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Reference
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Description |
Comm #2421
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Phragmites australis ssp. australis Eastern Ruderal Marsh
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accession code: urn:lsid:vegbank.org:commConcept:32985-{949A050B-AC69-41C1-8DDD-41F6BB046A0F}
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NatureServe Biotics 2019 |
5
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This reed marsh type is found across the east-temperate regions of the United States and Canada. Stands occur in semipermanently flooded marshes, ditches, impoundments, etc., that have often been disturbed by human activity. The vegetation is variable, as <i>Phragmites australis</i> will often invade into existing natural or semi-natural communities present on the site. Once firmly established, this community is usually strongly dominated by <i>Phragmites australis ssp. australis</i>, with few or no other vascular plants present. |
Comm #2422
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Populus angustifolia / Salix irrorata Riparian Woodland
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accession code: urn:lsid:vegbank.org:commConcept:31555-{C5994D6B-EF1B-4252-99F1-226D54EC20A3}
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NatureServe Biotics 2019 |
5
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This riparian woodland association represents young, early-seral stands of <i>Populus angustifolia</i> occurring in the transition zone between <i>Populus angustifolia</i> and <i>Populus deltoides</i> in Colorado and the San Francisco River watershed in southwestern New Mexico. Stands are found at or below the high-water mark on streambanks, point bars and sidebars of meandering low-gradient rivers that are flooded perhaps every five years at mid elevations (1700-2200 m). Soils have been reported as sandy-skeletal Oxyaquic Ustifluvents. The association is characterized by all age classes of <i>Populus angustifolia</i>, but may include significant cover of <i>Populus deltoides ssp. monilifera</i> in stands in the upper South Platte River Basin of Colorado. <i>Populus x acuminata</i> and <i>Salix amygdaloides</i> may also be present. In New Mexico stands, <i>Populus angustifolia</i> and <i>Populus fremontii</i> codominate a dense tree canopy. <i>Salix irrorata</i> and <i>Salix exigua</i> codominate the shrubby understory. The shrub canopy consists of thick bands of willow along the streambank, mostly <i>Salix irrorata</i> but may include <i>Salix exigua, Salix monticola</i>, and <i>Alnus incana</i>. Herbaceous undergrowth is sparse; however, invasive annual species can be abundant, including <i>Agrostis stolonifera, Poa pratensis, Bromus inermis, Ambrosia artemisiifolia, Chenopodium fremontii, Salsola kali, Sisymbrium altissimum</i>, and <i>Xanthium strumarium</i>. Native species present may include <i>Rudbeckia laciniata, Carex nebrascensis, Glyceria grandis, Schoenoplectus acutus</i>, and <i>Epilobium</i> spp. Native wetland indicators that have been recorded for the type are <i>Schoenoplectus pungens</i> and <i>Equisetum arvense</i>. |
Comm #2423
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Artemisia filifolia Colorado Plateau Shrubland
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accession code: urn:lsid:vegbank.org:commConcept:31605-{A0F10779-E418-4449-986C-2F5A02768A3A}
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NatureServe Biotics 2019 |
5
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This sand sagebrush shrubland association is widespread in the Colorado Plateau of Utah, Arizona and probably New Mexico. Total vegetation cover ranges from sparsely vegetated (<5%) on often disturbed sites to stable, well-developed communities with more than 50% cover. Regardless, the vegetation is characterized by an open shrub canopy dominated by <i>Artemisia filifolia</i> that is usually mixed with other shrubs, especially <i>Atriplex canescens, Coleogyne ramosissima, Ephedra torreyana, Ephedra viridis, Ericameria nauseosa, Psorothamnus fremontii, Rhus aromatica, Sarcobatus vermiculatus</i>, and <i>Vanclevea stylosa</i>. The herbaceous layer is moderate in terms of species composition and provides sparse to moderate cover. Graminoids include <i>Achnatherum hymenoides, Elymus repens, Hesperostipa comata, Pleuraphis jamesii, Sporobolus cryptandrus, Sporobolus giganteus</i>, and <i>Vulpia octoflora</i>. Forbs vary among sites but are typical of sandy habitats, including <i>Abronia fragrans, Lepidium montanum, Oenothera pallida</i>, and <i>Sphaeralcea parvifolia</i>. Cryptogams may be absent or may provide up to 40% cover. This shrubland occurs on sandy soils of valley floors, stream terraces, stabilized dunes and sandsheets, benches, floodplains and alluvial fans. Most sites are level to gently sloping. Elevations range from 1122 to 1769 m (3645-5803 feet). Soils are sandy and derived from sandstones, alluvium, or eolian deposits. |
Comm #2424
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Artemisia tridentata ssp. vaseyana / Hesperostipa comata Shrubland
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accession code: urn:lsid:vegbank.org:commConcept:31833-{6EDA53BB-B7B5-4768-8130-36D2E1BBF54F}
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NatureServe Biotics 2019 |
5
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This association is known from southern Utah to southern Idaho and western Wyoming and is likely to occur in northern Nevada. It occurs on moderate slopes between 1372 to 2850 m (4500-9350 feet) elevation. Soils are deep and range from clay loam to sandy loams. <i>Artemisia tridentata ssp. vaseyana</i> is the dominant shrub. <i>Purshia tridentata, Symphoricarpos oreophilus, Ericameria</i> sp., <i>Artemisia tripartita</i>, and <i>Amelanchier alnifolia</i> may be present at upper elevations, and at lower altitudes <i>Chrysothamnus viscidiflorus</i> and <i>Tetradymia canescens</i> can be common. <i>Hesperostipa comata</i> is the principal understory species. <i>Festuca idahoensis, Pseudoroegneria spicata</i>, and <i>Koeleria macrantha</i> may be present in small amounts. Other herbaceous species that may be present include <i>Carex rossii, Achnatherum lettermanii, Achnatherum nelsonii, Pseudoroegneria spicata, Poa pratensis, Antennaria microphylla</i>, and <i>Eriogonum umbellatum</i>. |
Comm #2425
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Cercocarpus montanus Rock Pavement Sparse Vegetation
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accession code: urn:lsid:vegbank.org:commConcept:31880-{C509F9A3-8F43-48FC-9305-DBFC869862E8}
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NatureServe Biotics 2019 |
5
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This association has only been described from Zion National Park, Utah. Additional global information will be added as it becomes available. At Zion National Park, the total shrub cover in this association is between 5 and 20%. <i>Cercocarpus montanus</i> usually dominates or codominates the shrub component with various combinations of <i>Amelanchier utahensis, Arctostaphylos patula</i>, and/or <i>Quercus gambelii</i>. Single standing <i>Juniperus osteosperma</i> and <i>Pinus edulis</i> may be found. Few herbaceous species are present and they are extremely sparse in cover. This association occurs on gentle to steep mesa rims and mountain ridges where most of the exposed ground is rock pavement or high cover of small and large rock fragments. Soils are sandy or silty. Elevation ranges from 2042 to 2500 m (6700-8200 feet). |
Comm #2426
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Arctostaphylos glauca Shrubland
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accession code: urn:lsid:vegbank.org:commConcept:31909-{CA4DA961-A472-48F9-ADCA-741EA1885DCB}
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NatureServe Biotics 2019 |
5
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This shrubland is known from central and southern California and Baja California, Mexico. It occurs in the Central Coast, the inner Central and South Coast, and montane Transverse and Peninsular ranges of southern California, and into Baja California, Mexico. The shrubland occurs on gentle to steep (7-22°) slopes from 423 to 649 m (138-2130 feet) elevation on variable aspects. Soils are clay to coarse or fine sandy loams. Stands occur on mid to upper slopes but can be seen on lower slopes as well. This shrubland is solely dominated by <i>Arctostaphylos glauca</i>. Characteristic shrubs at lower cover include <i>Adenostoma fasciculatum, Ceanothus cuneatus var. cuneatus</i>, and <i>Malosma laurina</i>. The emergent tree layer may include <i>Pinus sabiniana</i>. The understory herbaceous layer may include the forbs <i>Camissonia</i> spp., <i>Galium</i> spp., <i>Marah macrocarpus, Phacelia cicutaria, Cerastium glomeratum, Logfia gallica, Galium porrigens var. porrigens, Marah fabaceus, Pentagramma triangularis ssp. triangularis</i>, and <i>Microseris lindleyi</i>, and the graminoid <i>Vulpia myuros</i>. |
Comm #2427
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Ceanothus leucodermis Shrubland [Placeholder]
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accession code: urn:lsid:vegbank.org:commConcept:31925-{9EB6BE23-7E49-4829-AD27-B079F348947C}
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NatureServe Biotics 2019 |
5
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Comm #2428
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Quercus garryana var. fruticosa Shrubland [Placeholder]
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accession code: urn:lsid:vegbank.org:commConcept:31978-{CA3CF5F0-706F-4387-A205-A6FD3E36D45C}
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NatureServe Biotics 2019 |
5
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Comm #2429
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Muhlenbergia rigens Association
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accession code: urn:lsid:vegbank.org/vegbranch:commConcept:28775-{62CC537C-AC72-452F-9708-D6660F7AA9A8}
NOT CURRENTLY ACCEPTED
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MCV2 |
5
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Comm #2430
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Arctostaphylos uva - ursi - Fragaria virginiana - (Festuca roemeri) Dwarf-shrubland [Proposed]
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accession code: urn:lsid:ecoobs.vegbank.org:commConcept:11-{4546EA4E-4862-4153-B0AB-5455810A44A9}
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Ramm-Granberg 2020 |
5
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NVC Code CEGL008242 |
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