Collected
26 April 2005.
Arizona, United States
Elevation: 879m.
Georeference protocol: Lat/lon determined by GPS
Environment description: Tan soil.
Number of plants sampled: 110
Comment: Collected by Bureau of Land Management, USA. Sonoran desert scrub, Arizona upland. Associated with Parkinsonia sp., Prosopis sp., Carnegiea gigantea, Fouquieria splendens, Cylindropuntia sp., Encelia farinosa, Ambrosia deltoidea, Acamptopappus sphaerocephalus, Thamnosma montana.