05 June 1986.
Texas, United States
Locality: Along Highway FM51, Cooke County.
Coordinates: 33.4522, -97.2897
(Map it)
Elevation: 259m.
Environment description: Roadside ditch. 1% slope with a southern exposure. Slidell-San Saba soil. Average annual precipitation of 35 inches. Associated with Johnson grass.
Comment: Collected from >6 plants.
Collector(s):