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Larrea tridentata / Sporobolus airoides Shrubland | NatureServe Biotics 2019
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Name: Larrea tridentata / Sporobolus airoides Shrubland Reference: NatureServe Biotics 2019 Description: This is a major type that occurs extensively throughout the Tularosa and Jornada del Muerto basins in New Mexico. It is also reported from Texas. This association primarily occurs at low elevations on alluvial plains and across basin flats. Because slope grades are very gentle and often flat, soils, not aspects, are probably the important determinant of community distribution. They are generally fine in texture, but may vary between loamy sands and silty loams, with occasional gravel deposits. This structure is probably maintained by the late-summer monsoon runoff received from surrounding mountains. This is a moderately diverse Chihuahuan shrubland that is characterized by a very open <i>Larrea tridentata</i>-dominated canopy and a grassy understory which is clearly dominated by <i>Sporobolus airoides</i>. The shrub layer frequently includes scattered <i>Atriplex canescens, Lycium berlandieri, Prosopis glandulosa</i> (a suggested phase), and sometimes <i>Flourensia cernua</i>. The understory densities are highly variable among stands, and often the bunchgrasses will intermix with bare soil patches. Other species common to the herbaceous layer include <i>Muhlenbergia porteri</i> (found under and around shrub canopies) and <i>Acourtia nana</i>, which may indicate mesic microsites.  Accession Code: urn:lsid:vegbank.org:commConcept:30186-{0144C097-24C5-4C5D-8F98-7FD37A778B5A} Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 30-Aug-2012 to: ongoing
	status: accepted Community's Parent: Sporobolus airoides - Sporobolus wrightii - Panicum obtusum Lowland Desert Grassland Alliance This Community's Level: Association This Community's Children: [none]		Names:   UID: ELEMENT_GLOBAL.2.685053 NatureServe Explorer   Code: CEGL001277   Translated: Creosotebush / Alkali Sacaton Shrubland   Scientific: Larrea tridentata / Sporobolus airoides Shrubland (convergence) and Synonyms: (similar) CEGL001277 (similar) Larrea tridentata / Sporobolus airoides Shrubland (similar) Larrea tridentata / Sporobolus airoides Shrubland