29 September 2009.
Kansas, United States
Locality: Northwest side of Highways 9 and 15, southwest of intersection with Prairie Road, about a mile north of Linn, Washington County.
Coordinates: 39.6886, -97.0703
(Map it)
Elevation: 442m.
Environment description: Grassy, level area between highway and abandoned railroad. Delineated x laetiflorus patch with pauciflorus on either side.
Collector(s):