. . . . . . . . . "Danaus plexippus" . . "Asclepias tuberosa" . . "fm5050. 2014. Danaus plexippus nectar plant Asclepias tuberosa. iNaturalist.org. Accessed at <https://www.inaturalist.org/observations/833747> 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." .