Parthenium integrifolium
wild quinine
Asteraceae, the aster family
Coefficient of Conservatism = 0 (adventive species)
Photo taken June 22, 2013 at OSU-Marion Prairie by Bob Klips.
Wild quinine is a species of glades, barrens, prairies and disturbed sites native to areas both to the west and the southeast of Ohio, but not Ohio itself. In T. Richard Fisher’s The Dicotyledoneae of Ohio Part 3: Asteraceae (1988; The Ohio State University Press) this species is described as being a denizen of “open woodlands and prairies, July-Oct.” Fisher only saw one Ohio specimen, from Cuyahoga County and he refers to another from Geauga, considering the species to have been extirpated.