Print Report

CEGL005331 Calliandra eriophylla / Eragrostis lehmanniana Ruderal Shrubland

Type Concept Sentence: No Data Available


Common (Translated Scientific) Name: Fairy Duster / Lehmann''s Lovegrass Ruderal Shrubland

Colloquial Name: No Data Available

Hierarchy Level:  Association

Type Concept: This shrubland typically occurs on gentle midslopes of ridges in southern Arizona at around 1090 m (3580 feet) elevation. Soils are well-drained sandy loam. The vegetation is characterized by a moderately dense (20-50% cover) short-shrub canopy strongly dominated by Calliandra eriophylla with an open to moderately dense (20-30% cover) herbaceous layer dominated or codominated by Eragrostis lehmanniana. Other common species are Aristida spp., Bouteloua chondrosioides, Bouteloua eriopoda, Bouteloua hirsuta, Bouteloua rothrockii, Chloris virgata, Gutierrezia spp., Opuntia engelmannii, and Setaria spp. Diagnostic of this shrubland association is the strong dominance of Calliandra eriophylla in the shrub layer with 20% or more cover and Eragrostis lehmanniana in the herbaceous layer with over a third of the total perennial graminoid cover or over 25% cover. Other shrubs may be present, such as Prosopis velutina, Dasylirion wheeleri, and Fouquieria splendens, at very low cover (<10%).

Diagnostic Characteristics: No Data Available

Rationale for Nominal Species or Physiognomic Features: No Data Available

Classification Comments: This association is based on one plot at Buenos Aires National Wildlife Refuge, but observations suggest it is a disturbed version of a more common desert grassland.

Similar NVC Types: No Data Available
note: No Data Available

Physiognomy and Structure: No Data Available

Floristics: The vegetation is characterized by a moderately dense (20-50% cover) short-shrub canopy strongly dominated by Calliandra eriophylla with an open to moderately dense (20-30% cover) herbaceous layer dominated or codominated by Eragrostis lehmanniana. Other common species are Aristida spp., Bouteloua chondrosioides, Bouteloua eriopoda, Bouteloua hirsuta, Bouteloua rothrockii, Chloris virgata, Gutierrezia spp., Opuntia engelmannii, and Setaria spp. Diagnostic of this shrubland association is the strong dominance of Calliandra eriophylla in the shrub layer with 20% or more cover and Eragrostis lehmanniana in the herbaceous layer with over a third of the total perennial graminoid cover or over 25% cover. Other shrubs may be present, such as Prosopis velutina, Dasylirion wheeleri, and Fouquieria splendens, at very low cover (<10%).

Dynamics:  No Data Available

Environmental Description:  This shrubland typically occurs on gentle midslopes of ridges in southern Arizona at around 1090 m (3580 feet) elevation. Soils are well-drained sandy loam.

Geographic Range: This shrubland is found on foothills in southern Arizona and likely occurs in Sonora, Mexico.

Nations: MX?,US

States/Provinces:  AZ, MXSON?




Confidence Level: Low - Poorly Documented

Confidence Level Comments: No Data Available

Grank: GNA

Greasons: No Data Available


Concept Lineage: No Data Available

Predecessors: No Data Available

Obsolete Names: No Data Available

Obsolete Parents: No Data Available

Synonomy: = Calliandra eriophylla / Eragrostis lehmanniana Semi-natural Shrubland (Schulz 2004)

Concept Author(s): K.A. Schulz (2004)

Author of Description: K.A. Schulz

Acknowledgements: No Data Available

Version Date: 08-21-07

  • 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.
  • Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.