27 July 1997.
Oklahoma, United States
Locality: Cimarron County; Between Boise City, Oklahoma and Colorado border on Hwy 287. South of Cimmaron
Coordinates: 36.8728, -10.5172
(Map it)
Georeference protocol: Lat/lon determined by GPS
Environment description: Roadway, slope 0-5%. Open, loam, seasonally dry to always dry, mid slope. pH 8.1
Number of plants sampled: 30
Collector(s):