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Name
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Reference
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Description |
Comm #5331
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Salix spp. / Andropogon gerardii - Sorghastrum nutans Riverscour Wet Meadow
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accession code: urn:lsid:vegbank.org:commConcept:33939-{179F1E24-91DE-4D03-94F1-83B2B249E462}
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NatureServe Biotics 2019 |
0
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This riverine gravel-cobble bar herbaceous type is found in the central parts of the United States, including the Interior Low Plateau. Stands may be found on both gravel and bedrock substrates that are scoured by spring floods. Shrubs include <i>Salix caroliniana, Cornus obliqua</i>, and others. <i>Andropogon gerardii</i> and <i>Sorghastrum nutans</i> are characteristic and/or dominant graminoids. In Indiana, herbaceous species include <i>Baptisia australis, Coreopsis tripteris, Hypericum sphaerocarpum</i>, and <i>Panicum virgatum</i>. This type needs further characterization. |
Comm #5332
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Tsuga heterophylla / Tolmiea menziesii Forest
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accession code: VB.CC.25760.TSUGAHETEROPHYL
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Western Ecology Working Group of... |
0
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Comm #5333
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Larrea tridentata - Ambrosia dumosa Shrubland
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accession code: VB.CC.33545.CEGL002954
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Western Ecology Working Group of... |
0
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This creosotebush shrubland association is currently described from Grand Canyon National Park and Grand Canyon-Parashant National Monument in Arizona and is reported from California and Nevada. More survey and classification work are needed to fully characterize this type. It typically occurs on sideslopes, but also occurs on mesas, alluvial fans, and drainage channels at 375 to 500 m (1250-1625 feet) elevation, but can be found as high as 650 m (2100 feet). It is typically found on low gradients (0-10°), across all aspects, but occasionally occurs on steeper slopes (10-20°). Soils are well- to rapidly-drained silty or sandy clays or loams, and the underlying geology is usually limestone or less frequently basalt. Vegetation is characterized by the codominance of the tall shrub <i>Larrea tridentata</i> and the dwarf-shrub <i>Ambrosia dumosa</i>. <i>Ferocactus cylindraceus</i> and <i>Opuntia acanthocarpa</i> occur most frequently in the sparse short-shrub layer. The dwarf-shrub layer also occasionally includes the cactus <i>Opuntia basilaris</i>. <i>Dasyochloa pulchella</i> and <i>Vulpia octoflora</i> are relatively common in a very sparse graminoid layer. <i>Cryptantha</i> spp., <i>Plantago</i> sp., <i>Eriogonum inflatum</i>, and <i>Erodium cicutarium</i> are regularly present in the forb understory. |
Comm #5334
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Agave pendentata - Mitracarpus acunae - Peratanthe cubensis Shrubland
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accession code: urn:lsid:vegbank.org:commConcept:36462-{13C9302D-1806-49BE-9B63-3AC2A65EE336}
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NatureServe Biotics 2019 |
0
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Low 0.5- to 1-m tall thicket on the rather exposed upper rocky slopes of the Turquino group, with an endemic <i>Agave</i> species and many shrubs and dwarf-shrubs (e.g., <i>Ilex nanophylla, Ilex turquinensis, Mitracarpus acunae, Cassia turquinae, Micromeria bucheri, Schoepfia stenophylla, Vernonia praestans ssp. cacuminis</i>). The shrubs are often intertwined by the lianas <i>Chusquea abietifolia</i> and <i>Arthrostylidium multispicatum</i>. DISTRIBUTION: Southeastern Cuba. |
Comm #5335
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A.791
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accession code: VB.CC.2422.A791
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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This shrubland alliance occurs in southeastern Arizona on gently to moderately sloping alluvial plains and bajadas to moderate and steep rocky slopes in canyons, foothills and mountains. Soils are gravelly or stony sandy loams or sandy clay loams, derived from a mixture of alluvium and colluvium. The broad-leaved evergreen shrub ~Quercus oblongifolia$ dominating a 3-5 m tall shrub canopy characterizes stands included in this shrubland alliance. Other characteristic shrub species include ~Agave$ spp., ~Arctostaphylos pungens, Brickellia$ spp., ~Cercocarpus montanus, Ericameria laricifolia, Dasylirion wheeleri, Garrya wrightii, Mimosa aculeaticarpa var. biuncifera, Nolina microcarpa, Opuntia imbricata, Opuntia phaeacantha, Quercus emoryi, Rhus trilobata, Vauquelinia californica, Yucca schottii$, and juvenile tree species. The graminoid and forb layers are sparse to moderately dense. The graminoid layer is dominated by medium-tall bunch grasses such as ~Bouteloua curtipendula, Schizachyrium cirratum (= Andropogon cirratus)$ or ~Muhlenbergia emersleyi$, but can be very diverse. Other common graminoids may include species of ~Bouteloua$ and ~Aristida, Bothriochloa barbinodis, Eragrostis intermedia, Hilaria$ spp., ~Leptochloa dubia, Muhlenbergia longiligula, Panicum bulbosum$, and~Piptochaetium fimbriatum$. The usually sparse, but often diverse, forb layer may include ~Artemisia ludoviciana, Commelina$ spp., ~Chenopodium$ spp., ~Evolvulus$ spp., ~Heliomeris longifolia var. annua (= Viguiera annua)$, and many others. Diagnostic of this alliance is the dominance of ~Quercus oblongifolia$ in the shrub canopy. |
Comm #5336
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Peltandra virginica - Pontederia cordata Tidal Herbaceous Vegetation
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accession code: VB.CC.26734.PELTANDRAVIRGIN
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Eastern Ecology Working Group of... |
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These are freshwater tidal marshes dominated by variable mixtures of Peltandra virginica and Pontederia cordata that are best expressed along the north Atlantic coast southward to Virginia. It occurs at low elevations within the freshwater tidal zone, often bordering open water. Peltandra virginica and Pontederia cordata are codominant. Associated species can include Bidens spp., Zizania aquatica, Sagittaria latifolia, Acorus americanus, Polygonum arifolium, Polygonum hydropiperoides, and Polygonum sagittatum. This community occurs on mucky substrates of variable depth. |
Comm #5337
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Cercocarpus intricatus Slickrock Sparse Vegetation
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accession code: VB.CC.34157.CEGL002977
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Western Ecology Working Group of... |
0
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This sparse shrubland association is restricted to exposures of massive sandstones such as on the Colorado Plateau. Elevations range between 1412 and 2348 m (4630-7700 feet), while slopes and aspects vary widely. The density of the vegetation is limited by the availability of crevices and shallow depressions where sandy soil collects and plants can root. Most of the surface is sandstone, sometimes nearly covered by lichens. Total vegetation cover is less than 15% and often less than 5%. <i>Cercocarpus intricatus</i> is dominant or codominant, with lesser cover by other shrubs such as <i>Amelanchier utahensis, Arctostaphylos patula, Artemisia bigelovii, Cercocarpus montanus, Glossopetalon spinescens var. meionandrum (= Forsellesia meionandra)</i>, or <i>Ephedra viridis</i>. The herbaceous layer is diverse, variable and low in cover. Occasional dwarfed individuals (often only 1-1.5 m tall) of <i>Pinus edulis</i> of <i>Juniperus osteosperma</i> may occur. |
Comm #5338
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CEGL000634
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accession code: VB.CC.3242.CEGL000634
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #5339
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CEGL000635
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accession code: VB.CC.3243.CEGL000635
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #5340
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CEGL000662
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accession code: VB.CC.3268.CEGL000662
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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