. . . . . . . . . "Euchloe ausonides" . . "Carduus pycnocephalus" . . "Coty Sifuentes-Winter. 2014. Euchloe ausonides nectar plant Carduus pycnocephalus. iNaturalist.org. Accessed at <https://www.inaturalist.org/observations/607935> 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." .