Collected
23 May 2005.
Arizona, United States
Elevation: 622m.
Georeference protocol: Lat/lon determined by GPS
Environment description: Slope: 20-40 degrees. Greyish-tan soil.
Number of plants sampled: 955
Comment: Collected by Bureau of Land Management, USA. Sonoran desert scrub, Arizona upland. Associated with Canotia holacantha, Dodonaea viscosa, Opuntia sp., Calliandra eriophylla, Fouquieria splendens, Yucca elata, Simmondsia chinensis, Aristida purpurea, Linus lewisii.