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A.1554 | EcoArt 2002
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Name: A.1554
Reference: EcoArt 2002
Description: This alliance is found in the northern Great Plains and Rocky Mountain foothills. The vegetation typically has moderate to dense cover. Medium-tall (0.5-1.5 m) shrubs are scattered throughout; their total canopy cover is 10-25%. The shrub layer is dominated by ~Sarcobatus vermiculatus$, with ~Atriplex confertifolia, Artemisia tridentata$, and ~Chrysothamnus viscidiflorus$ in smaller amounts. ~Symphoricarpos occidentalis$ and ~Rhus aromatica$ are sometimes found in more mesic microhabitats within this community. Herbaceous cover is sparse beneath the shrubs and moderate to dense in between. The dominant species are typically 0.5-1 m tall. The most abundant species is ~Pascopyrum smithii$, usually accompanied by ~Bouteloua gracilis, Bromus japonicus, Bromus tectorum$, and ~Hesperostipa comata (= Stipa comata)$. Few forbs are found in this community. ~Achillea millefolium$ and ~Opuntia polyacantha$ are the only species with high constancy. Overall species diversity in this community is low. ^Stands in this alliance are found on flat to gently sloping alluvial fans, terraces, lakebeds, and floodplains. ~Sarcobatus vermiculatus$ has been found in association with ~Pascopyrum smithii$ only on the most arid parts of southwestern Saskatchewan. The soil is usually deep clay, silty clay, sandy clay, or loam, although coarse soils are possible. They are saline or alkaline, but salt crusts on the surface are absent (Thilenius et al. 1995). Parent material is usually alluvium. Flooding during the spring is possible. 
Accession Code: VB.CC.1314.A1554
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: V.A.7.N.n
  • This Community's Level: Alliance
  • This Community's Children: [none]
Names:   Code: A.1554
  Scientific: SARCOBATUS VERMICULATUS INTERMITTENTLY FLOODED SHRUB HERBACEOUS ALLIANCE
  Common: Black Greasewood Intermittently Flooded Shrub Herbaceous Alliance
(convergence) and Synonyms:
(undetermined) Sarcobatus vermiculatus Intermittently Flooded Shrub Herbaceous Alliance