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Add/Drop	Name	Reference	Plots↓	Description
Comm #11161	Pinus ponderosa / Leucopoa kingii Woodland » more details accession code: VB.CC.33330.CEGL000186	Western Ecology Working Group of...	0	This <i>Pinus ponderosa</i> woodland is known from the northern Front Range of Colorado and Wyoming from 1890 to 2800 m (6200-9200 feet) in elevation. It occurs on a variety of aspects, slopes and exposures, although it most typically occupies non-southerly aspects on gentle to moderate slopes (10-40%) with relatively deep, well-drained soils. This is one of the most mesic <i>Pinus ponderosa</i> associations in the Front Range. <i>Pinus ponderosa</i> dominates the tree layer, although <i>Pseudotsuga menziesii</i> and <i>Juniperus scopulorum</i> may be present in many stands. Shrub species, such as <i>Ribes cereum</i>, commonly occur in the association but are rarely abundant. <i>Leucopoa kingii (= Festuca kingii)</i> dominates the herbaceous layer with generally 5-20% cover and is diagnostic for this association. As the tree canopy becomes more closed, the herbaceous cover is reduced. <i>Elymus albicans, Carex rossii, Potentilla fissa, Allium geyeri, Geranium caespitosum, Harbouria trachypleura, Packera fendleri, Artemisia frigida</i>, and <i>Artemisia ludoviciana</i> are additional understory species that occur frequently in small abundance. Needle litter and duff is often present and thick.
Comm #11162	CEGL001478 » more details accession code: VB.CC.4055.CEGL001478 NOT CURRENTLY ACCEPTED	EcoArt 2002	0
Comm #11163	Pinus contorta (var. latifolia, var. murrayana) / Vaccinium uliginosum Forest » more details accession code: VB.CC.33074.CEGL000171	Western Ecology Working Group of...	0	This lodgepole pine forest association is currently known from Idaho, Oregon and California. This description is currently based on information from Yosemite National Park in California, Additional global information will be added as it becomes available. In Yosemite, this association is found along small streams and on the edges of meadows, or on slightly higher elevations in meadows, from approximately 2285-2925 m (7500-9600 feet) in elevation on gentle to moderate slopes of variable aspects. Soil textures range from silty loam of granitic origin to muck. Soils are somewhat poorly drained to poorly drained. Litter/duff cover ranges from 20-95%. Sites are palustrine. The tree layer is composed almost solely of <i>Pinus contorta var. murrayana</i>, ranging up to 35 m in height and up to 37% cover. <i>Vaccinium uliginosum</i> provides from 15-87% cover in the shrub layer, which is generally under 0.5 m. Other (sub)shrubs include <i>Vaccinium caespitosum</i> and <i>Kalmia polifolia</i>; <i>Pinus contorta var. murrayana</i> saplings are also present in the shrub layer. The herb layer is variable, with <i>Carex utriculata</i> providing most of the cover in this layer; other species include <i>Mimulus primuloides, Juncus drummondii</i>, and <i>Oreostemma alpigenum var. alpigenum</i>. Moss covers 5-40% of the ground.
Comm #11164	Carex utriculata Saturated Herbaceous Alliance » more details accession code: VB.CC.19355.CAREXUTRICULATA	Western Ecology Working Group of...	0
Comm #11165	Pinus contorta / Vaccinium scoparium Forest » more details accession code: VB.CC.33067.CEGL000172	Western Ecology Working Group of...	0	This widespread forest association is found in the upper montane and subalpine zones of the Rocky Mountains from central Colorado to Montana, east to the Black Hills and west to the mountains of Utah, Oregon and Washington. Elevation is variable depending on latitude and ranges from 3250 m (10,660 feet) in Colorado to 1555 m (5100 feet) in central Oregon. Stands occur on relatively cold, dry sites. Topography ranges from gentle to steep (10-100%) middle to upper slopes and ridgetops. Aspects are variable. Substrates are typically poorly developed, well-drained, gravelly, loamy sand or sandy loam soils that are too shallow or rocky for more mesic communities. Parent materials are variable. Ground cover is variable, with some stands having high cover of gravel and rock, and other stands having high cover of litter and duff. Vegetation is characterized by a <i>Pinus contorta</i>-dominated tree canopy with understory dominated by a patchy to continuous dwarf-shrub layer of <i>Vaccinium scoparium</i>. The tree canopy varies from moderately dense to nearly closed (40-90% cover) and is often composed solely of <i>Pinus contorta</i>. However, in some stands scattered <i>Abies lasiocarpa, Picea engelmannii, Pinus albicaulis</i> (northern stands), <i>Pinus flexilis, Populus tremuloides</i>, or <i>Pseudotsuga menziesii</i> trees may be present, especially in the subcanopy. Some stands have tree saplings and scattered shrubs, but not enough to form a tall- or short-shrub layer. The open to moderately dense dwarf-shrub layer is dominated by <i>Vaccinium scoparium</i> (indicator species) usually with 15-70% cover. Low cover of other dwarf-shrubs may be present such as scattered <i>Paxistima myrsinites, Rosa</i> spp., <i>Vaccinium caespitosum</i>, or <i>Juniperus communis</i>. The herbaceous layer if present is usually sparse but may be moderately dense and is typically dominated or codominated by perennial graminoids such as <i>Carex geyeri, Carex rossii (= Carex brevipes), Festuca brachyphylla, Poa nemoralis ssp. interior (= Poa interior), Poa nervosa</i>, or <i>Trisetum spicatum</i>. Forbs are generally sparse and may include <i>Antennaria</i> spp., <i>Arnica cordifolia, Chamerion angustifolium, Lupinus argenteus, Senecio</i> spp., and <i>Solidago</i> spp.
Comm #11166	Zizania aquatica - Cicuta maculata - Hydrocotyle umbellata Herbaceous Vegetation » more details accession code: VB.CC.35134.CEGL004716	Southeastern Ecology Working Gro...	0	This association occurs along the margins of 'spring run' rivers in the Panhandle of Florida. <i>Zizania aquatica</i> is usually dominant. Floating mats are common, and are usually dominated by <i>Cicuta maculata var. maculata (= Cicuta mexicana)</i> and <i>Hydrocotyle umbellata</i>. Other species include <i>Pontederia cordata, Sagittaria lancifolia, Polygonum</i> sp., and <i>Potamogeton illinoensis</i>.
Comm #11167	Pinus contorta var. latifolia / Vaccinium scoparium / Carex inops ssp. inops Forest » more details accession code: VB.CC.33650.CEGL000173	Western Ecology Working Group of...	0	This community is known to occur on the Klamath Ranger District of the Winema National Forest in Oregon. It is typically found between 1680-1980 m (5500-6500 feet) on low-gradient slopes (1-20%) of all aspects. Soils are rocky coarse loams over andesite, basalt, and glacial till. <i>Pinus contorta var. latifolia</i> dominates (30-70% cover). In some stands <i>Tsuga mertensiana</i> supports up to 5% cover. The shrub layer can be well-developed when dominated by <i>Vaccinium scoparium</i> (0-70% cover) and <i>Arctostaphylos nevadensis</i> (0-10% cover). The most extensive cover of <i>Vaccinium scoparium</i> is on deeper soiled sites, while <i>Arctostaphylos nevadensis</i> thrives best in rocky stands. The herbaceous layer often exhibits <i>Vaccinium membranaceum, Carex inops ssp. inops, Phlox diffusa</i>, and <i>Lupinus andersonii</i>, but all are very limited in cover. The rocky, well-drained pumice soils are best for <i>Pinus contorta</i> and, in concert with fire, limit <i>Tsuga mertensiana</i>.
Comm #11168	Taxodium distichum - Nyssa biflora / Sabal palmetto / Tillandsia (bartramii, usneoides) Forest » more details accession code: VB.CC.35274.CEGL003850	Southeastern Ecology Working Gro...	0	This forest type includes wet forests of Florida that are flooded by river overbank flow, and are dominated by a combination of <i>Taxodium distichum</i> and <i>Nyssa biflora</i>. <i>Sabal palmetto</i> and <i>Acer rubrum</i> are also typically present in the subcanopy, with <i>Itea virginica</i> and a variety of evergreen small trees and shrubs in various woody strata (e.g., <i>Persea palustris, Ilex cassine, Morella cerifera</i>, and <i>Lyonia lucida</i>). Other shrub and herb components vary among stands. The epiphytes <i>Tillandsia bartramii</i> and <i>Tillandsia usneoides</i> are typically present. This community occurs in sloughs and depressions in seasonally flooded Coastal Plain riverine settings.
Comm #11169	Pinus monticola / Clintonia uniflora Forest » more details accession code: VB.CC.32810.CEGL000176	Western Ecology Working Group of...	0	This is a mid-seral evergreen conifer forest that once was a major forest component in the mid elevations of the northern Rocky Mountains of Idaho, Montana, Oregon, Washington and British Columbia. This is described to include all <i>Pinus monticola</i> stands in the <i>Tsuga heterophylla, Thuja plicata, Abies grandis</i>, and warm <i>Abies lasiocarpa</i> series of the inland northwest. The forest canopy is dominated by <i>Pinus monticola</i> with a wide variety of sometimes codominant trees such as <i>Pseudotsuga menziesii, Abies grandis, Larix occidentalis</i>. The understory can be a mixture of deciduous shrubs, such as, <i>Acer glabrum</i> and/or mesic site forbs <i>Aralia nudicaulis, Asarum caudatum</i>, and <i>Clintonia uniflora</i>. Collectively this can be referred as the <i>Paxistima myrsinites</i> Union <i>sensu</i> Daubenmire.
Comm #11170	Pinus monticola / Xerophyllum tenax Woodland » more details accession code: VB.CC.32827.CEGL000177	Western Ecology Working Group of...	0	This open woodland association is known from the Applegate Ranger District of the Rogue River National Forest but may also be on neighboring Districts in Oregon, and may occur in northern California. Stands occur at elevations of 1860-1980 m (6110-6500 feet) on northeast, east, and south aspects on upper slopes and ridge tops. Slopes range 24-66%. Soil information is lacking. <i>Pinus monticola</i> dominates the upper tree canopy with 10% cover. <i>Abies x shastensis</i> and <i>Abies concolor</i> may be present with 2% and 1% cover, respectively. <i>Xerophyllum tenax</i> clearly dominates the herbaceous layer with about 73% cover. Minor associates include <i>Achillea millefolium</i> (1%) and <i>Carex</i> spp. (2%).