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Name
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Reference
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Plots↓
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Description |
Comm #1951
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Hypericum fasciculatum / Rhynchospora (chapmanii, harperi) Wet Shrubland
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accession code: urn:lsid:vegbank.org:commConcept:32727-{D7C864B0-BE8C-4A61-B935-77C7C437A0B0}
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NatureServe Biotics 2019 |
7
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Wet prairies and depressional wetlands dominated by the needle-leaved <i>Hypericum fasciculatum</i>. <i>Rhynchospora chapmanii</i> and <i>Rhynchospora harperi</i> are frequent associates. Other species present in southern Florida examples (Okeechobee County) include <i>Proserpinaca pectinata, Gratiola</i> sp., <i>Pluchea</i> sp., <i>Rhynchospora inundata, Rhynchospora</i> spp., <i>Lachnanthes caroliana</i>, and <i>Oxypolis filiformis</i>. |
Comm #1952
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Smilax auriculata - Toxicodendron radicans Vine-Shrubland
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accession code: urn:lsid:vegbank.org:commConcept:32743-{9372F9A0-7F62-4213-9222-BF748DB394E2}
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NatureServe Biotics 2019 |
7
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This association consists of vine-covered maritime sand dunes in the Mid-Atlantic Coastal Plain, generally dominated by <i>Smilax auriculata</i> and <i>Toxicodendron radicans</i>. These dense vines cover the crests of dunes exposed to salt spray and winds. The dominant species of any single dune may be variable, possibly including <i>Smilax auriculata</i> and <i>Toxicodendron radicans</i>, but also including other <i>Smilax</i> spp., <i>Vitis rotundifolia</i>, or <i>Parthenocissus quinquefolia</i>. In some cases, the vines are low-growing and occur directly on the sand surface, but in other cases, the vegetation has a height of 1 m or more, with younger vines growing over older stems of the same species, or over other shrubs. The vegetation is generally low to the ground (less than 5 dm (1.5 feet) tall) and generally covers 70-80% of the ground surface with the remainder being exposed sand. |
Comm #1953
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Saxifraga michauxii Acidic Outcrop Barrens
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accession code: urn:lsid:vegbank.org:commConcept:33310-{0A022968-8CB1-4254-BEDB-750191CADBC4}
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NatureServe Biotics 2019 |
7
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This is a broadly defined type which encompasses a diversity of sloping rock outcrops at low to medium elevations in the Southern and Central Appalachians, with <i>Saxifraga michauxii</i> as a characteristic component. Other species are variable, but may include <i>Saxifraga virginiensis, Saxifraga micranthidifolia, Carex</i> spp., <i>Schizachyrium scoparium</i>, and others. This community shows some relationship to the others in this alliance, ~<i>Saxifraga michauxii - Carex misera - Schizachyrium scoparium</i> Rocky Grassland Alliance (A1621)$$, but it lacks most or all of the rare endemic species which are important components of the other types. |
Comm #1954
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Pinus taeda - Acer rubrum - Liquidambar styraciflua / Arundinaria tecta Ruderal Wet Forest
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accession code: urn:lsid:vegbank.org:commConcept:33432-{A4CE2EF5-EEB9-4EF5-8D0C-8FA003FFC99E}
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NatureServe Biotics 2019 |
7
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This community is extensively distributed in the northern portion of the Great Dismal Swamp, on the margins of large peat domes, where peat feathers out into mineral soil. The type is a young, successional type which has probably replaced both hydrophytic oak forests and nearly treeless canebrakes following extensive cutting, fire suppression, and hydrologic alteration. Hydrology is saturated by permanently high water tables, with occasional shallow surface ponding during extended wet periods. Soils range from loamy sands to silty clay loams, with or without an organic mantle up to 30 cm deep. <i>Pinus taeda, Acer rubrum var. trilobum</i>, and <i>Liquidambar styraciflua</i> dominate the canopy in various combinations and proportions. The sparse subcanopy can include <i>Acer rubrum, Liquidambar styraciflua, Nyssa sylvatica, Fraxinus pennsylvanica, Magnolia virginiana, Quercus laurifolia, Quercus nigra, Quercus michauxii</i>, and <i>Quercus alba</i>. <i>Arundinaria tecta</i> occurs in dense (or sometimes patchy) stands. Other shrubs include <i>Clethra alnifolia, Vaccinium formosum, Vaccinium fuscatum, Smilax rotundifolia, Smilax glauca, Ilex opaca, Ilex glabra, Morella cerifera, Persea palustris, Eubotrys racemosa</i>, and <i>Toxicodendron radicans ssp. radicans</i>. Locally, <i>Lyonia lucida</i> and <i>Asimina triloba</i> may occur, as well. Herbaceous species are sparse to essentially lacking, but can include <i>Woodwardia areolata, Woodwardia virginica, Osmunda cinnamomea</i>, and <i>Osmunda regalis var. spectabilis</i>. |
Comm #1955
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Potamogeton spp. - Ceratophyllum spp. - Elodea spp. Aquatic Vegetation
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accession code: urn:lsid:vegbank.org:commConcept:33504-{E1582ACA-549C-4005-914C-83BBC1B9B1C4}
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NatureServe Biotics 2019 |
7
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This broadly defined type represents vegetation dominated by various floating-leaved and submerged aquatic species (including <i>Potamogeton</i> spp., <i>Ceratophyllum</i> spp., <i>Utricularia</i> spp., and <i>Elodea</i> spp.) from the Cumberlands across to the Atlantic and Gulf coastal plains. Individual stands are typically species-poor and may be dominated by a single species, this leading to any number of apparent dominance types. Until the patterns are better understood, these are all grouped together here. |
Comm #1956
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Rubus (argutus, trivialis) - Smilax (glauca, rotundifolia) Ruderal Shrubland
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accession code: urn:lsid:vegbank.org:commConcept:33510-{511DCA8E-4332-4131-AE93-3EB0FA5A2C72}
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NatureServe Biotics 2019 |
7
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Stands of this successional community develop following disturbance (complete forest canopy removal). These stands are dominated by blackberries/dewberries (<i>Rubus argutus, Rubus trivialis</i>) and by greenbrier species (<i>Smilax glauca, Smilax rotundifolia</i>). Many examples include a great variety of tree saplings and other woody species (<i>Quercus</i> spp., <i>Liquidambar styraciflua, Acer rubrum, Diospyros virginiana, Juniperus virginiana var. virginiana, Rhus copallinum</i>), herbs (<i>Solidago</i> spp., Asteraceae spp., <i>Helianthus</i> spp., <i>Hypericum</i> spp., <i>Potentilla simplex</i>), and grasses (<i>Andropogon</i> spp., <i>Dichanthelium</i> spp., <i>Panicum</i> spp., <i>Schizachyrium scoparium, Lolium</i> spp., and <i>Sorghastrum nutans</i>). Communities that are surrounded by relatively intact ecosystems will tend to have more native species. In the Southern Blue Ridge, at intermediate elevations, <i>Rubus allegheniensis</i> may be a component. Those surrounded by old fields or fragmented by development tend to have <i>Lonicera japonica</i> and/or <i>Rosa multiflora</i> as a codominant vine overtopping much of the blackberry and greenbrier. |
Comm #1957
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Morella cerifera - Prunus caroliniana - Zanthoxylum clava-herculis Shrubland
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accession code: urn:lsid:vegbank.org:commConcept:33561-{D88159C3-4684-4A3C-B2EC-57E2FA9053A2}
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NatureServe Biotics 2019 |
7
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These maritime shrublands of South Carolina and Georgia are dominated by <i>Morella cerifera, Prunus caroliniana</i>, and <i>Zanthoxylum clava-herculis</i>. This shrub vegetation occurs on the backside of maritime dunes. |
Comm #1958
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Selaginella rupestris - Croton michauxii var. ellipticus - Cheilanthes tomentosa - (Allium cuthbertii) Granitic Glade Vegetation
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accession code: urn:lsid:vegbank.org:commConcept:33760-{9DE0CB88-6EBA-4DB2-9025-266BD0D564DA}
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NatureServe Biotics 2019 |
7
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This community includes vegetation of North Carolina's upper Piedmont, on gently to moderately sloping, low-elevation outcrops, with irregular or undulating surfaces but few crevices, and containing plants characteristic of higher pH conditions. This community occurs as small patches (approx. 5-20 acres) in the Brushy Mountains of North Carolina at elevations below 1220 m (4000 feet). Vegetation consists of shallow mats dominated by <i>Selaginella rupestris</i> and deeper grassy mats, interspersed with areas of smooth rock or rock with few crevices or fractures. This community has few deep-rooted forbs, shrubs, or trees. The flora is diverse and characterized by the presence of plants indicative of higher pH soils. Woody species may be scattered, rooted in crevices or in marginal zones between exposed rock and adjacent forests. This association is distinguished by a suite of distinctive plant species, including <i>Croton michauxii var. ellipticus, Allium cuthbertii, Cheilanthes tomentosa, Coreopsis pubescens, Hypericum denticulatum</i> (actually an unnamed taxon), <i>Senna marilandica</i>, and <i>Diodia teres</i>. This community often grades into woodlands dominated by <i>Juniperus virginiana</i> and deciduous trees (<i>Quercus montana, Carya</i> spp., <i>Fraxinus</i> spp.) [see <i>~Carya (glabra, tomentosa) - Fraxinus americana - (Juniperus virginiana)</i> Woodland (CEGL003752)$$]. |
Comm #1959
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Pinus strobus - Acer rubrum / Spiraea alba var. latifolia / Sanguisorba canadensis Woodland
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accession code: urn:lsid:vegbank.org:commConcept:33762-{6FF47382-80FC-4904-8E0E-1EECDF07238F}
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NatureServe Biotics 2019 |
7
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This mixed woodland occupies mafic seepage wetlands of the Southern Blue Ridge plateau in Virginia and possibly North Carolina. Dominant trees are <i>Acer rubrum, Pinus strobus</i>, and less frequently <i>Pinus rigida</i> in open (25-60% canopy cover) stands. The subcanopy of well-developed or mature stands is primarily <i>Acer rubrum</i>. Shrub layers are moderately dense to dense (40-80% cover); characteristic shrubs include <i>Spiraea alba var. latifolia, Alnus serrulata, Kalmia latifolia, Vaccinium corymbosum, Physocarpus opulifolius, Rhododendron viscosum, Lyonia ligustrina</i>, and <i>Spiraea tomentosa</i>. Herbaceous cover is variable and includes a number of species indicative if mafic conditions, particularly <i>Sanguisorba canadensis, Viola walteri, Helenium brevifolium</i>, and a narrow-leaved, apparently undescribed, <i>Aster</i> taxon related to <i>Symphyotrichum puniceum</i>. Other typical herbs include <i>Osmunda regalis var. spectabilis, Osmunda cinnamomea, Solidago uliginosa, Oxypolis rigidior, Thalictrum pubescens, Pycnanthemum tenuifolium, Viola cucullata, Rubus hispidus</i>, and <i>Scirpus expansus</i>. |
Comm #1960
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Equisetum fluviatile - (Eleocharis palustris) Marsh
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accession code: urn:lsid:vegbank.org:commConcept:34021-{0655370D-04AB-4608-840C-C12642E886C8}
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NatureServe Biotics 2019 |
7
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This low graminoid marsh community is found in the subboreal regions of the Great Lakes and perhaps more widely in eastern Canada. Stands occur in wave-washed shores, sandbars, and stream channels. Substrate is mineral soil (often sand), sometimes held together by root mats. The water regime is permanently flooded to intermittently exposed, and water depth is generally less than 1 m. A layer of partially decomposed stalks may be present. Emergent cover is greater than 25%, and floating-leaved and submergent cover is low. Emergents <1 m high dominate the stands, including <i>Equisetum fluviatile</i> and/or <i>Eleocharis palustris</i>. Associated species of low constancy include <i>Glyceria borealis, Isoetes tenella, Potamogeton gramineus</i>, and <i>Utricularia macrorhiza</i>. |
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