. . . . . . . . . "Pontia beckerii" . . "Astereae" . . "Bill Nownes. 2016. Pontia beckerii associated species with names lookup Astereae. iNaturalist.org. Accessed at <https://www.inaturalist.org/observations/4372878> 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." .