2008.
Missouri, United States
Locality: Shaw Nature Preserve, near Gray Summit, NW 1/4 of NW 1/4 of Section 20, T43N, R2E, Gray Summit Quad, Franklin County.
Coordinates: 38.4553, -90.8239
(Map it)
Elevation: 195m.
Georeference protocol: Lat/lon determined by GPS
Environment description: Associated with Houstonia, Linum sulcatum, Rhus aromatica, Ruellia humilis, and Verbena simplex.
Collector(s):