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Name
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Reference
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Plots↓
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Description |
Comm #2161
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Populus deltoides / Juniperus scopulorum Floodplain Woodland
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accession code: urn:lsid:vegbank.org:commConcept:31061-{26862704-0DED-4FBB-AFAD-E12B8B2AAD9D}
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NatureServe Biotics 2019 |
6
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This cottonwood community is found in riparian areas of the northwestern Great Plains. Stands occur on broad, flat floodplain terraces of rivers and streams. Soils vary from silty loams to sandy alluvial deposits. The vegetation consists of an open-canopied tree layer. The dominant species is mature <i>Populus deltoides</i>. <i>Juniperus scopulorum, Juniperus virginiana</i>, or a hybrid, may contribute significant cover to both tree and sapling layer. <i>Fraxinus pennsylvanica</i> may be present as small trees, or, more commonly, as saplings. <i>Populus deltoides</i> reproduction is very limited. This community is a seral stage which, without significant disturbance, will eventually change into a <i>Fraxinus pennsylvanica</i>-dominated system. It may represent an invasive stage in ~<i>Populus deltoides - Fraxinus pennsylvanica</i> Floodplain Forest (CEGL000658)$$, where <i>Juniperus</i> invades in the absence of a natural flooding regime. The shrub layer of this community is composed chiefly of <i>Rosa woodsii, Symphoricarpos occidentalis</i>, and small <i>Juniperus scopulorum</i>. The herbaceous stratum typically contains <i>Elymus canadensis, Melilotus officinalis</i>, and <i>Thalictrum dasycarpum</i>. |
Comm #2162
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Carex lasiocarpa - Carex oligosperma / Sphagnum spp. Acidic Peatland
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accession code: urn:lsid:vegbank.org:commConcept:31174-{1EFC3F6E-AD7E-4FEC-8501-D067D0708C80}
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NatureServe Biotics 2019 |
6
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This graminoid poor fen community is found in the Great Lakes region of the United States and Canada, as well as elsewhere in central Canada. Stands are found in peatlands with low exposure to mineral-rich groundwater, including basin fens, shores above the level of seasonal flooding and larger peatlands. Water hydrology is saturated, and surface water is slightly acidic and nutrient poor. The vegetation is dominated by graminoids, with up to 25% shrub cover, and scattered trees. The dominant graminoid is <i>Carex lasiocarpa</i>, and typical associates include <i>Carex chordorrhiza, Carex limosa, Carex oligosperma, Rhynchospora alba, Trichophorum cespitosum</i>, and <i>Scheuchzeria palustris</i>. Forbs include <i>Arethusa bulbosa, Symphyotrichum boreale, Calopogon tuberosus, Pogonia ophioglossoides, Sarracenia purpurea</i>, and <i>Solidago uliginosa</i>. The low-shrub layer contains <i>Andromeda polifolia, Betula pumila, Chamaedaphne calyculata, Larix laricina, Salix discolor, Salix pedicellaris</i>, and <i>Vaccinium oxycoccos</i>. The moss layer is virtually continuous, and is dominated by <i>Sphagnum capillifolium, Sphagnum fuscum</i>, and <i>Sphagnum magellanicum</i>. Diagnostic features include the dominance of graminoids, particularly <i>Carex lasiocarpa</i>, the almost continuous layer of Sphagnum peat, and few minerotrophic indicators. |
Comm #2163
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Typha domingensis - Setaria magna Marsh
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accession code: urn:lsid:vegbank.org:commConcept:32982-{B67F33CD-B79D-4A7D-A370-35C8BC3F2A7F}
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NatureServe Biotics 2019 |
6
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This association occurs in wet parts of non-tidal interdune ponds with brackish water (from hurricane flooding, storm tides, or island overwash). In addition to the dominant <i>Typha domingensis</i>, other characteristic species include <i>Setaria magna</i> and <i>Cyperus</i> spp. |
Comm #2164
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Nymphaea odorata - Nuphar (microphylla, variegata) Aquatic Vegetation
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accession code: urn:lsid:vegbank.org:commConcept:31470-{D3C6EE3E-3091-4552-9712-E813CCEBB83F}
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NatureServe Biotics 2019 |
6
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This water-lily aquatic wetland type occurs throughout the upper midwestern region of the United States and adjacent Canada. Stands occur in open, slow-moving water on lakes and streams, often less than 0.5 m deep. The substrate is variable, from muck to sedimentary peat. Emergent vegetation cover is less than 25% and floating-leaved aquatics cover at least 25% of the surface. Typical dominants vary from stand to stand but include <i>Nymphaea odorata, Nuphar microphylla</i>, and <i>Nuphar variegata</i>. Other dominants may include <i>Brasenia schreberi</i> and <i>Potamogeton amplifolius</i>. A variety of emergent species can occur in this community. |
Comm #2165
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Populus deltoides / Carex pellita Floodplain Woodland
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accession code: urn:lsid:vegbank.org:commConcept:31557-{FE8CC457-85CF-4974-982E-94519A99DF77}
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NatureServe Biotics 2019 |
6
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This woodland plant association occurs sporadically on clayey soils along broad, braided channels in low-lying swales and overflow channels in the lower South Platte River of northeastern Colorado (Central Shortgrass Prairie, Ecoregion 27). It also occurs in Wyoming, and is likely to be found in Nebraska and Kansas. Mature <i>Populus deltoides</i> dominates the canopy, while <i>Carex pellita</i> forms a dense ground cover. Tree canopy may also include <i>Salix amygdaloides</i>. There is no consistent shrub canopy, though <i>Prunus virginiana, Celtis laevigata</i>, and <i>Parthenocissus quinquefolia</i> may be present. Other herbs include <i>Elymus lanceolatus, Bromus inermis, Muhlenbergia asperifolia</i>, and <i>Phalaris arundinacea</i>. This is a late-seral community, requiring first scouring floods for <i>Populus deltoides</i> establishment, then cessation of scouring floods for <i>Carex pellita</i> establishment. |
Comm #2166
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Gutierrezia sarothrae - (Opuntia spp.) / Pleuraphis jamesii Dwarf-shrubland
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accession code: urn:lsid:vegbank.org:commConcept:31598-{24F26B5E-CA4E-4DA0-A580-258F753E2FB8}
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NatureServe Biotics 2019 |
6
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This dwarf-shrubland is found in Utah and northern Arizona, mostly in the Colorado Plateau, but likely occurs more widely. This association is characterized by an open dwarf-shrub canopy (10-30% cover) that is dominated by <i>Gutierrezia sarothrae</i>, frequently with <i>Opuntia</i> spp. and an herbaceous layer with <i>Pleuraphis jamesii</i> present to abundant (1-30% cover). Some stands have a diverse woody layer that includes low cover of several shrub species and occasional <i>Pinus edulis</i> or <i>Juniperus osteosperma</i> trees. The herbaceous layer is typically dominated by graminoids with several species present in addition to <i>Pleuraphis jamesii</i>, including <i>Achnatherum hymenoides, Aristida purpurea, Bouteloua gracilis, Elymus elymoides, Hesperostipa comata</i>, or <i>Pascopyrum smithii</i>. There is usually only sparse cover of native forbs such as <i>Chamaesyce</i> spp. or <i>Sphaeralcea coccinea</i>. Introduced species such as <i>Bromus tectorum</i> or <i>Salsola kali</i> may dominate the herbaceous layer of some disturbed stands. Stands occur on level to moderately sloping hillslopes, plateaus and bluffs. Aspects are reported from the southeast, south and southwest. Soils are variable and range from sandy to clayey texture and may occur over gravel and cobbles or talus. Disturbance may be important in maintaining this vegetation community as some stands have been created by chaining of trees and improper grazing by livestock. |
Comm #2167
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Pinus edulis - Juniperus osteosperma / Arctostaphylos patula Woodland
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accession code: urn:lsid:vegbank.org:commConcept:31841-{C17E132E-5126-413E-B351-1F4CB192B199}
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NatureServe Biotics 2019 |
6
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This association is found on the Colorado Plateau of southern Utah on flat to gently sloping sites between 1707 and 2103 m (5600-6900 feet) elevation. Slope aspects tend toward western and southern, and parent materials are typically sandstone, although shale is possible. Soils are loamy sands, sandy loams, and clay loams and are rapidly drained. The unvegetated surface has moderate cover of bare soil and varying cover of cryptogams, litter, and small and large rocks. This woodland association has a short (2-10 m), open tree canopy (10-30% cover). <i>Pinus edulis</i> and <i>Juniperus osteosperma</i> are the most abundant tree species, each of which typically has from 5-25% cover. The shrub layer has moderate cover (5-30%) and can be fairly diverse. <i>Arctostaphylos patula</i> dominates the shrub layer with 5-30% cover. Other common shrubs include <i>Amelanchier utahensis, Cercocarpus intricatus, Eriogonum microthecum, Opuntia</i> spp., <i>Quercus gambelii</i>, and <i>Shepherdia rotundifolia</i>. The herbaceous layer has sparse to low cover and low to moderate species diversity. It may contain the graminoids <i>Achnatherum hymenoides, Muhlenbergia pungens</i>, and <i>Poa fendleriana</i> and the forbs <i>Comandra umbellata, Penstemon eatonii</i>, and <i>Lepidium montanum</i>. |
Comm #2168
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Aesculus californica / Toxicodendron diversilobum / Moss Association
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accession code: urn:lsid:vegbank.org/vegbranch:commConcept:28584-{5D5884D2-3B89-4C0D-8449-DA16B831AD0D}
NOT CURRENTLY ACCEPTED
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MCV2 |
6
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Comm #2169
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Ceanothus cuneatus / Plantago erecta Association
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accession code: urn:lsid:vegbank.org/vegbranch:commConcept:28654-{D7071A75-B3E0-42E0-B4A3-0FEDBDEDB06F}
NOT CURRENTLY ACCEPTED
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MCV2 |
6
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Comm #2170
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Fraxinus americana - Carya glabra / Symphoricarpos orbiculatus - Rhus aromatica / Piptochaetium avenaceum Woodland
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accession code: urn:lsid:vegbank.org:commConcept:32552-{82F811EA-E699-490D-82F0-B644DFF963CE}
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NatureServe Biotics 2019 |
6
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Woodlands dominated by <i>Fraxinus americana</i> and <i>Carya glabra</i>, occurring in nutrient-rich soils apparently derived from plagioclase-rich granitic rocks in the Piedmont of North Carolina and Georgia. Other canopy species include <i>Quercus montana, Juniperus virginiana var. virginiana, Ulmus alata, Carya pallida</i>, and <i>Pinus virginiana</i>. Shrub species include <i>Symphoricarpos orbiculatus, Rhus aromatica var. aromatica, Ptelea trifoliata, Spiraea corymbosa, Vaccinium stamineum, Vaccinium arboreum, Viburnum rufidulum, Juniperus virginiana var. virginiana</i>, and <i>Chionanthus virginicus</i>. Typical herb species include <i>Piptochaetium avenaceum, Arabis laevigata, Arabis canadensis, Arabis hirsuta var. pycnocarpa, Anemone virginiana, Anemone berlandieri, Asplenium platyneuron, Melica mutica, Tradescantia ohiensis, Packera obovata, Allium cuthbertii, Phlox nivalis ssp. hentzii, Aquilegia canadensis, Cunila origanoides, Verbesina occidentalis, Woodsia obtusa</i>, and <i>Carex pensylvanica</i>. |
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