. . . . . . . . . "Speyeria atlantis" . . "Cirsium" . . "roy pilcher. 2014. Speyeria atlantis nectar plant Cirsium. iNaturalist.org. Accessed at <https://www.inaturalist.org/observations/812202> 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." .