07 October 2024.
Polk County, Iowa, United States
Coordinates: 41.6528, -93.6814
(Map it)
Elevation: 244m.
Habitat: Field margin
Environment description: "Floodplain on north side of Beaver Creek, upstream of confluence with Des Moines River [IA]. Disturbed soils adjacent to an overpass. Only three individuals observed, all with female flowers (one seedless). Larger population observed in Sept 2023."
Number of plants sampled: 2
Collector(s):