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Add/Drop	Name↑	Reference	Plots	Description
Comm #1	4168ja » more details accession code: VB.cc.29759.4168JA NOT CURRENTLY ACCEPTED	UNKNOWN	1	This is the same association as 4168, but with a "Juniperus ashei co-dominant" (in the canopy) modifier
Comm #2	4168rl » more details accession code: VB.cc.29756.4168RL NOT CURRENTLY ACCEPTED	UNKNOWN	1	This is the same association as 4168, but with a "Rhus lanceolata shrubland" modifier. Rhus lanceolata becomes dominant if the association is burned frequently.
Comm #3	4180ja » more details accession code: VB.cc.29753.4180JA NOT CURRENTLY ACCEPTED	UNKNOWN	1	This is the same association as 4180, but with a "Juniperus ashei co-dominant" (in the canopy) modifier.
Comm #4	A.1 » more details accession code: VB.CC.768.A1	EcoArt 2002	0	These are disturbed successional forests, with ~Cecropia$ and ~Ochroma$ as major components.
Comm #5	A.10 » more details accession code: VB.CC.769.A10	EcoArt 2002	0	Disturbed areas, especially in lowland coastal areas, dominated by the exotic ~Terminalia catappa$.
Comm #6	A.100 » more details accession code: VB.CC.770.A100	EcoArt 2002	0	This alliance includes planted stands of ~Pinus virginiana$ with little understory, but may have admixtures of other native or off-site pines. These are cultivated forests and are not considered natural or near-natural vegetation. They are maintained as plantations for the harvest of forest products. Stands have suffered some damage from the Southern Pine Beetle (~Dendroctonus frontalis$).
Comm #7	A.1000 » more details accession code: VB.CC.771.A1000 NOT CURRENTLY ACCEPTED	EcoArt 2002	0	These communities are located in the moderate to high-elevation (1200-3000 m) seep habitats of the Cascade Range where deep snow accumulations are common. They usually occur in shallow but deeply sloping ravines that receive moisture from snowmelt or groundwater discharge throughout the growing season. Often the ravines where these communities occur are also avalanche tracts. The wet soils and/or avalanche disturbance act to discourage colonization by coniferous trees and allow full sunlight to reach the ground at these sites. Soils are often composed of unstable talus, but may also be similar in structure to adjacent forest soils. A dense tall-shrub cover of ~Alnus viridis ssp. sinuata$ characterizes these communities. ~Acer circinatum$ and/or ~Alnus incana$ may be codominant in the tall-shrub layer in some stands. ~Acer glabrum, Spiraea douglasii$, and ~Sorbus scopulina$ may also be present. Low cold-deciduous or ericaceous shrubs may be abundant, including ~Rubus spectabilis, Rubus parviflorus, Oplopanax horridus, Paxistima myrsinites$, and ~Vaccinium$ spp., particularly west of the Cascade crest. A lush herbaceous layer is usually present, including forbs such as ~Aconitum columbianum, Veratrum viride, Senecio triangularis, Urtica dioica, Osmorhiza berteroi (= Osmorhiza chilensis), Achillea millefolium$, and large ferns, including ~Athyrium filix-femina$ and ~Polystichum munitum$. Adjacent vegetation is usually montane or subalpine coniferous forest dominated by ~Abies amabilis, Tsuga mertensiana, Pinus contorta, Picea engelmannii$, or other forest species.
Comm #8	A.1001 » more details accession code: VB.CC.772.A1001 NOT CURRENTLY ACCEPTED	EcoArt 2002	0	This widespread alliance occurs throughout much of the western U.S. at elevations from 1320-2800 m. Sites include valley bottoms on swales, banks, and occasionally terraces of stream channels which receive surface water for extended periods of time, especially during the early part of the growing season. Stands adjacent to the stream channel receive moisture from overland and lateral stream flows, and are often associated with beaver ponds. Stands occur on terraces that have a continually high water table. Vegetation in the alliance is also located adjacent to seeps on gently sloping toeslopes, and occasionally in bogs or fens. Soils generally have a deep organic layer with some minerals, fine sands, loams, and clays and gravel or cobbles below. Communities within this shrubland alliance are characterized by a moderately dense to dense ~Salix boothii$-dominated tall-shrub layer. Other shrubs may codominate, including ~Salix geyeriana, Salix planifolia$ or ~Salix drummondiana$. ~Salix wolfii$ may occasionally form a relatively sparse, low-shrub layer. Other shrubs may include ~Lonicera involucrata, Betula nana (= Betula glandulosa)$, and~Ribes$ spp. The moderately dense to dense herbaceous layer is dominated by graminoids and includes ~Carex aquatilis, Carex utriculata, Carex nebrascensis, Deschampsia caespitosa, Juncus balticus$, and ~Trisetum wolfii$. Forb cover is sparse to moderately dense. Common forbs are ~Symphyotrichum foliaceum (= Aster foliaceus), Hedysarum sulphurescens, Geum macrophyllum, Mertensia ciliata, Trollius laxus$, and ~Urtica dioica$. Diagnostic of this wetland alliance is a ~Salix boothii$-dominated or -codominated tall shrubland that is flooded for extended periods during the growing season.
Comm #9	A.1002 » more details accession code: VB.CC.773.A1002 NOT CURRENTLY ACCEPTED	EcoArt 2002	0	Communities within this uncommon alliance occur in cold bogs, fens, or wet meadows, often where alkaline or marl soils are present. Stands are restricted to anchored organic mats along pond and lake margins. They range in elevation from 1475-2805 m. Soils are characterized by organic horizons greater than 1 m. Water tables normally remain at or near the soil surface throughout the growing season. Communities within this alliance are defined as seasonally flooded cold-deciduous shrublands. They are dominated by ~Salix candida$, a short shrub that can reach heights of 3 m, but usually is less than 1 m. The short-shrub layer is characterized by scattered clumps of ~Salix candida$ over a dense (25-60%) stand of ~Carex utriculata, Carex simulata, Schoenoplectus acutus (= Scirpus acutus)$, and ~Carex aquatilis$. The forb layer is sparse and consists of ~Triglochin maritima, Menyanthes trifoliata$, and ~Polygonum amphibium$. Adjacent upslope communities are typically ~Dasiphora fruticosa ssp. floribunda (= Pentaphylloides floribunda)$ with ~Deschampsia caespitosa$.
Comm #10	A.1003 » more details accession code: VB.CC.774.A1003 NOT CURRENTLY ACCEPTED	EcoArt 2002	0	Communities found within the ~~Salix commutata$ Seasonally Flooded Shrubland Alliance (A.1003)$$ are found in the subalpine zone. Stands are confined to narrow riparian zones along upper reaches of streams and to elongated openings in higher elevation forests. Stands are typically found at moderate to high elevations between 2065 and 2220 m. Microtopography is usually hummocky to undulating. Slopes range from 2-4%. Soils in the Idaho stands are wet to saturated at the surface by flowing groundwater for most or all of the growing season. Soils are poorly to very poorly drained due to accumulation of organic material. Vegetation stands within this alliance are classified as seasonally flooded cold-deciduous shrublands. ~Salix commutata$ dominates the shrub canopy with cover of >25%. ~Salix planifolia$ and ~Lonicera caerulea$ may also be present. ~Carex scopulorum$ dominates the herbaceous layer with ~Calamagrostis canadensis$. ~Galium trifidum$ has high constancy, and some stands contain a complement of wet site forbs such as ~Aconitum columbianum$ and ~Caltha leptosepala ssp. howellii (= Caltha biflora)$. Adjacent communities may be herbaceous bogs dominated by ~Eleocharis quinqueflora (= Eleocharis pauciflora)$. In some stands, a fringe of ~Vaccinium uliginosum (= Vaccinium occidentale)$ separates the bog from the willow stands.