. . . . . . . . . "Papilio machaon" . . "Cakile maritima" . . "Duarte Frade. 2016. Papilio machaon observed species association: pollination Cakile maritima. iNaturalist.org. Accessed at <https://www.inaturalist.org/observations/3793995> 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." .