10 January 1969.
Jasper County, Iowa, United States
Locality: Near Mingo approximately 1.0 mile south of large curve on highway 117, east side of road on high bank.
Coordinates: 41.7594, -93.2556
(Map it)
Elevation: 247m.
Habitat: Wild Habitat
Comment: Seeds sampled from only a few plants. Erect to 0.8m tall.