. . . . . . . . . "Danaus plexippus" . . "Aster" . . "christine123. 2016. Danaus plexippus nectar plant Aster. iNaturalist.org. Accessed at <https://www.inaturalist.org/observations/6224687> 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." .