07 June 2018.
Missouri, United States
Locality: Washington University Tyson Research Center, northeast of Eureka
Coordinates: 38.5273, -90.5602
(Map it)
Elevation: 162m.
Georeference protocol: Lat/lon determined by GPS
Environment description: weedy outskirts of research plots
Comment: very thick strands, hundreds of individuals
Collector(s):