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Add/Drop	Name	Reference	Plots↓	Description
Comm #13331	Abies concolor / Ceanothus velutinus Forest » more details accession code: VB.CC.24004.ABIESCONCOLORCE	Western Ecology Working Group of...	0
Comm #13332	CEGL001319 » more details accession code: VB.CC.3905.CEGL001319 NOT CURRENTLY ACCEPTED	EcoArt 2002	0
Comm #13333	A.43 » more details accession code: VB.CC.2093.A43 NOT CURRENTLY ACCEPTED	EcoArt 2002	0	Tropical maritime hammocks generally codominated by ~Sabal palmetto$ and ~Coccoloba uvifera$. These forests are relatively simple in structure and composition and have less diverse canopies compared to other hardwood hammocks of south Florida. One extremely rare association in this alliance is dominated by the nominal species and also has ~Piscidia piscipula, Myrsine floridana$, and ~Hymenocallis latifolia$.
Comm #13334	A.1268 » more details accession code: VB.CC.1036.A1268 NOT CURRENTLY ACCEPTED	EcoArt 2002	0	This alliance contains grasslands dominated by ~Sporobolus flexuosus$ found in sandy basins and piedmonts in southern New Mexico. Associated species can include ~Dasyochloa pulchella (= Erioneuron pulchellum), Paspalum setaceum, Psorothamnus scoparius$, and ~Sporobolus contractus$.
Comm #13335	Andropogon gerardii - Bouteloua curtipendula - Echinacea simulata Coosa Valley Barren Herbaceous Vegetation » more details accession code: VB.CC.34937.CEGL004045	Southeastern Ecology Working Gro...	0	This barrens vegetation occurs in the Coosa River valley of northwestern Georgia and northeastern Alabama and represents the drier end of a spectrum of small prairie-like openings in a mosaic of gently rolling terrain over the Conasauga Group geology including calcareous shale and limestone. These small openings (generally less than 1 ha) are dominated by a mixture of perennial grasses and forbs many of which are disjunct midwestern prairie species or narrowly distributed endemics adapted to the unique edaphic factors present at these sites. This drier variant occurs in exposed upland topographic situations either on the crest of low ridges or south- or west-facing slopes where limestone and calcareous shale are at close proximity to the surface. Prairie-related grasses such as <i>Schizachyrium scoparium, Andropogon gerardii, Sporobolus heterolepis, Bouteloua curtipendula</i>, and <i>Sorghastrum nutans</i> typically predominate. <i>Panicum virgatum</i> is also a dominant grass species. Prairie goldenrods such as <i>Oligoneuron rigidum</i> and <i>Oligoneuron album</i> are also distinct components along with <i>Echinacea simulata</i>. Other disjunct elements include <i>Spiranthes magnicamporum, Asclepias hirtella, Baptisia australis var. aberrans (= Baptisia minor var. aberrans)</i>, and <i>Hypericum sphaerocarpum</i>. Other herbaceous species found in this association include <i>Silphium trifoliatum var. latifolium, Sporobolus vaginiflorus, Liatris squarrosa var. hirsuta, Liatris aspera, Ruellia humilis, Solidago nemoralis, Physostegia virginiana, Helenium autumnale, Rudbeckia fulgida, Onosmodium virginianum, Comandra umbellata, Eurybia hemispherica (= Aster hemisphericus), Allium cernuum, Scutellaria parvula var. missouriensis (= Scutellaria leonardii), Carex crawei, Isanthus brachiatus, Ionactis linariifolius, Buchnera americana, Houstonia canadensis, Lobelia spicata, Asclepias viridiflora, Symphyotrichum laeve var. concinnum</i>, and <i>Gaura filipes</i>.
Comm #13336	Taxodium distichum East Gulf Coastal Plain Pondshore Woodland » more details accession code: VB.CC.35011.CEGL004046	Southeastern Ecology Working Gro...	0	This association represents <i>Taxodium distichum</i>-dominated pondshores of the Gulf Coastal Plain east of the Mississippi River. These ponds and lakes may be of a variety of natural origins or of "unnatural" origin (e.g., millponds). Stands on the Conecuh National Forest contain <i>Taxodium distichum</i> and few other taxa.
Comm #13337	CEGL003368 » more details accession code: VB.CC.5439.CEGL003368 NOT CURRENTLY ACCEPTED	EcoArt 2002	0
Comm #13338	Pleuraphis jamesii - Sporobolus airoides Herbaceous Vegetation » more details accession code: VB.CC.32278.CEGL001778	Western Ecology Working Group of...	0	This once-extensive grassland of the northern Chihuahuan Desert, Colorado Plateau and Great Basin has been described in New Mexico from White Sands Missile Range and the upper Rio Puerco watershed, as well as in north-central Arizona and southeastern Utah. It has, however, experienced significant declines throughout its range. It primarily occurs in swales within open valley bottoms and alluvial flats, although sandsheets and dunes also can support the association. Sites are on level to gentle slopes (&lt;15%) at elevations between 1300-2075 m (4260-6800 feet). Soils are generally deep, with surface textures ranging from loamy sands, fine loams to silty clay loams and clays, derived from substrates that include lava flows, cinders, eolian sands, alluvium and relict Pleistocene river cobbles. The vegetation is characterized by a sparse to moderately dense perennial herbaceous layer that is dominated by <i>Pleuraphis jamesii (= Hilaria jamesii)</i> with <i>Sporobolus airoides</i> as a subdominant. Total vegetation cover in grazed sites generally does not exceed 20% but may be as high as 50% in protected areas. Occasionally, <i>Sporobolus airoides</i> may be codominant or dominant over <i>Pleuraphis jamesii</i>. This association usually has a sparse but diverse shrub layer that may include scattered <i>Atriplex canescens, Atriplex confertifolia, Atriplex obovata, </i><i>Coleogyne ramosissima, </i><i>Ephedra torreyana, Ericameria nauseosa, Gutierrezia sarothrae, Krascheninnikovia lanata, Opuntia imbricata, Opuntia macrorhiza, Opuntia phaeacantha, Sarcobatus vermiculatus</i>, and <i>Yucca angustissima</i>. The key graminoid species dominate the herbaceous layer and account for more than 80% of the total plant cover. Associated herbaceous species, such as <i>Achnatherum hymenoides, Bouteloua gracilis, Muhlenbergia porteri, Muhlenbergia pungens, Muhlenbergia torreyi, Pascopyrum smithii, Scleropogon brevifolius, Sphaeralcea coccinea</i>, and <i>Sporobolus cryptandrus</i>, may be present with low cover. Biological soil crusts may be extensive in undisturbed examples of this association.
Comm #13339	Quercus alba - Carya (glabra, ovata) / Desmodium glutinosum Forest » more details accession code: VB.CC.24904.QUERCUSALBACARY	Eastern Ecology Working Group of...	0	Dry, rich forest of Great Lakes. Other species include Fraxinus americana, Carya glabra, Quercus velutina, Quercus rubra, Ostrya virginiana, Acer saccharum, Vaccinium pallidum, Rosa carolina.
Comm #13340	Quercus stellata - Quercus falcata / Ostrya virginiana Forest » more details accession code: VB.CC.34978.CEGL004064	Southeastern Ecology Working Gro...	0	This forest appears to be the driest upland community present in the loessal region of southern Crowley's Ridge, Arkansas. Stands occur in high landscape positions on narrow ridges of very limited size and extent. The most diagnostic feature of this forest is dominance of <i>Quercus stellata</i> in the overstory, along with a significant component of <i>Quercus falcata</i>. <i>Quercus velutina</i> may also be present. <i>Quercus alba</i> is typically uncommon or absent (found more frequently on dry-mesic locations, typically downslope). <i>Ostrya virginiana</i> is common in the subcanopy, as it is in nearly all upland forests on this portion of Crowley's Ridge. <i>Carya pallida</i> and <i>Sassafras albidum</i> are also indicative of this type, and are generally lacking from other southern Crowley's Ridge forests. The density and composition of the herbaceous layer of this forest varies according to management history, but can be quite lush and fairly diverse.