11 September 2023.
Saline County, Illinois, United States
Locality: Shawnee National Forest - Stoneface Natural Resource Area located approximately 1.20 miles northeast of Somerset, T10S R7E NE 1/4 SW 1/4 SE 1/4 Sec. 9
Coordinates: 37.6611, -88.4358
(Map it)
Elevation: 205m.
Georeference protocol: Lat/lon determined by GPS
Environment description: Edge of sandstone bluff with very little soil deposition
Number of plants sampled: 1
Associated species: Ambrosia artemisifolia, Bidens bipinnata, and Toxicodendron radicans
Comment: Single plant collection resulting in acquisition of eight fruits that yielded fourteen viable (assumption based on visual observation) seeds; twenty-two aborted seeds, and one insect damaged seed. Plant under extreme stress from competition and harsh substrate/environment. Specimen sampled consisting of three stems and numerous larger, dead stems.
Collector(s):