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5201010

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Add/Drop	Name	Reference	Plots↓	Description
Comm #5191	A.1316 » more details accession code: VB.CC.1089.A1316 NOT CURRENTLY ACCEPTED	EcoArt 2002	0	These grasslands are found in small but re-occurring montane parks in the ~Pinus ponderosa$ forests of the northern Front Range of Colorado and in Wyoming. Elevations range from 2450-3000 m. Sites are moderately sloping (10-20%), with southern and western aspects. Soils are shallow to moderately deep (>60 cm) usually with less than 20% coarse fragments. Soil texture is sandy loam and pH 6.4-6.6. Parent material is alluvium and colluvium derived from gneiss and schist. These dry grasslands form a mosaic with the ~Pinus ponderosa$ forest. They have a moderately dense (60-70% cover) herbaceous layer that is dominated by the perennial bunchgrass ~Danthonia parryi$. Other frequent graminoids are ~Carex inops ssp. heliophila, Muhlenbergia montana, Festuca arizonica, Koeleria macrantha, Poa secunda$, and ~Poa fendleriana$. Forbs are diverse but contribute little cover (usually less than 10%) and include ~Antennaria rosea, Eriogonum umbellatum, Gaillardia aristata, Gentiana$ spp., ~Mertensia lanceolata, Penstemon$ spp., and ~Potentilla hippiana$. The dwarf-shrub ~Artemisia frigida$ is often scattered through these stands. At higher elevations these grasslands occur in an ecotone with ~Pinus contorta$ forests, and at lower elevations mountain shrub and other dry grassland communities are common neighbors.
Comm #5192	Schizachyrium scoparium - Sorghastrum nutans - Clinopodium arkansanum Alkaline Herbaceous Vegetation » more details accession code: VB.CC.27258.SCHIZACHYRIUMSC	Midwestern Ecology Working Group...	0	This dry-mesic to mesic alkaline grassland community is found in the northern prairie-forest border region of the midwestern United States, particularly in Illinois and Ohio. Stands occur on gentle to moderately steep slopes of rolling hills and plains. The soil is typically well-drained, shallow to moderately deep (40-100 cm), neutral to slightly alkaline, stony, and formed over dolomite or limestone. Bedrock outcrops may be present. The vegetation in this community is typically medium dense and dominated by a combination of mid and tall grasses. Schizachyrium scoparium and Sorghastrum nutans are the most abundant grasses, and Andropogon gerardii and Hesperostipa spartea (= Stipa spartea) are common associates. Other frequently occurring herbaceous species include Asclepias tuberosa, Carex meadii, Camassia scilloides, Desmanthus illinoensis, Dodecatheon meadia, Echinacea pallida, Eleocharis compressa, Galium boreale, Lithospermum canescens, Dalea purpurea (= Petalostemon purpureus), and Clinopodium arkansanum (= Satureja arkansana). Woody species, such as Cornus foemina and Juniperus virginiana, are sometimes found, especially where fire has not occurred for long periods.
Comm #5193	Fraxinus latifolia - Populus balsamifera ssp. trichocarpa / Corylus cornuta - Physocarpus capitatus Forest » more details accession code: VB.CC.34143.CEGL003364	Western Ecology Working Group of...	0
Comm #5194	Agrostis exarata - Agrostis scabra Herbaceous Vegetation » more details accession code: VB.CC.27028.AGROSTISEXARATA	Western Ecology Working Group of...	0	This association occurs at middle to upper elevations on sand and gravel bars. The bars are located on low-gradient streams in moderately wide valley bottoms. Larger stands may become established on mud flats left behind by failed beaver dams. The larger stands are usually short-lived and Carex spp. or other perennial graminoids quickly become established. Agrostis scabra and Agrostis exarata are usually present with at least 1% cover. Species composition is otherwise diverse. The herbaceous vegetation does not form continuous cover, but sandbars are usually more densely vegetated than gravel bars.
Comm #5195	A.1284 » more details accession code: VB.CC.1053.A1284 NOT CURRENTLY ACCEPTED	EcoArt 2002	0	Vegetation in this alliance occurs on mesas and plains in southern Great Plains and Chihuahuan Desert and is dominated or codominated by the perennial shortgrass ~Bouteloua eriopoda$ without shrubs or dwarf-shrubs. Nearly pure stands occasionally occur on sandy mesas and may not form a sod. Usually ~Bouteloua eriopoda$ is codominant with another grass such as ~Bouteloua curtipendula, Bouteloua gracilis, Bouteloua hirsuta, Bouteloua trifida, Pleuraphis jamesii (= Hilaria jamesii)$, or ~Hesperostipa neomexicana (= Stipa neomexicana)$. Associations in this alliance occur in a semi-arid climate with highly variable, bimodally distributed precipitation. Approximately two-thirds of the 20-40 cm mean annual precipitation occurs in the late summer and early fall, usually as localized high-intensity thunderstorms. Elevation ranges usually below 1800 m. Soils are generally sandy or stony loams. The abundance of ~Bouteloua eriopoda$-dominated grasslands has declined significantly within the last 50 years.
Comm #5196	A.1401 » more details accession code: VB.CC.1175.A1401 NOT CURRENTLY ACCEPTED	EcoArt 2002	0	This alliance, found in the northeastern Great Plains, occurs in shallow marshes or wet prairies. The moderately dense to dense vegetation is dominated by graminoids 0.5-1.0 m tall. Forbs are not common, and shrubs are very rare. ~Scolochloa festucacea$ is the single most abundant species and may occur in almost monotypic stands. Other abundant species include ~Carex atherodes$ (especially on less saline sites), ~Carex laeviconica, Eleocharis palustris, Glyceria grandis, Juncus balticus, Sium suave$, and ~Typha latifolia$ (in wetter stands). ~Lemna minor$ may also be abundant where surface water is present for most of the growing season. ^This alliance is found on sites with standing water for part of the growing season. The water table may be above the surface for only a few weeks in spring and after heavy rains or constantly until midsummer. Stands dominated by ~Scolochloa festucacea$ can be found on marginally fresh to moderately saline stands. The soils are typically medium- to fine-textured and often have an accumulation of organic matter.
Comm #5197	Distichlis spicata - Mixed Herb Herbaceous Vegetation » more details accession code: VB.CC.34128.CEGL001771	Western Ecology Working Group of...	0	Flooding is often from groundwater wicking to the surface. The most 'typical' playa in inland saltgrass communities; forb diversity is high. Includes <i>Salicornia rubra, Suaeda calceoliformis (= Suaeda depressa), Crepis</i> spp., <i>Iva</i> spp., <i>Triglochin maritima, Puccinellia nuttalliana, Juncus balticus</i>. <i>Hordeum jubatum</i> increases with grazing. These are short grasslands.
Comm #5198	A.215 » more details accession code: VB.CC.1731.A215 NOT CURRENTLY ACCEPTED	EcoArt 2002	0	Forests of this alliance are dominated by ~Acer grandidentatum$, occupying mesic canyon bottoms and lower slopes of the Edwards Plateau region of central Texas. ~Acer grandidentatum$ is often the sole dominant, but oaks are usually associated, including ~Quercus muehlenbergii, Quercus buckleyi$, and ~Quercus laceyi$. Other typical trees are ~Juniperus ashei, Prunus serotina var. eximia$, and ~Juglans major$.
Comm #5199	CEGL000223 » more details accession code: VB.CC.2849.CEGL000223 NOT CURRENTLY ACCEPTED	EcoArt 2002	0
Comm #5200	CEGL000224 » more details accession code: VB.CC.2850.CEGL000224 NOT CURRENTLY ACCEPTED	EcoArt 2002	0