06 November 2015.
Arizona, United States
Locality: west side of Hwy 92, just north of jct with East Mandan Drive, Sierra Vista, Cochise county
Coordinates: 31.4759, -110.2576
(Map it)
Elevation: 1440m.
Georeference protocol: Lat/lon determined by GPS
Environment description: Grassland on gentle, E-facing slope and roadside ditch, with rocky soil derived from volcanic parent material with Salsola, Prosopis, and Baccharis.
Comment: pop size 10000; plants up to 2.0 m tall
Collector(s):