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A.1284 | EcoArt 2002
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Name: A.1284
Reference: EcoArt 2002
Description: Vegetation in this alliance occurs on mesas and plains in southern Great Plains and Chihuahuan Desert and is dominated or codominated by the perennial shortgrass ~Bouteloua eriopoda$ without shrubs or dwarf-shrubs. Nearly pure stands occasionally occur on sandy mesas and may not form a sod. Usually ~Bouteloua eriopoda$ is codominant with another grass such as ~Bouteloua curtipendula, Bouteloua gracilis, Bouteloua hirsuta, Bouteloua trifida, Pleuraphis jamesii (= Hilaria jamesii)$, or ~Hesperostipa neomexicana (= Stipa neomexicana)$. Associations in this alliance occur in a semi-arid climate with highly variable, bimodally distributed precipitation. Approximately two-thirds of the 20-40 cm mean annual precipitation occurs in the late summer and early fall, usually as localized high-intensity thunderstorms. Elevation ranges usually below 1800 m. Soils are generally sandy or stony loams. The abundance of ~Bouteloua eriopoda$-dominated grasslands has declined significantly within the last 50 years. 
Accession Code: VB.CC.1053.A1284
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.5.N.e
  • This Community's Level: Alliance
  • This Community's Children: [none]
Names:   Scientific: BOUTELOUA ERIOPODA HERBACEOUS ALLIANCE
  Code: A.1284
  Common: Black Grama Herbaceous Alliance
(convergence) and Synonyms:
(undetermined) Bouteloua eriopoda Herbaceous Alliance