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A.2553 | EcoArt 2002
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Name: A.2553
Reference: EcoArt 2002
Description: This shrub herbaceous alliance is described for the mountainous regions of the southern portion of the Challis Volcanics ecoregional section in central Idaho. Stands are found on gently sloped ridgetops and benches at 1830 to 2690 m (6000-8800 feet) elevation. Soils are typically poorly drained or subject to a lengthy period of saturation during spring. Stand structure and composition have not been studied in detail. ~Artemisia arbuscula ssp. thermopola$ is the dominant shrub species and occurs with abundant cover of ~Festuca idahoensis$. ~Poa secunda$ and ~Elymus elymoides$ are also usually present. ~Carex elynoides$ is important in high-elevation stands reported from one site. A variety of perennial forbs are usually present. These species are characteristic of rocky sites at moderate to high elevations in the mountains, including ~Erigeron compositus, Antennaria rosea, Phlox hoodii, Cymopterus nivalis (= Cymopterus bipinnatus), Eriogonum umbellatum$, and ~Lewisia rediviva$. Diagnostic of this alliance is a moderate (>20% cover) perennial graminoid layer with an ~Artemisia arbuscula ssp. thermopola$-dominated low-shrub layer that has 10-40% cover. 
Accession Code: VB.CC.1818.A2553
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 16-Apr-2002 to: 17-Mar-2005
     
  • status: accepted
  • Community's Parent: V.A.7.N.e
  • This Community's Level: Alliance
  • This Community's Children: [none]
Names:   Scientific: ARTEMISIA ARBUSCULA SSP. THERMOPOLA SHRUB HERBACEOUS ALLIANCE
  Code: A.2553
  Common: Thermopola Dwarf Sagebrush Shrub Herbaceous Alliance
(convergence) and Synonyms:
(undetermined) Artemisia arbuscula ssp. thermopola Shrub Herbaceous Alliance