28 November 2015.
Texas, United States
Locality: immediately north of Packery Channel, near boat launch south of Zahn Rd, east of Hwy 361, Mustang Island, Nueces county
Coordinates: 27.6182, -97.2118
(Map it)
Elevation: 3m.
Georeference protocol: Lat/lon determined by GPS
Environment description: Maritime grassland on flat, with deep, sandy soil with Croton and Ambrosia.
Comment: pop size 10000; plants up to 4.0 m tall
Collector(s):