. . . . . . . . . "Pieris rapae" . . "Eurybia" . . "roy pilcher. 2014. Pieris rapae nectar plant Eurybia. iNaturalist.org. Accessed at <https://www.inaturalist.org/observations/898256> 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." .