21 October 2015.
Texas, United States
Locality: south side of Hwy 277 ~18 mi northwest of Carrizo Springs, Maverick county
Coordinates: 28.6309, -100.1189
(Map it)
Elevation: 210m.
Georeference protocol: Lat/lon determined by GPS
Environment description: Grassland on banks of creek, with deep, sandy soil with Acacia and Ulmus.
Comment: pop size 100; plants up to 2.0 m tall
Collector(s):