05 November 2015.
Arizona, United States
Locality: west side of I-19 exit 22, Rio Roco Northwest, Santa Cruz county
Coordinates: 31.5081, -111.0127
(Map it)
Elevation: 1030m.
Georeference protocol: Lat/lon determined by GPS
Environment description: Desert scrub and herbaceous roadside vegetation on flat, with deep soil derived from granite with Sambucus, Conyza, and Celtis.
Comment: pop size 1000; plants up to 4.0 m tall
Collector(s):