Login | Datasets | Logout
 

View Community Concepts - Detail

A.1543 | EcoArt 2002
  click to update datacart
Name: A.1543
Reference: EcoArt 2002
Description: Stands of this alliance occur on mesas, hillslopes, sand dunes, and along drainage channels on the Colorado Plateau and Great Basin. Elevation ranges from 1530-1920 m. Climate is semi-arid. Slopes vary from 0-30% depending on landform. All aspects are possible. The soil ranges from sand to sandy loam derived from aeolian deposits overlaying sandstone. Vegetation included in this alliance is characterized by a moderately dense graminoid layer (25-40% cover) dominated by the medium-tall bunchgrass ~Achnatherum hymenoides (= Oryzopsis hymenoides)$, with a sparse (10-25% cover) xeromorphic short-shrub layer typically dominated by ~Ephedra viridis$ or ~Ephedra torreyana$ mixed with occasional ~Artemisia bigelovii, Atriplex canescens, Ericameria nauseosa, Eriogonum corymbosum, Gutierrezia sarothrae$, or ~Parryella filifolia$. ~Bouteloua gracilis, Hesperostipa comata (= Stipa comata), Muhlenbergia porteri, Pleuraphis jamesii, Sporobolus airoides$, or ~Sporobolus cryptandrus$ may be present to codominant. Forbs have sparse cover. 
Accession Code: VB.CC.1304.A1543
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.h
  • This Community's Level: Alliance
  • This Community's Children: [none]
Names:   Scientific: ACHNATHERUM HYMENOIDES SHRUB HERBACEOUS ALLIANCE
  Code: A.1543
  Common: Indian Ricegrass Shrub Herbaceous Alliance
(convergence) and Synonyms:
(undetermined) Achnatherum hymenoides Shrub Herbaceous Alliance