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Description |
Comm #3061
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Spartina patens - Fimbristylis (caroliniana, castanea) - (Panicum virgatum) Marsh
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accession code: urn:lsid:vegbank.org:commConcept:36023-{5B28750C-0ED4-48A7-BF8F-3914BBB8CBA7}
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NatureServe Biotics 2019 |
3
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This non-tidal maritime grassland occurs in seasonally and periodically flooded to saturated interdune swales on barrier islands and the Ingleside barrier-strandplain in the Coastal Bend of Texas. It may also occur in Louisiana and Tamaulipas, Mexico. Dominant herbs can include <i>Spartina patens, Panicum virgatum, Fimbristylis caroliniana, Fimbristylis castanea</i>, and <i>Hydrocotyle bonariensis</i>. Other species include <i>Paspalum monostachyum, Andropogon glomeratus, Andropogon virginicus, Centella erecta, Rhynchospora colorata, Eragrostis</i> sp., <i>Juncus</i> sp., <i>Phyla nodiflora, Pluchea foetida, Rhynchospora</i> spp., and <i>Samolus ebracteatus</i>. On the Ingleside barrier-strandplain along the Coastal Bend of Texas, some occurrences lack <i>Spartina patens</i> and are dominated by <i>Panicum virgatum</i>. A sparse shrub layer dominated by <i>Morella cerifera</i> is sometimes present. |
Comm #3062
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Quercus laurifolia - Liquidambar styraciflua - Nyssa biflora - Acer rubrum / Sabal minor Floodplain Forest
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accession code: urn:lsid:vegbank.org:commConcept:35991-{84092006-A7FE-44DE-8252-10B5BDD1EB9B}
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NatureServe Biotics 2019 |
3
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This forest occurs in active floodplains and in relict stream sloughs in the outer portions of the West Gulf Coastal Plain; this region is sometimes considered the pine flatwoods part of the region. Dominant canopy species are typically <i>Quercus laurifolia, Liquidambar styraciflua, Nyssa biflora</i>, and <i>Acer rubrum</i>. It also appears to occur on flats in a pine flatwood landscape. <i>Sabal minor</i> can be common in the shrub layer. |
Comm #3063
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Cyrilla racemiflora / Xyris fimbriata - Utricularia purpurea - Lycopodiella alopecuroides Wet Scrub
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accession code: urn:lsid:vegbank.org:commConcept:36016-{1699B501-91F2-4996-BA5C-93A783D23A09}
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NatureServe Biotics 2019 |
3
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This shrubland community occurs in seasonally flooded natural depression ponds in the Outer Coastal Plain of South Carolina, occurring in a pine flatwood landscape. <i>Cyrilla racemiflora</i> is the only shrub present through most of the ponds and covers as much as 70% of the pond's area. Scattered, stunted <i>Nyssa biflora</i> may also occur. Prior to seasonal drawdown, these ponds are flooded 6-9 dm deep, and aquatics such as <i>Utricularia purpurea</i> and emergent herbs such as <i>Xyris fimbriata</i> characterize the herbaceous stratum. Following drawdown, the exposed pond bottom may have species such as <i>Lycopodiella alopecuroides, Carex</i> spp., and <i>Juncus</i> sp. Steep rims of the ponds are rimmed with <i>Chamaedaphne calyculata, Gordonia lasianthus, Lyonia lucida</i>, and <i>Smilax laurifolia</i>. These ponds are known from the vicinity of Lewis Ocean Bay Preserve, Horry County, South Carolina. |
Comm #3064
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Fagus grandifolia - Liquidambar styraciflua - Quercus (michauxii, nigra) Forest
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accession code: urn:lsid:vegbank.org:commConcept:36051-{06F7D46F-24D4-4C01-98F6-E3216109B5FC}
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NatureServe Biotics 2019 |
3
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This levee or terrace forest of the Atlantic Coastal Plain is dominated by <i>Fagus grandifolia</i>, with <i>Liquidambar styraciflua</i> and some combination of the nominal <i>Quercus</i> spp. (<i>Quercus michauxii, Quercus nigra</i>) often codominating. Although they may be present, <i>Liriodendron tulipifera</i> and <i>Betula nigra</i> are usually not dominants in this community. <i>Ilex opaca var. opaca</i> is a prominent component of the subcanopy. Shrubs present include <i>Leucothoe axillaris, Symplocos tinctoria</i>, and <i>Vaccinium elliottii</i>. Vines are prominent in examples of this association; these include <i>Berchemia scandens, Gelsemium sempervirens, Smilax laurifolia, Toxicodendron radicans</i>, and <i>Vitis rotundifolia</i>. Scattered patches of <i>Arundinaria gigantea</i> may occur in examples of this community. Herbaceous species common in this association include <i>Carex</i> spp. and <i>Mitchella repens</i>. |
Comm #3065
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Schoenoplectus americanus - (Spartina patens) - Typha spp. Salt Marsh
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accession code: urn:lsid:vegbank.org:commConcept:36537-{DBB1F070-4CD5-45B2-B858-D7B4111BA8F8}
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NatureServe Biotics 2019 |
3
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This association includes tidal, mesohaline to oligohaline marshes dominated or codominated by <i>Schoenoplectus americanus</i>. Other associated species can include <i>Spartina patens, Juncus roemerianus</i>, and <i>Typha domingensis</i>. The general aspect and species composition of this vegetation are variable, not only among occurrences, but also over the course of the growing season. Dominance patterns are not well understood but are likely related to gradients in salinity and hydrology. This association is known from the Gulf Coast of Texas and Louisiana; it may also occur along the Gulf Coast of Mississippi and Alabama. This vegetation may grade down into vegetation dominated by <i>Spartina patens, Distichlis spicata, Juncus roemerianus</i> or <i>Spartina alterniflora</i>, and up into shrub-dominated zones or saline prairie. The woody shrub component of this zone is diminished by storm tides, as well as the effects of fire. More information is needed on this vegetation type. This vegetation is found in the marshes of the Chenier Plain of Louisiana and upper and mid Texas coast where it may be interspersed with ~<i>Spartina patens - Schoenoplectus (americanus, pungens) - (Distichlis spicata)</i> Salt Marsh (CEGL004755)$$ and ~<i>Spartina alterniflora - Distichlis spicata - Spartina patens</i> Mesohaline Salt Marsh (CEGL002230)$$. It differs from ~<i>Spartina patens - Schoenoplectus (americanus, pungens) - (Distichlis spicata)</i> Salt Marsh (CEGL004755)$$ by the dominance or codominance of <i>Schoenoplectus americanus</i>. |
Comm #3066
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Minuartia groenlandica - Paronychia argyrocoma - Saxifraga michauxii Outcrop Barrens
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accession code: urn:lsid:vegbank.org:commConcept:36570-{CF9649C8-9BC7-45F8-9E9B-D68B9D37AB98}
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NatureServe Biotics 2019 |
3
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This community is known from only two sites in the Virginia Blue Ridge. The type occupies open, convex, rocky summits at elevations of about 1200 m (3950 feet) on Buffalo Mountain and 1170 m (3850 feet) on Spy Rock. The moisture regime of these sites is xeric, and soil development is limited to shallow accumulations of disintegrated rock and humus. The community is characterized by herbaceous vegetation with very low species richness. A few small (<0.5 m tall) individuals of <i>Kalmia latifolia, Rhododendron catawbiense</i>, and <i>Vaccinium pallidum</i> are present, contributing <1% cover. Total herbaceous cover varies from 5-40%, with plants rooting in crevices, moss, and thin soil deposits. <i>Minuartia groenlandica</i> and <i>Paronychia argyrocoma</i> form locally abundant mats or cushions. |
Comm #3067
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Kalmia latifolia - Vaccinium pallidum Shrubland
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accession code: urn:lsid:vegbank.org:commConcept:36594-{777C1802-45D5-4CD2-925E-30A7DA18599E}
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NatureServe Biotics 2019 |
3
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Comm #3068
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Quercus chrysolepis - Umbellularia californica Forest
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accession code: urn:lsid:vegbank.org:commConcept:36652-{803A7AAB-C901-46EB-ACB4-0E5C606FCD8F}
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NatureServe Biotics 2019 |
3
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This forest association is currently only known from Point Reyes National Seashore and Yosemite National Park in California, and the following description is based on occurrences there. Additional global information will be added as it becomes available. Stands at Point Reyes are found at among the highest elevations (585-746 m [1920-2447 feet]) of sampled vegetation plots. They occur on the upper third of 13-34°, north-facing slopes. Soil textures range from medium to very fine sandy loam to coarse loamy sand. A high percentage (95-99%) of litter is found under the forest canopy and gravel makes up 20-65% of the topsoil. These stands generally occur on shallow rocky soil and may be immediately adjacent to ~<i>Arctostaphylos glandulosa - Quercus wislizeni</i> Shrubland (CEGL003180)$$, the chaparral on south-facing slopes on the opposite side of the ridges. Locally these stands have probably the coolest average winter temperatures and are usually above the influence of the summer marine layer. They are thus probably the most interior and continental of any forest association at Point Reyes. Stands at Yosemite are found at low to mid elevations (488-1615m [1600-5300 feet]) on the low to upper portions of slopes of all aspects. This association is found on somewhat steep to very steep (20-65°) rocky slopes. Soils tend to be rocky and well-drained with textures ranging from rocky to silty loam of granitic, metamorphic and igneous parent material. Soil depths are shallow to moderately deep. These sites generally experience low to moderate disturbance. Similar stands occur south to Sequoia National Park on moderate to steep slopes below 1675 m (5500 feet) elevation.<br /><br />Stands at Point Reyes form an open herb layer, an open shrub layer and a continuous tree layer. This association is dominated by an intermittent to continuous layer of <i>Umbellularia californica</i>. <i>Quercus chrysolepis</i> is also present and sometimes may have a higher percent cover than <i>Umbellularia californica</i>. <i>Elymus glaucus, Pseudotsuga menziesii</i>, and <i>Iris</i> sp. are usually present and <i>Corylus cornuta, Rosa gymnocarpa, Toxicodendron diversilobum, Carex</i> sp., <i>Polystichum munitum, Quercus agrifolia</i>, and a variety of other understory species may also be present. On slightly deeper soils, at lower slope positions, and on similar aspects this association often occurs adjacent to stands of the <i>Pseudotsuga menziesii</i> alliances. At Yosemite, stands form a moderately dense forest dominated by <i>Quercus chrysolepis</i> in the overstory and <i>Umbellularia californica</i> in the understory tree layer, although <i>Umbellularia californica</i> is less abundant. In some stands, <i>Quercus kelloggii</i> may be common (usually mid-elevations around 1220-1525 m [4000-5000 feet]). <i>Toxicodendron diversilobum</i> can be common in the shrub layer, and <i>Dryopteris arguta</i> can be common in the herb layer of some sites. A variety of other species is also found in this association, including <i>Aesculus californica, Quercus kelloggii, Pseudotsuga menziesii, Melica californica, Vulpia microstachys, Bromus tectorum, Selaginella hansenii</i>, and moss. |
Comm #3069
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Quercus kelloggii / Arctostaphylos mewukka - Chamaebatia foliolosa Forest
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accession code: urn:lsid:vegbank.org:commConcept:36667-{EB5CAD5A-24EE-421E-9558-277D43CA5035}
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NatureServe Biotics 2019 |
3
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This forest association is currently only known from Yosemite National Park in California, and the following description is based on occurrences there. Additional information will be added as it becomes available. Stands of this forest are found at low elevations (1160-1370 m [3800-4500 feet]) on the upper portions of southeast- to west-facing, moderately steep to somewhat steep (6-25°) slopes of canyons and ridges. Landform is variable; sites are located on linear, convex and undulating slopes, ridges, and canyons. Soil textures range from loamy sand to silt loam and of granitic parent material. Soils are moderately well-drained to well-drained. Litter is high with 75-80% cover. Stands of this forest form a three-story structure. The open to intermittent tree layer is dominated by <i>Quercus kelloggii</i>. <i>Calocedrus decurrens, Pinus ponderosa</i>, and <i>Pinus attenuata</i> are sometimes found contributing minor cover in the tree layer. <i>Chamaebatia foliolosa</i> and <i>Arctostaphylos mewukka</i> are dominant in the open to intermittent shrub layer. <i>Arctostaphylos viscida</i> is often present. <i>Adenostoma fasciculatum</i> is occasionally found in this association as well. <i>Galium bolanderi</i> and moss are usually found in the open to intermittent herb layer. A large variety of other species are also found in this association, contributing little cover in the understory, including <i>Agoseris grandiflora, Poa secunda, Toxicodendron diversilobum, Lathyrus sulphureus, Vulpia microstachys, Ceanothus integerrimus, Ceanothus cuneatus</i>, and <i>Comandra umbellata ssp. californica</i>. |
Comm #3070
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Populus balsamifera ssp. trichocarpa - Pinus jeffreyi Riparian Forest
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accession code: urn:lsid:vegbank.org:commConcept:36668-{0229D80B-1562-4AD7-A5A5-3B6DA96C9523}
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NatureServe Biotics 2019 |
3
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This forest association is currently only known from Yosemite National Park in California, and the following description is based on occurrences there. Additional information will be added as it becomes available. This forest grows between 2100 and 2370 m (6900-7780 feet) elevation on gentle to moderate slopes with southerly to southeasterly exposures. Stands are found in valley bottoms along streams, or occasionally midslopes with soils that are seasonally or permanently flooded. Soils are sands to silty loams derived from igneous rock and may be moderately well-drained to well-drained. This forest is characterized by a broken tall canopy of <i>Pinus jeffreyi</i> that may reach 35-50 m, but is more regularly 15-20 m tall. Dominance is shared between <i>Populus balsamifera</i> and <i>Pinus jeffreyi</i> in a fairly continuous canopy. <i>Populus tremuloides</i> is also regularly present. Individuals of <i>Abies lowiana</i> are also present, and <i>Juniperus occidentalis</i> may also be present in low cover. Occasionally <i>Pinus jeffreyi</i> may also be present as trees or saplings. The shrub layer is dominated by <i>Rosa woodsii</i> along with <i>Artemisia tridentata</i> and /or <i>Symphoricarpos rotundifolius</i>. The ground layer is dominated by graminoids. Most stands contain <i>Poa pratensis</i> and <i>Elymus elymoides</i>. The herbaceous layer is sparse but relatively diverse. <i>Wyethia mollis, Allium bisceptrum, Calochortus superbus, Iris missouriensis</i>, and/or <i>Maianthemum stellatum</i> all occur at low cover. |
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