast of North America. These marshes occur in the lower reaches of freshwater tidal systems, in fresh to slightly brackish areas along flats that are infrequently exposed at very low tides. Soils are highly variable and are composed of varying amounts of silts, silty mucks, fine peat, to very coarse sands. <i>Zizania aquatica</i> is dominant, although only conspicuously so in mid to late summer, when it overtops early season vegetation. This community can be codominated by species such as <i>Pontederia cordata, Peltandra virginica, Polygonum arifolium, Polygonum punctatum</i>, and/or <i>Bidens</i> spp. Common associates are generally a mixture of freshwater and brackish species and can include <i>Sagittaria latifolia, Ludwigia palustris, Impatiens capensis, Leersia oryzoides, Amaranthus cannabinus, Hibiscus moscheutos, Sium suave, Acorus americanus</i>, and <i>Bolboschoenus fluviatilis</i>. This vegetation provides an important food source for migratory birds. |
Comm #174
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HALOGETON GLOMERATUS HERBACEOUS ALLIANCE
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accession code: VB.cc.30421.HALOGETONGLOMER
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NVC 2004 |
92
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Comm #175
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Quercus emoryi Woodland Alliance
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accession code: VB.cc.30813.QUERCUSEMORYIWO
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NVC 2004 |
92
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Comm #176
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Bouteloua eriopoda Herbaceous Alliance
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accession code: VB.cc.30635.BOUTELOUAERIOPO
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NVC 2004 |
92
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Comm #177
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Abies lasiocarpa - Picea engelmannii / Mertensia ciliata Swamp Forest
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accession code: urn:lsid:vegbank.org:commConcept:31571-{6CF8429C-1BAE-4142-8DCB-817DA8327F1B}
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NatureServe Biotics 2019 |
92
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This coniferous riparian plant association occurs in the subalpine spruce-fir zone in New Mexico, Colorado and possibly Wyoming occurring at 3050-3500 m (9000-11,500 feet) elevation. It is a heavily shaded forest with no shrubs and a thick line of wildflowers lining the stream edge. It is a common community in the subalpine zone along the immediate channel edge and adjacent overflow areas of first- and second-order streams. Stream gradient is often moderate (2-15%). Soils are dark brown in color with high organic matter content. They range from a thin layer of skeletal sandy loam to somewhat deep, mottled loamy sand over colluvial boulders. The tree canopy is generally dense and dominated by <i>Picea engelmannii</i> and/or <i>Abies lasiocarpa</i> with few associates. A shrub layer is generally lacking, although <i>Salix drummondiana, Lonicera involucrata</i>, and <i>Ribes</i> spp. can be present but with less than 10% cover. The herbaceous layer is lush and diverse. <i>Mertensia ciliata</i> is nearly always present. Other forbs consistently present include <i>Cardamine cordifolia, Senecio triangularis, Saxifraga odontoloma, Oxypolis fendleri, Trollius laxus ssp. albiflorus, Caltha leptosepala, Ligusticum porteri, Streptopus amplexifolius, Equisetum arvense, Arnica mollis, Geranium richardsonii, Carex bella, Calamagrostis canadensis</i>, and <i>Carex aquatilis</i>, among many others. At high elevations and on drier hummocks, <i>Vaccinium myrtillus</i> and <i>Polemonium pulcherrimum</i> can occur. |
Comm #178
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Platanus occidentalis - Betula nigra / Cornus amomum / (Andropogon gerardii, Chasmanthium latifolium) Floodplain Forest
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accession code: urn:lsid:vegbank.org:commConcept:32592-{43281957-DF13-48E6-9220-6D5E1307E7A5}
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NatureServe Biotics 2019 |
92
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These woodlands occur along high-energy Appalachian rivershores, such as along the New, Bluestone, and Gauley rivers in West Virginia. They maintain an open canopy due to mechanical disturbance (flooding and scouring). The coarse-textured substrates are potentially well-drained, but fluvial topography and proximity to the water table often result in a mixture of well-drained and poorly drained microsites. The usually short, open canopy is composed mostly of flood-battered trees, typically codominated by <i>Platanus occidentalis</i> and <i>Betula nigra</i>. The tallest trees are often the younger ones which have not yet been subjected to damage by severe floods. Additional important trees include <i>Acer saccharinum, Acer rubrum, Carpinus caroliniana, Catalpa speciosa, Diospyros virginiana, Fraxinus americana, Fraxinus pennsylvanica, Nyssa sylvatica, Robinia pseudoacacia, Salix nigra, Ulmus americana</i>, and <i>Ulmus rubra</i>. <i>Tsuga canadensis</i> is present in some sites along the Gauley River. Common shrubs include <i>Alnus serrulata, Cephalanthus occidentalis, Chionanthus virginicus, Cornus amomum, Hypericum prolificum, Ilex verticillata, Lindera benzoin, Physocarpus opulifolius, Salix caroliniana</i>, and <i>Xanthorhiza simplicissima</i>. The invasive exotic shrub <i>Rosa multiflora</i> is sometimes present. There is often a large component of woody vines in the short-shrub layer, including <i>Campsis radicans, Toxicodendron radicans</i>, and <i>Vitis rupestris</i>. The herb layer is composed of a mixture of warm-season grasses and forbs adapted to frequent flooding and high light exposure. Characteristic herbs include <i>Andropogon gerardii, Apocynum cannabinum, Baptisia australis, Chasmanthium latifolium, Conoclinium coelestinum, Cryptotaenia canadensis, Deschampsia flexuosa, Dichanthelium clandestinum, Eupatorium fistulosum, Galium triflorum, Justicia americana, Lobelia cardinalis, Lysimachia ciliata, Onoclea sensibilis, Osmunda regalis var. spectabilis, Packera aurea, Packera paupercula, Panicum virgatum, Pilea pumila, Rudbeckia laciniata, Solidago gigantea, Solidago juncea, Solidago simplex var. racemosa, Solidago rugosa, Symphyotrichum prenanthoides, Tradescantia ohiensis, Trautvetteria caroliniensis, Tripsacum dactyloides, Verbesina alternifolia</i>, and <i>Viola cucullata</i>. Exotic herbs which are common, usually in small amounts, include <i>Prunella vulgaris, Plantago rugelii, Trifolium pratense, Melilotus officinalis, Lysimachia nummularia</i>, and <i>Coronilla varia</i>. |
Comm #179
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PSEUDOROEGNERIA SPICATA ALLIANCE
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accession code: VB.CC.8677.PSEUDOROEGNERIA
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Jennings 2003. Vegetation alliances: composition and function. |
91
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Comm #180
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Bouteloua curtipendula Herbaceous Alliance
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accession code: VB.cc.30633.BOUTELOUACURTIP
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NVC 2004 |
90
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