. . . . . . . . . "Epargyreus clarus" . . "Solidago riddellii" . . "aarongunnar. 2015. Epargyreus clarus nectar plant Solidago riddellii. iNaturalist.org. Accessed at <https://www.inaturalist.org/observations/1919545> 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." .