15 September 2016.
Iowa, United States
Locality: Along NW 121st Street just 3.10 miles southeast of Granger, T80N R25W SW 1/4 NE 1/4 Sec. 20 Polk County.
Coordinates: 41.7266, -93.7850
(Map it)
Elevation: 245m.
Georeference protocol: Lat/Lon determined via Map location
Habitat: Wild Habitat
Environment description: Dry, roadside. Sandy soils.
Number of plants sampled: 25
Associated species: Euphorbia cyathophora, Asclepias syrica, Bromus inermis, Toxicodendron radicans, Chamaecrista fasciculata, Sorghastrum nutans, and Pastinaca sativa.
Comment: Noted approximately 30 specimens, some with foliage and others with only persistent seed heads on stems. Plants approximatley 12" in height.
Collector(s): - Carstens, Jeffrey D., USDA, ARS, NCRPIS
- Lown, Loren, Polk County Conservation Board
- Ouellette, Nickolis, USDA, ARS
- Schmitz, Andrew, The Brenton Arboretum