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Comm #4711	Brasenia schreberi Eastern Aquatic Vegetation » more details accession code: urn:lsid:vegbank.org:commConcept:33313-{72AFF9E0-2E24-4000-B0C1-339264AAC8D4}	NatureServe Biotics 2019	1	This community is found throughout the southeastern United States, from Georgia to Texas and in the interior to Kentucky, Oklahoma, and Arkansas. This vegetation occurs in a range of natural ponds and impoundments, including ponds, beaver ponds, and lake margins. <i>Brasenia schreberi</i> is the dominant plant species; other species may include <i>Leersia oryzoides, Lemna valdiviana, Juncus effusus, Stuckenia pectinata, Nymphaea odorata</i>, and <i>Spirodela polyrrhiza</i>. An occurrence along the Texas coast at McFaddin National Wildlife Refuge occupies the "open water" areas interspersed with emergent vegetation and "flotant" marsh dominated by <i>Panicum hemitomon</i> (~<i>Panicum hemitomon</i> Marsh (CEGL004665)$$). Other floating aquatics present include <i>Nelumbo lutea, Nymphaea odorata, Nymphaea mexicana</i>, and <i>Utricularia</i> spp., along with submersed aquatics such as <i>Cabomba caroliniana</i> and <i>Ceratophyllum demersum</i> and rooted aquatics such as <i>Pontederia cordata</i> and <i>Zizaniopsis miliacea</i>. Additional information is needed on the full range and variability of expression of this vegetation.
Comm #4712	Nyssa biflora / Cephalanthus occidentalis - Eubotrys racemosa Swamp Forest » more details accession code: urn:lsid:vegbank.org:commConcept:33335-{A4DCF4D6-90BD-4A3B-8FE9-6EF15DE07750}	NatureServe Biotics 2019	1	This vegetation occurs in seasonally flooded upland pools in the lower Piedmont of North Carolina. Vegetation is zoned with an outer ring of trees, a more interior ring of shrubs, herbs and vines, and a central area with or without standing water year round depending on precipitation. Tree species include <i>Nyssa biflora, Acer rubrum var. rubrum, Nyssa sylvatica, Liquidambar styraciflua</i>, and <i>Quercus nigra</i>. The shrub zone is dominated by <i>Cephalanthus occidentalis, Eubotrys racemosa</i>, and <i>Viburnum nudum var. nudum</i>, with <i>Alnus serrulata, Ilex verticillata, Itea virginica</i>, and others. Herbaceous dominants include <i>Smilax laurifolia, Juncus repens, Carex crinita</i>, and <i>Panicum virgatum var. virgatum</i>.
Comm #4713	Taxodium distichum / Zizania aquatica - Carex canescens ssp. disjuncta Tidal Woodland » more details accession code: urn:lsid:vegbank.org:commConcept:33438-{BD99F70E-A811-4ED7-953F-A5383513F9DE}	NatureServe Biotics 2019	1	This community is known from the Northwest River, Virginia. It occurs on oligotrophic, somewhat quaking peat at the upland edge of an extensive low marsh, where frequently flooded by wind tides. It retains standing water for most of the growing season and may receive groundwater seepage from adjacent uplands. Fire may also be important in the maintenance of this community. <i>Taxodium distichum</i> forms an open, stunted canopy. Shrubs dominate the upland edge, and are dominated by <i>Morella cerifera, Clethra alnifolia, Lyonia ligustrina var. foliosiflora</i>, and <i>Toxicodendron radicans ssp. radicans</i>. Away from the upland edge, <i>Eleocharis rostellata, Eleocharis fallax</i>, and <i>Carex canescens ssp. disjuncta</i> are the spring dominants. By late summer, <i>Zizania aquatica</i> and <i>Eryngium aquaticum var. aquaticum</i> are the aspect dominants. Other noteworthy herbaceous species include <i>Cladium mariscoides, Rhynchospora glomerata, Nymphaea odorata, Pogonia ophioglossoides, Eriocaulon decangulare var. decangulare, Coreopsis falcata, Asclepias lanceolata</i>, and <i>Physostegia leptophylla</i>.
Comm #4714	Saccharum spp. - Panicum verrucosum - (Rhexia spp., Sabatia spp.) Marsh » more details accession code: urn:lsid:vegbank.org:commConcept:33530-{C7BEE21F-928F-40F8-BB44-83A0DE42A02F}	NatureServe Biotics 2019	1	This vegetation occupies isolated upland depressions in the Coastal Plain of south-central and southwestern Georgia and Alabama. Examples are not connected to surface flow, but are poorly drained. These habitats are classically found on Grady soils, and are called "Grady Ponds," a term whose exact application is uncertain. They appear to be floristically and geomorphologically distinct from both Carolina bays and Georgia limesink ponds. Examples contain <i>Panicum verrucosum, Scirpus cyperinus, Rhexia mariana, Rhexia virginica, Rhynchospora</i> spp., and <i>Carex glaucescens</i>. Additional taxa seen include <i>Hypericum</i> sp., <i>Ludwigia</i> sp., <i>Mecardonia acuminata, Sabatia angularis, Lachnanthes caroliana, Hypericum denticulatum, Viola x primulifolia, Dichanthelium</i> sp., <i>Euthamia</i> sp., <i>Eupatorium capillifolium, Eupatorium compositifolium, Pluchea camphorata, Drosera intermedia</i>, and <i>Ludwigia linifolia</i>?.
Comm #4715	Quercus muehlenbergii - Juglans major - (Ulmus rubra) / Verbesina virginica Forest » more details accession code: urn:lsid:vegbank.org:commConcept:33696-{6E4D34E5-EBEE-4C1B-857A-18A149788004}	NatureServe Biotics 2019	1	This association occurs on mesic limestone slopes in the Edwards Plateau of Texas. <i>Quercus muehlenbergii</i> dominates the canopy; other canopy species may include <i>Quercus buckleyi, Carya illinoinensis, Juglans major, Fraxinus albicans, Tilia americana, Ulmus crassifolia</i>, and <i>Ulmus rubra</i>. Subcanopy species may include <i>Morus microphylla</i> and <i>Juniperus ashei</i>. A diversity of shrubs and woody vines may include <i>Garrya ovata ssp. lindheimeri, Aesculus pavia, Frangula caroliniana, Ilex decidua, Viburnum rufidulum, Cornus drummondii</i>, and <i>Parthenocissus quinquefolia</i>. Herbaceous species include <i>Carex edwardsiana, Carex planostachys, Galium texense, Brickellia cylindracea, Desmodium paniculatum, Geum canadense, Verbesina virginica var. virginica, Adiantum capillus-veneris, Tripsacum dactyloides, Packera obovata, Chaetopappa effusa</i> (within its range), and <i>Elymus</i> spp.
Comm #4716	Acer saccharum - Pinus strobus / Acer pensylvanicum Forest » more details accession code: urn:lsid:vegbank.org:commConcept:33773-{A021A7BF-8828-47EF-BF4A-CB35F86490F3}	NatureServe Biotics 2019	1	This dry white pine - northern hardwood forest occurs widely throughout the upper midwestern and northeastern United States and eastern Canada. The typical environmental setting is well-drained, acidic, sandy or gravelly soil over glacial till, in general a less mesic setting than northern hardwoods lacking white pine. Stands are characterized by a closed canopy, sometimes with supercanopy pine, patchy (but overall fairly sparse) shrubs, and relatively sparse herb and bryoid strata. Canopy dominants are the northern hardwood species <i>Acer saccharum, Betula alleghaniensis</i>, and in the Northeast <i>Fagus grandifolia</i>, with <i>Pinus strobus</i>, the pine often occurring as a supercanopy. Minor canopy associates may include <i>Tsuga canadensis</i> and <i>Quercus rubra</i>. In the Northeast at the northern edge of the range, <i>Abies balsamea, Picea rubens</i> and <i>Thuja occidentalis</i> may also occur sparingly. The subcanopy is dominated by <i>Acer pensylvanicum</i>. The herbaceous layer is characterized by <i>Trientalis borealis, Maianthemum canadense, Pteridium aquilinum, Oryzopsis asperifolia</i>, intermixed with the dwarf-shrubs <i>Gaultheria procumbens, Vaccinium angustifolium</i> and <i>Gaylussacia baccata</i>. Bryophytes include <i>Polytrichum commune, Pleurozium schreberi, Bazzania trilobata</i>, or <i>Hypnum imponens</i>. Distribution in Michigan needs further checking.
Comm #4717	Rhynchospora capitellata - Rhexia virginica - Rhynchospora scirpoides - Schoenoplectiella hallii Marsh » more details accession code: urn:lsid:vegbank.org:commConcept:33873-{2D0CAB85-F926-4871-B71C-730B83677DF6}	NatureServe Biotics 2019	1	This inland Coastal Plain marsh community is found in the Great Lakes region. Stands occur on sandy pitted outwash plains and glacial lakeplains. The level topography of these plains produces gently sloping, shallow basins with no outlets and sometimes no inlets. The water table fluctuates seasonally and yearly. It is highest in late winter and spring, and during years of high precipitation. The soils in this community are derived mainly from nutrient-poor to circumneutral, acidic (pH 4.4-7.0) sands. These conditions inhibit microbial decomposition and considerable organic material accumulates as peat. The peat mixes with sand or forms more-or-less pure deposits. The vegetation is dominated by herbaceous, mostly graminoid, species. Many of these species are annual or otherwise short-lived plants. They persist for years in the seedbank until the hydrologic conditions are right for germination. Many of these seedbank plants are species significantly disjunct from their main range on the Atlantic Coastal Plain. This plant community typically forms a distinct zonation in concentric bands: open water (when present); shallow water to recently emerged shore dominated by annual plant species and emergents; moist meadow typically dominated by <i>Calamagrostis canadensis</i> and sometimes <i>Cladium mariscoides, Rhynchospora capitellata, Carex scoparia</i>, etc.; and shrub tree margin (when present), often with <i>Acer rubrum, Nyssa sylvatica, Quercus palustris, Aronia melanocarpa, Vaccinium corymbosum, Cornus</i> spp., <i>Cephalanthus occidentalis</i>. Common indicator species, such as <i>Symphyotrichum dumosum, Eleocharis melanocarpa, Fuirena squarrosa, Lycopodiella appressa, Dichanthelium spretum, Polygala cruciata, Rhynchospora scirpoides, Rhynchospora macrostachya, Rotala ramosior, Euthamia gymnospermoides, Scleria reticularis, Stachys hyssopifolia</i>, and <i>Triadenum virginicum</i>, are found on the northern Atlantic Coastal Plain, either disjunct or ranging west into the Lower Great Lakes region. About 48 species, including 11 indicators, are common components of this community; species include <i>Eriocaulon aquaticum, Fimbristylis autumnalis, Lipocarpha micrantha, Dichanthelium meridionale, Rhexia virginica, Schoenoplectiella smithii, Viola lanceolata</i>, and <i>Xyris difformis</i>.
Comm #4718	Typha spp. - Schoenoplectus tabernaemontani - Mixed Herbs Southern Great Lakes Shore Marsh » more details accession code: urn:lsid:vegbank.org:commConcept:33877-{6F9657E5-908D-4C0E-964E-250EE42FD4D3}	NatureServe Biotics 2019	1	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</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, Nymphaea odorata, Potamogeton gramineus, Sagittaria latifolia</i>, and <i>Spirodela polyrrhiza</i>.
Comm #4719	Calamagrostis canadensis - Carex viridula - Cladium mariscoides - Lobelia kalmii Fen » more details accession code: urn:lsid:vegbank.org:commConcept:33880-{923F3A32-DB8D-40AD-927F-8BFEB22F538C}	NatureServe Biotics 2019	1	This community is typically found on marly coastal sites in northern Lake Michigan, Lake Huron, and Lake Superior in the United States. These sites occupy embayments of open, sandy shorelines where limestone bedrock or cobble is at or near the surface. These sites have calcareous soils (with a pH as high as 8.2), resulting either from calcareous substrates, waterflow off adjacent limestone bedrock or limestone-rich till, or algal precipitation of calcium carbonate in the relatively warm, carbonate-saturated waters. These "marly flats" contain a rich assemblage of calciphilic plants. Herbaceous species dominate parts of these areas. The dominant graminoid is <i>Calamagrostis canadensis</i>, but <i>Carex viridula</i> and <i>Lobelia kalmii</i> are key diagnostics of this type. Other diagnostic species include <i>Cladium mariscoides, Hypericum kalmianum, Dichanthelium acuminatum var. lindheimeri, Argentina anserina</i>, and <i>Triglochin maritima</i>. Scattered shrubs, such as <i>Dasiphora fruticosa ssp. floribunda</i> or <i>Myrica gale</i> may be present, but shrub cover is less than 25%. In Wisconsin, in coastal estuaries of Lake Superior, common associates include <i>Cladium mariscoides, Carex livida</i>, and <i>Triglochin maritima</i>. <i>Carex exilis</i> is codominant at several sites. On Isle Royale, sedges dominate the vegetation. <i>Cladium mariscoides</i> is most abundant; other common herbs include <i>Carex lacustris, Rhynchospora alba</i>, and <i>Utricularia intermedia</i>. <i>Myrica gale</i> is the most abundant shrub. <i>Sphagnum</i> spp. form an incomplete cover.
Comm #4720	Thuja occidentalis - (Myrica gale) / Trichophorum alpinum / Drepanocladus spp. Fen » more details accession code: urn:lsid:vegbank.org:commConcept:33957-{E4BAA62A-751E-4415-A5F0-DEB377FFB630}	NatureServe Biotics 2019	1	This white-cedar scrub fen type is found in southern Ontario, Canada, and possibly in adjacent northern areas of the Great Lakes states in the United States. Stands contain at least 40 cm or more of brown moss or sedge peat. Stands are rarely flooded, primarily saturated, and the pH is slightly alkaline to mildly acidic. The vegetation contains a scrub layer between 1 and 2 m tall dominated by <i>Thuja occidentalis</i>, with occasional <i>Myrica gale</i>. The ground layer contains a rich diversity of herbs and mosses, including <i>Trichophorum alpinum</i> and <i>Drepanocladus</i> spp.