06 November 2015.
Arizona, United States
Locality: north side of East Hereford Rd, east of the San Pedro River, southeast of Sierra Vista, Cochise county
Coordinates: 31.4400, -110.1054
(Map it)
Elevation: 1275m.
Georeference protocol: Lat/lon determined by GPS
Environment description: Grassland on flat, with deep soil derived from alluvium with Prosopis.
Comment: pop size 100000; plants up to 4.0 m tall
Collector(s):