Herbarium Blackwellianum emendatum et auctum, id est, Elisabethae Blackwell collectio stirpium.Norimbergae : Typis Io. Iosephi Fleischmanni, 1750-1773..biodiversitylibrary.org/page/291497
close up image of Cichorium intybus CHICORY at the James Woodworth Prairie Preserve - two full bloomsThis is an invasive, non-native species at the Peacock/Woodworth Prairie.