Collected
27 September 2006.
United States
Elevation: 1200m.
Environment description: Slope: 0 Aspect: All Soil: Sand, Land form: Plains.
Number of plants sampled: 560
Comment: Collectors:Johnson, J., Aquino, J.F. : BLM: Arizona State Office, USA Semi desert grassland. Associated with Prosopis sp., Celtis laevigata var reticulata, Eragrostis lehmanniana, Rumex sp., Proboscidea sp., Ipomea sp., Aristida sp., Mimosa aculeaticarpa var. biuncifera.