21 September 1996.
Iowa, United States
Locality: Sleepy Hollow Boat Access on Skunk River north of Ames, Section 23, Franklin township, T84N, R24W, Ames East Quad, Story County.
Coordinates: 42.0667, -93.6167
(Map it)
Elevation: 274m.
Number of plants sampled: 40
Comment: Pop 13.
Collector(s):