12 October 2008.
Illinois, United States
Locality: Along E. Herrin Road, west of Interstate 57 exit, N edge of NW 1/4 of NE 1/4 of Section 23, T8S, R2E, Johnston City Quad, Williamson County.
Coordinates: 37.8169, -88.9497
(Map it)
Elevation: 120m.
Georeference protocol: Lat/lon determined by GPS
Number of plants sampled: 11
Associated species: Fraxinus americana, Phragmites, Platanus occidentalis, Salix, Ulmus rubra, and Morus alba.
Comment: Vouchered specimen #7 due to its extreme tomentose stems and very large seeds.
Collector(s):