. . . . . . . . . "Pieris marginalis" . . "Claytonia sibirica" . . "Kathleen Sayce. 2016. Pieris marginalis associated species with names lookup Claytonia sibirica. iNaturalist.org. Accessed at <https://www.inaturalist.org/observations/3407031> 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." .