17 September 1979.
Arizona, United States
Locality: Along I-10, 2 miles south of Tonopah, Maricopa County.
Coordinates: 33.4936, -112.9364
(Map it)
Georeference protocol: Lat/Lon determined from GIS
Environment description: Collected at end of dry wash.
Comment: No bottom branching on plants. Lat/lon accurate to Tonopah.
Collector(s):