30 September 2007.
Arizona, United States
Locality: Primarily east side of Highway 191/61, 7.8 miles northeast of intersection with Highway 180, Saint Johns.
Coordinates: 34.6097, -109.3206
(Map it)
Elevation: 1712m.
Georeference protocol: Lat/lon determined by GPS
Environment description: Edge of dried playa. Silty clay soil.
Number of plants sampled: 300
Comment: Population size ~2000.
Collector(s):