02 March 2005.
Arizona, United States
Locality: Yuma Marine Corps Air Station (escort required), active dune area, 0.1 mile north of Monument 198 (rocky outcrop), 0.3 mile north of Mexican border, Yuma County.
Coordinates: 32.3825, -114.4272
(Map it)
Elevation: 122m.
Georeference protocol: Lat/lon determined by GPS
Environment description: Active sand dunes.
Number of plants sampled: 150
Comment: Population size 1000.
Collector(s):