27 August 2013.
California, United States
Locality: North side of Copco Road, approximately 1.5 miles east of Interstate 5, southeast of Hornbrook, Siskiyou County.
Coordinates: 41.8978, -122.5340
(Map it)
Elevation: 648m.
Georeference protocol: Lat/lon determined by GPS
Number of plants sampled: 100
Collector(s):