14 September 2011.
Alabama, United States
Locality: Dallas County, US 80 at Marion Junction, AL. west of CR 45
Coordinates: 32.4430, -87.2203
(Map it)
Elevation: 73m.
Georeference protocol: Lat/lon determined by GPS
Environment description: 100,000+ plants found, 100,000m
2 site size, open level johnsongrass fields spreading along roadside, large abundant uniform population
Number of plants sampled: 500
Collector(s):