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Add/Drop	Name	Reference	Plots↓	Description
Comm #13001	Leucaena leucocephala / Urochloa maxima Ruderal Shrubland » more details accession code: VB.CC.31705.CEGL005404	Western Ecology Working Group of...	0	This semi-natural shrubland is currently sampled from a single national historical park in Hawaii, and this description is based on occurrences there. Additional global information will be added as it becomes available. These shrublands are found on gentle slopes. The shrub canopy is moderately open and short (2-5 m) with <i>Leucaena leucocephala</i> as the dominant species. There is essentially no shorter shrub stratum. The herbaceous stratum is fairly dense and strongly dominated by <i>Urochloa maxima</i>.
Comm #13002	Wikstroemia spp. Dwarf-shrubland Alliance » more details accession code: VB.CC.19759.WIKSTROEMIASPPD	Western Ecology Working Group of...	0
Comm #13003	CEGL000915 » more details accession code: VB.CC.3517.CEGL000915 NOT CURRENTLY ACCEPTED	EcoArt 2002	0
Comm #13004	A.1664 » more details accession code: VB.CC.1419.A1664 NOT CURRENTLY ACCEPTED	EcoArt 2002	0	This alliance is found in the Lake Tahoe area of California and Nevada in wet meadows and other moist, mostly open places at moderate to high elevation (2600 to 2700 m). These meadows are found on gentle slopes in areas where the snow may persist late into the season or melt early. Standing water may be present but is uncommon. Generally, the water table lies between 25 and 88 cm below the surface. Plant communities within this alliance are dominated by ~Mimulus primuloides$. Typically, ~Carex scopulorum$ codominates the canopy. ~Deschampsia caespitosa, Oreostemma alpigenum var. andersonii (= Aster alpigenus ssp. andersonii)$, and ~Salix eastwoodiae$ are associated species in the Lake Tahoe stands. Species richness is low to moderate with an average of 18 species per stand. Total cover is high, 90-100%, and generally with 0-2% bare ground.
Comm #13005	CEGL000023 » more details accession code: VB.CC.2651.CEGL000023 NOT CURRENTLY ACCEPTED	EcoArt 2002	0
Comm #13006	Juniperus communis Carbonate Cliff Shrubland » more details accession code: VB.CC.36990.CEGL005066	Midwestern Ecology Working Group...	0
Comm #13007	A.840 » more details accession code: VB.CC.2470.A840 NOT CURRENTLY ACCEPTED	EcoArt 2002	0	This shrubland alliance is found on alluvial terraces, flats and sand bars in central and south-central Arizona. Stands are restricted to the corridors of intermittent drainages and floodplains from 670-1070 m in elevation. Soils are generally sandy, frequently with many cobbles and boulders. These relatively mesic shrublands utilize moisture from the water table and are dependent on intermittent flooding of washes to supplement the soil moisture and maintain the ground water levels. Stands are typically a dense thicket (60-80% canopy cover) of deciduous shrubs and trees up to 4 m tall. The dominant diagnostic species is the microphyllous shrub ~Baccharis sarothroides$, which grows up to 2 m. Codominants may include two tall-shrub/tree species, ~Parkinsonia microphylla$ and ~Prosopis glandulosa$, and the shrub ~Baccharis salicifolia$. Other associated woody species include ~Populus$ spp., ~Chilopsis linearis, Quercus turbinella, Celtis pallida, Acacia greggii$, and ~Ambrosia ambrosioides$. The herbaceous layer is sparse, but may include ~Mentzelia multiflora, Polanisia dodecandra ssp. trachysperma, Eriogonum$ spp., and ~Sporobolus$ spp.
Comm #13008	Suaeda calceoliformis Herbaceous Vegetation » more details accession code: VB.CC.31712.CEGL005417	Western Ecology Working Group of...	0	This association is only known from the San Luis Valley of Colorado, but likely is more widespread throughout the range of the dominant species. This association occurs on basin floor sabkhas at 2300 m elevation. Sites can be temporarily, intermittently, or seasonally flooded with bare dry, cracked soils in the dry season. Soils range from poorly drained silty clay or sandy clay, to somewhat poorly drained silt, or well-drained silt loam. Bare soil is the dominant nonvegetative ground cover ranging from 70-95%. Vegetation is characterized by a sparse to moderately dense herbaceous layer dominated by <i>Suaeda calceoliformis</i> with 20-40% cover. Total cover may by up to 60% and may include scattered short shrubs of <i>Sarcobatus vermiculatus</i>. <i>Distichlis spicata</i> is also present in all sampled stands with up to 20% cover. Other species present include <i>Kochia americana, Schoenoplectus maritimus, Cleome multicaulis</i>, and <i>Chenopodium foliosum</i>.
Comm #13009	Juniperus scopulorum Woodland » more details accession code: VB.CC.36073.CEGL003550	Southeastern Ecology Working Gro...	0	This broadly defined type represents vegetation dominated by the nominal species within the given range. Additional types may be developed as more information becomes available. In Texas, <i>Juniperus scopulorum</i> forms nearly pure stands on mesic slopes and in canyons along the Caprock escarpment (the escarpment area between the High Plains and Rolling Plains in northwestern Texas), surrounded by <i>Juniperus pinchotii</i>-grassland communities (Diamond 1993).
Comm #13010	Abies lasiocarpa / Jamesia americana Forest » more details accession code: VB.CC.22892.ABIESLASIOCARPA	Western Ecology Working Group of...	0	This high-elevation forest is dominated by Abies lasiocarpa. Picea engelmannii is not present. Pseudotsuga menziesii and Populus tremuloides are major serial species in the forest canopy. Abies concolor may be a minor serial species. Shrub cover is high, dominated by Jamesia americana (diagnostic) with Ribes pinetorum, Rubus idaeus, Sambucus racemosa var. melanocarpa (= Sambucus melanocarpa), and Symphoricarpos oreophilus. Herbaceous cover is sparse and patchy, with graminoids essentially absent and forb diversity low. Vicia americana is most common with traces of Aquilegia spp., Galium spp., Pteridium aquilinum, Orthilia secunda (= Ramischia secunda), Senecio spp., Viola canadensis, and Woodsia spp. This association is restricted to cold-mesic, steep, talus northern slopes near the summit of Mt. Lemmon in the Santa Catalina Mountains in southeastern Arizona.