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A.998 | EcoArt 2002
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Name: A.998
Reference: EcoArt 2002
Description: Vegetation types within the ~~Salix brachycarpa$ Seasonally Flooded Shrubland Alliance (A.998)$$ are widespread in the upper montane and subalpine areas in the western United States. They range in elevation from 2000 m to 4050 m. Stands typically occur along the drier fringes of broad, glaciated basins and along broad, straight streams in the subalpine zone. They occupy elevated hummocks and drier sideslopes, often surrounding wetter, low areas vegetated with ~Salix planifolia$ associations. Stands can also occur on low floodplains (0-10% slope) immediately adjacent to the stream channel. Landforms can include wet meadows, slopes, fens, wet alkaline or marly barrens, and streambanks. Soil textures typically include loam, sandy clay loam, and silty clay loam. Mottles may also be present in the first layer of the profile. In California, ~Salix brachycarpa$ communities can be found on limestone. ~Salix planifolia$ and ~Salix wolfii$ shrublands occur on adjacent wet swales and hummocks. ~Carex aquatilis$ and ~Carex utriculata$ meadows occur on adjacent flat, saturated areas. ~Abies lasiocarpa - Picea engelmannii / Calamagrostis canadensis$ forests also occur in adjacent riparian areas. Communities within this alliance are characterized as seasonally flooded, cold-deciduous shrublands. ~Salix brachycarpa$ is the dominant shrub in this plant association with 25-60% cover. Other shrubs include 5-10% cover of ~Dasiphora fruticosa ssp. floribunda (= Pentaphylloides floribunda), Salix wolfii$ , and 0-5% cover of ~Salix monticola$. The herbaceous undergrowth is a thick carpet of grasses and grass-like plants dominated by 15-30% cover of ~Carex aquatilis$ and ~Carex utriculata$. Other graminoids include 10-25% cover of ~Juncus balticus, Carex scopulorum$ , and ~Deschampsia caespitosa$. Forb cover includes 0-30% ~Thermopsis divaricarpa, Maianthemum stellatum$, and ~Potentilla$ sp. 
Accession Code: VB.CC.2625.A998
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 26-Nov-1997 to: 17-Mar-2005
     
  • status: accepted
  • Community's Parent: III.B.2.N.e
  • This Community's Level: Alliance
  • This Community's Children: [none]
Names:   Scientific: SALIX BRACHYCARPA SEASONALLY FLOODED SHRUBLAND ALLIANCE
  Code: A.998
  Common: Short-fruit Willow Seasonally Flooded Shrubland Alliance
(convergence) and Synonyms:
(undetermined) Salix brachycarpa Seasonally Flooded Shrubland Alliance