. . . . . . . . . "Zizula cyna" . . "Bidens" . . "Anne. 2013. Zizula cyna nectar plant Bidens. iNaturalist.org. Accessed at <https://www.inaturalist.org/observations/265898> 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." .