. . . . . . . . . "Asterocampa clyton" . . "Calyptocarpus vialis" . . "Stephanie Marsh. 2013. Asterocampa clyton nectar plant Calyptocarpus vialis. iNaturalist.org. Accessed at <https://www.inaturalist.org/observations/446406> 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." .