Invalid Unit Specified
CEGL001390 Prosopis velutina / Celtis laevigata var. reticulata Wet Scrub

The U.S. National
Vegetation Classification
Type Concept Sentence:
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Common (Translated Scientific) Name: Velvet Mesquite / Netleaf Hackberry Wet Scrub
Colloquial Name:
Hierarchy Level: Association
Type Concept: This shrubland is described from southern and central Arizona along drainages and lower slopes. Plot data from Buenos Aires National Wildlife Refuge indicate an elevational range of 1055-1150 m (3460-3780 m) where it is found along drainages and in floodplains. Stands in the Verde Valley at Tuzigoot National Monument occur on toeslopes at around 1500 m. Soils are sandy loam or loam. The vegetation is characterized by a moderately dense to dense tall-shrub (or short-tree) canopy codominated by Prosopis velutina and Celtis laevigata var. reticulata. Other tall shrubs/trees include Acacia greggii, Aloysia gratissima, Fraxinus velutina, Hymenoclea monogyra, Lycium pallidum, Mahonia haematocarpa (= Berberis haematocarpa), Mahonia trifoliolata, and Ziziphus obtusifolia. The herbaceous layer is sparse to moderately dense (10-50% cover) and may have high species richness of forbs (>25 species). Cover is codominated by graminoids and forbs, with common species including Amaranthus palmeri, Bouteloua aristidoides, Bouteloua rothrockii, Panicum hirticaule, Ipomoea hederacea, Setaria grisebachii, and Talinum aurantiacum. If present, Eragrostis lehmanniana cover is low (less than 25% cover and less than a third of the total perennial graminoid cover).
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features:
Classification Comments: No Data Available
Similar NVC Types:
Physiognomy and Structure: No Data Available
Floristics: This association is characterized by a moderately dense to dense tall-shrub (or short-tree) canopy codominated by Prosopis velutina and Celtis laevigata var. reticulata. Other tall shrubs/trees include Acacia greggii, Aloysia gratissima, Fraxinus velutina, Hymenoclea monogyra, Lycium pallidum, Mahonia haematocarpa (= Berberis haematocarpa), Mahonia trifoliolata, and Ziziphus obtusifolia. The herbaceous layer is sparse to moderately dense (10-50% cover) and may have high species richness of forbs (>25 species). Cover is codominated by graminoids and forbs, with common species including Amaranthus palmeri, Bouteloua aristidoides, Bouteloua rothrockii, Panicum hirticaule, Ipomoea hederacea, Setaria grisebachii, and Talinum aurantiacum. If present, Eragrostis lehmanniana cover is low (less than 25% cover and less than a third of the total perennial graminoid cover).
Dynamics: No Data Available
Environmental Description: This shrubland is described from southern and central Arizona. Plot data from Buenos Aires National Wildlife Refuge indicate an elevational range of 1055-1150 m (3460-3780 m) where it is found along drainages and in floodplains. Stands in the Verde Valley at Tuzigoot National Monument occur on toeslopes at around 1500 m. Soils are sandy loam or loam. Parent materials include limestone and alluvium.
Geographic Range: This shrubland occurs in southern and central Arizona and likely occurs in northern Mexico.
Nations: MX?, US
States/Provinces: AZ, MXSO?
US Forest Service Ecoregions (1994/1995)
Domain Name:
Division Name:
Province Name: Colorado Plateau Semi-Desert Province
Province Code: 313    Occurrence Status: Confident or certain
Section Name: Grand Canyon Lands Section
Section Code: 313A     Occurrence Status: Confident or certain
Omernik Ecoregions:
Confidence Level: Low - Poorly Documented
Confidence Level Comments:
Grank: GNR
Greasons:
Concept Lineage:
Predecessors:
Obsolete Names:
Obsolete Parents:
Synonomy: = Prosopis velutina/Celtis reticulata (Bourgeron and Engelking 1994)
< DRISCOLL FORMATION CODE:III.C.2.b. (Driscoll et al. 1984)
= Mesquite - Netleaf Hackberry - Burroweed Riparian Scrub Association (Anderson et al. 1985)
Concept Author(s): Western Ecology Group
Author of Description: K.A. Schulz
Acknowledgements:
Version Date: 17Aug2007
References:
  • Anderson, L. S., P. L. Warren, and F. W. Riechenbacher. 1985. Vegetation associations of the Muleshoe Ranch Preserve. Unpublished report prepared for The Arizona Nature Conservancy, Tucson. 15 pp.
  • Bourgeron, P. S., and L. D. Engelking, editors. 1994. A preliminary vegetation classification of the western United States. Unpublished report. The Nature Conservancy, Western Heritage Task Force, Boulder, CO. 175 pp. plus appendix.
  • Driscoll, R. S., D. L. Merkel, D. L. Radloff, D. E. Snyder, and J. S. Hagihara. 1984. An ecological land classification framework for the United States. Miscellaneous Publication No. 1439. USDA Forest Service, Washington, DC. 56 pp.
  • McLaughlin, S., and W. V. Asdall. 1980. Flora and vegetation of the Rosemont area. Pages 64-89 in: R. Davis and J. R. Callahan, editors. An environmental inventory of the Rosemont area in Southern Arizona, Volume 1: The Present Environment. Unpublished manuscript prepared for the Anamax Mining Company by the University of Arizona, Tucson.
  • Schulz, K. A. 2004. Vegetation classification of Buenos Aires National Wildlife Refuge, Arizona. Unpublished report submitted to USDI Fish and Wildlife Service. NatureServe, Western Regional Office, Boulder, CO.
  • TNC [The Nature Conservancy]. 1995e. USGS-NPS Vegetation Mapping Program: Vegetation classification of Tuzigoot National Monument. The Nature Conservancy, Midwest Regional Office, Minneapolis, MN, and International Headquarters, Arlington, VA. 59 pp.
  • Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.