19 September 2006.
Iowa, United States
Locality: 150 yards west of boat ramp, west side of dam, Don Williams County Park, SW 1/4 of NE 1/4 of SW 1/4 of Section 5, T84N, R27W, Yell Township, Boone County.
Coordinates: 42.1119, -94.0214
(Map it)
Elevation: 313m.
Environment description: Open, grassy hilltop and hillside. Partial-full sun. Dry-moist soil.
Associated species: Ambrosia artemisiifolia, Aster ericoides, A. pilosus, Bouteloua curtipendula, Brickellia eupatorioides, Bromus inermis, Lespedeza capitata, Muhlenbergia racemosa, Onosmodium molle, Schizachyrium scoparium, Solidago canadensis, S. rigida, S. ulmifolia, and Sporobolus compositus.
Collector(s):