04 December 2015.
Texas, United States
Locality: east side of Hwy 281, ~4.6 mi north of Encino, Brooks county
Coordinates: 27.0022, -98.1358
(Map it)
Elevation: 40m.
Georeference protocol: Lat/lon determined by GPS
Environment description: Grassland openings in forest, with deep, sandy soil with Quercus and Prosopis.
Comment: pop size 10000; plants up to 3.5 m tall
Collector(s):