12 October 1980.
Louisiana, United States
Locality: Highway 435, 1 mile east of Abita Springs.
Coordinates: 30.4667, -90.0333
(Map it)
Georeference protocol: Lat/Lon determined via Map location
Environment description: Sandy roadside ditch.
Number of plants sampled: 40
Comment: Large population, one plant had few, very short ray flowers. Lat/lon accurate to city level.
Collector(s):