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Add/Drop	Name	Reference	Plots↓	Description
Comm #5671	Atriplex gardneri / Pleuraphis jamesii Dwarf-shrubland » more details accession code: VB.CC.19196.ATRIPLEXGARDNER	Western Ecology Working Group of...	0
Comm #5672	Abies grandis - Thuja plicata / Achlys triphylla Forest » more details accession code: VB.CC.33346.CEGL002669	Western Ecology Working Group of...	0	This is a conifer forest association with a rich forb undergrowth. It is located near stream bottoms in the eastern Cascades near the Columbia River gorge. These sites are generally found between 730 and 1010 m (2400-3300 feet) and sites are generally free of prolonged snow accumulation. The existing vegetation is characterized by <i>Pseudotsuga menziesii</i> and <i>Abies grandis</i> trees codominating the tree canopy, with <i>Thuja plicata</i> also frequent in the canopy and in regeneration layers. The shrub layer is fairly sparse with patches of tall <i>Acer circinatum</i> and shorter <i>Rosa gymnocarpa, Mahonia nervosa</i> and <i>Symphoricarpos mollis</i>. The herbaceous layer is patchy with <i>Trientalis borealis ssp. latifolia (= Trientalis latifolia), Achlys triphylla</i> and other moist forest forbs.
Comm #5673	Pritchardia martii Forest Alliance » more details accession code: VB.CC.23561.PRITCHARDIAMART	Western Ecology Working Group of...	0
Comm #5674	Sarcobatus vermiculatus / Atriplex confertifolia - (Picrothamnus desertorum, Suaeda moquinii) Shrubland » more details accession code: VB.CC.20902.SARCOBATUSVERMI	Western Ecology Working Group of...	0
Comm #5675	Achnatherum nelsonii - Lupinus sericeus Herbaceous Vegetation » more details accession code: VB.CC.27446.ACHNATHERUMNELS	Western Ecology Working Group of...	0	This montane, mesic to subxeric, herbaceous association is uncommon in Waterton Lakes National Park, Alberta, and on the west side of Glacier National Park, Montana. It occurs at elevations between 1090 and 1360 m (3580-4460 feet) under a broad range of environmental conditions, on flat to somewhat steep slopes from the basin floor to high slopes at various aspects. Soil texture ranges from moderately well-drained to rapidly drained silt loam or clay. These are generally moderately to well-developed, medium- to coarse-textured soils that have developed on fluvial, morainal, and sometimes eolian landforms. These landforms include alluvial terraces, benches, fluvial fans, and ground moraines. Litter and small rock dominate the ground surface. One of the sampled areas in Glacier National Park burned in the 1988 Red Bench fire. This association is dominated by Achnatherum nelsonii with 1-90% cover, Lupinus sericeus with 5-15% cover, and Koeleria macrantha with 10-20% cover. Overall herbaceous cover ranges from 90-100% with moderate species diversity and heights less than 0.5 m. Other moderate- to high-constancy species with average cover ranging from 1-5% include Galium boreale, Achillea millefolium, Festuca idahoensis, Gaillardia aristata, Arnica sororia, Antennaria parvifolia, Zigadenus elegans, Anemone multifida, Castilleja lutescens, Lithospermum ruderale, and Potentilla gracilis. Low-constancy herbaceous species that may have conspicuous cover in certain areas are Pseudoroegneria spicata, Danthonia parryi, Fragaria virginiana, Selaginella densa, Monarda fistulosa, Poa nemoralis ssp. interior (= Poa interior), Carex petasata, Apocynum androsaemifolium, and Elymus trachycaulus. Poa pratensis and Phleum pratense may also be present with low to moderate cover in disturbed areas. Shrubs may be present in certain areas with low cover. Common shrubs may include Dasiphora fruticosa ssp. floribunda, Arctostaphylos uva-ursi, and Rosa acicularis. Nonvascular cover averages 5%.
Comm #5676	Atriplex parryi Shrubland [Placeholder] » more details accession code: VB.CC.22416.ATRIPLEXPARRYIS	Western Ecology Working Group of...	0
Comm #5677	Atriplex parryi Shrubland Alliance » more details accession code: VB.CC.22417.ATRIPLEXPARRYIS	Western Ecology Working Group of...	0
Comm #5678	Abies lasiocarpa - Picea engelmannii / Menziesia ferruginea - Vaccinium scoparium Forest » more details accession code: VB.CC.28264.ABIESLASIOCARPA	Western Ecology Working Group of...	0	This association is found from central Idaho (middle Rocky Mountains) and extreme northwestern Oregon's Blue Mountains northward to northern Idaho, northwestern Montana, British Columbia and southwestern Alberta (northern Rocky Mountains and Canadian Rockies). It is generally characterized as occurring at the highest elevations of mesic forests, which is roughly from 1830 to 2200 m (6000-7200 feet). Though sites are relatively mesic, located predominantly on moderate to steep north- to east-facing slopes that may receive greater amounts of moisture due to blow-over, they are also stressful due to the frequency of high winds and cold temperatures. It is hypothesized that these sites receive less snowload and/or experience a later melt-off date than those supporting Abies lasiocarpa - Picea engelmannii / Menziesia ferruginea / Luzula glabrata var. hitchcockii Woodland (CEGL005896) and occupy colder microenvironments than does Abies lasiocarpa - Picea engelmannii / Menziesia ferruginea / Xerophyllum tenax Forest (CEGL005895). Parent materials are various, comprised of colluvium (of sedimentary and intrusive igneous nature) and ash cap to Lithosols comprised of both calcareous and noncalcareous sedimentary rock. This open forest type is Abies lasiocarpa- and Picea engelmannii-dominated from the time of earliest post-shrub stage of succession. Pinus contorta and Pinus albicaulis are the only seral species of note. Tree height is usually less than 60 feet. The undergrowth is comparatively species-poor, but its cover, between the tall-shrub layer of Menziesia ferruginea, Alnus viridis ssp. sinuata, and Sorbus scopulina, and short/dwarf-shrub layer of Vaccinium membranaceum, Vaccinium scoparium, and Vaccinium myrtillus, is virtually continuous. The species-depauperate forb layer is almost invariably dominated by Xerophyllum tenax with Arnica cordifolia, Arnica latifolia, Goodyera oblongifolia, and various Pedicularis species having the highest constancy.
Comm #5679	Salix boothii / Equisetum arvense Shrubland » more details accession code: VB.CC.32388.CEGL002671	Western Ecology Working Group of...	0	This uncommon riparian shrubland grows on slopes along the sides of valleys in western Wyoming, and on seepy toeslopes in Idaho and Utah. The sites supporting stands of this type are slopes with wet soils along the edges of stream valleys, usually on the toeslope immediately above the valley floor. <i>Salix boothii</i> and <i>Salix drummondiana</i> form a dense, tall-shrub layer. The understory has abundant <i>Equisetum arvense</i>, and contains at least 5% cover of <i>Mitella pentandra, Parnassia fimbriata, Saxifraga odontoloma</i>, and <i>Galium triflorum</i>, alone or in combination.
Comm #5680	Quercus nigra - Quercus geminata / Lyonia ferruginea - Serenoa repens Forest » more details accession code: VB.CC.27698.QUERCUSNIGRAQUE	Southeastern Ecology Working Gro...	0	This type includes evergreen oak hammocks of Florida Panhandle riverbanks that are dominated by Quercus nigra, Quercus geminata, Lyonia ferruginea, and Symplocos tinctoria in the canopy and tall-shrub strata. Serenoa repens is the dominant low shrub.