. . . . . . . . . "Epargyreus clarus" . . "Astragalus soxmaniorum" . . "Royal Tyler. 2013. Epargyreus clarus nectar plant Astragalus soxmaniorum. iNaturalist.org. Accessed at <https://www.inaturalist.org/observations/348393> 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." .