United States, Illinois, Peoria, McClugage Bridge Boltonia decurrens population census - west side of river.
40.7221 -89.5523
Moist to dry, gravelly area between north and south bridges and under north bridge. Associates include: Ambrosia artemisiifolia, Aster lanceolatus, Atriplex patula, Bidens connata, Boltonia decurrens, Echinochloa muricata, Ipomoea lacunosa, Kochia scoparia, Morus alba, Panicum dichotomiflorum, Polygonum pensylvanicum, P. persicaria, Samolus valerandii, and Setaria faberi.