03 March 2005.
Arizona, United States
Locality: Both sides of Camino del Diablo to 0.25 mile north, Pinta Sands, Cabeza Prieta National Wildlife Refuge, 13 miles west of Yuma/Pima County line, Yuma County.
Coordinates: 32.1275, -113.5553
(Map it)
Elevation: 238m.
Georeference protocol: Lat/lon determined by GPS
Environment description: Sandy.
Number of plants sampled: 150
Comment: Population size 2000.
Collector(s):