. . . . . . . . . "Papilio glaucus" . . "Vernonia missurica" . . "Mark Kluge. 2016. Papilio glaucus nectar plant Vernonia missurica. iNaturalist.org. Accessed at <https://www.inaturalist.org/observations/3832406> on 05 Apr 2018." . . . . "http://iNaturalist.org is a place where you can record what you see in nature, meet other nature lovers, and learn about the natural world." .