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Name
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Reference
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Description |
Comm #12851
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Ernodea littoralis / Uniola paniculata - Muhlenbergia filipes Herbaceous Vegetation
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accession code: VB.CC.36285.CEGL004000
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Southeastern Ecology Working Gro... |
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This coastal grassland community of southwestern Florida typically has scattered shrubs of various heights and is dominated by <i>Ernodea littoralis</i> with <i>Uniola paniculata</i> and <i>Muhlenbergia filipes</i>. It occurs from Pinellas County south to Lee County, Florida. Other characteristic species include <i>Sabal palmetto, Opuntia stricta, Phyllanthus abnormis, Coccoloba uvifera, Oenothera humifusa, Heliotropium polyphyllum</i>, and <i>Croton punctatus</i>. |
Comm #12852
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Populus tremuloides / Amelanchier alnifolia / Pteridium aquilinum Forest
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accession code: VB.CC.23858.POPULUSTREMULOI
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Western Ecology Working Group of... |
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This deciduous forest occurs on primarily on northerly and easterly exposures but has been seen on southeastern and southern exposures as well. It occurs at relatively low elevations in the mountains of northern Utah and western Wyoming. It is know from 2100 to 2193 m (7000-7195 feet) elevation. Soils are primarily derived from sandstone. It occurs on mid to lower slopes on up to 34% grades. The tree layer is almost exclusively Populus tremuloides. Abies concolor or Abies lasiocarpa may be present in the tree layer or as seedlings, but not in such abundance as to suggest eventual replacement of aspen dominance in the overstory. The tall-shrub stratum is dominated by Acer grandidentatum, Prunus virginiana, or Amelanchier alnifolia, or any combination of those species. Low shrubs, such as Symphoricarpos oreophilus, Rosa woodsii, or Mahonia repens, are also often present, sometimes in substantial amounts. The most distinctive feature is the abundance of Pteridium aquilinum in the herbaceous undergrowth. Forbs are often also present with Osmorhiza spp., Galium boreale, Rudbeckia occidentalis, and Thalictrum occidentale. Graminoids are also common with Elymus glaucus, Bromus carinatus, Agrostis exarata, Calamagrostis rubescens, Juncus saximontanus, Carex laeviculmis, and Carex lenticularis. This association is differentiated from the similar Populus tremuloides / Pteridium aquilinum Forest (CEGL000597) by the presence of an abundant tall-shrub layer. |
Comm #12853
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Schizachyrium scoparium - Andropogon gerardii - Sorghastrum nutans - Bifora americana Mollisol Herbaceous Vegetation
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accession code: VB.CC.35261.CEGL004025
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Southeastern Ecology Working Gro... |
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This tallgrass prairie community occurs on Mollisols in the Texas Blackland Prairie region and the Fort Worth Prairie region (Diamond and Smeins 1990). It has a greater abundance of <i>Andropogon gerardii</i> than the other Texas Blackland Prairie types. Within the Blackland Prairie region, this type occurs primarily on the north-to-south-oriented Whiterock Cuesta, a limestone outcrop of late Cretaceous age, while it is situated on limestone of early Cretaceous age in the Fort Worth Prairie region. In both regions mid grasses including <i>Bouteloua curtipendula, Bouteloua hirsuta</i>, and <i>Nassella leucotricha</i> are important. In the Fort Worth Prairie <i>Bouteloua hirsuta var. pectinata (= Bouteloua pectinata)</i> can be dominant along with <i>Aristida</i> spp. on rocky outcrops with a variety of xeric forbs, including species such as <i>Hedeoma reverchonii var. reverchonii, Dyschoriste linearis, Onosmodium molle ssp. occidentale (= Onosmodium occidentale), Dalea purpurea, Dalea aurea, Dalea enneandra</i>, and <i>Yucca pallida</i>. On similar sites in the Blackland Prairie region, <i>Yucca arkansana</i> replaces <i>Yucca pallida</i> (J. Eidson pers. comm.). The rock outcrop phase of this community may merit later recognition as a distinct phase when more data become available. |
Comm #12854
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Muhlenbergia montana Herbaceous Alliance
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accession code: VB.CC.22413.MUHLENBERGIAMON
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Western Ecology Working Group of... |
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This grassland alliance has been described from montane meadows in the mountains and foothills of Colorado and Utah. Sites where found are typically xeric forest openings or parks in the Ponderosa Pine zone with southern aspects on moderately steep slopes and ridgetops. Occasionally the stands occupy rolling parklands. The xeric nature of sites appears to be an important environmental factor. Soils are moderately deep Mollisols, with high coarse-fragment content, sandy loam textures, and a distinct clay horizon. Parent materials are primarily colluvium derived from granite and gneiss. Bare soil, exposed gravels, and small rocks account for as much as 50% of the ground surface area. Vegetation included in this alliance is characterized by a moderately dense herbaceous layer that is typically dominated by Muhlenbergia montana, but may be codominated by Hesperostipa comata (= Stipa comata) or by Trisetum spicatum (= Trisetum montanum) (in New Mexico). Other associated graminoids include Blepharoneuron tricholepis, Bouteloua curtipendula, Bouteloua gracilis, Carex duriuscula (= Carex eleocharis), Danthonia parryi, Elymus albicans (= Elymus lanceolatus ssp. albicans), Festuca brachyphylla, Koeleria macrantha, Muhlenbergia filiculmis, Pascopyrum smithii, Poa secunda, and Schizachyrium scoparium. The typically sparse forb layer often consists of Allium geyeri, Antennaria rosea, Arenaria fendleri, Eriogonum umbellatum, Harbouria trachypleura, Heterotheca villosa, Mertensia lanceolata, Opuntia polyacantha, and Penstemon secundiflorus. Except for the abundant dwarf-shrub Artemisia frigida, woody species are very sparse or absent. The exotic perennial grass Poa pratensis is common in some of these stands. Diagnostic of this grassland alliance is the dominance of Muhlenbergia montana in the herbaceous layer and that cover of Festuca arizonica will not be significant. |
Comm #12855
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Carex helleri - Eriogonum incanum - Raillardella argentea Herbaceous Vegetation
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accession code: VB.CC.20462.CAREXHELLERIERI
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Western Ecology Working Group of... |
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Comm #12856
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Quercus gambelii / Fendlera rupicola Shrubland
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accession code: VB.CC.31913.CEGL004010
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Western Ecology Working Group of... |
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This tall shrubland is known from a single plot at Canyon de Chelly National Monument in northeastern Arizona in the southern Colorado Plateau. It occurs in a west-facing canyon bottom at 1631 m (5351 feet) elevation on a gentle slope (10%) at the base of a cliff. The soil is a sandy loam and there is high cover of litter on the ground surface. The vegetation is characterized by a moderately dense (50-75% cover), tall-shrub (>10 m) canopy dominated by <i>Quercus gambelii</i> with <i>Fendlera rupicola</i> dominant in the moderate shrub layer (25-50% cover). The total vegetation cover class for this stand is 75-100%. Other shrubs (all with <1% cover) are <i>Ericameria nauseosa, Morus alba, Opuntia erinacea</i>, and <i>Yucca baccata</i>. The vine <i>Vitis arizonica</i> is abundant. The herbaceous stratum has a high diversity of species, each having <1% cover, except for <i>Thalictrum fendleri</i>, which has a cover class of 1-5%. Other herbaceous species include <i>Achillea millefolium, Arabis fendleri, Arenaria lanuginosa ssp. saxosa, Artemisia ludoviciana, Erigeron divergens, Heterotheca villosa, Hymenoxys richardsonii, Monarda fistulosa var. menthifolia, Penstemon barbatus</i>, and <i>Poa fendleriana</i>. Exotic species such as <i>Taraxacum officinale</i> and <i>Bromus tectorum</i> may be present. |
Comm #12857
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CEGL001091
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accession code: VB.CC.3690.CEGL001091
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #12858
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CEGL001092
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accession code: VB.CC.3691.CEGL001092
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #12859
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CEGL001312
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accession code: VB.CC.3898.CEGL001312
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #12860
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CEGL001313
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accession code: VB.CC.3899.CEGL001313
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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