. . . . . . . . . "Papilio machaon" . . "Vitex agnus-castus" . . "Jakob Fahr. 2016. Papilio machaon nectar plant Vitex agnus-castus. iNaturalist.org. Accessed at <https://www.inaturalist.org/observations/4923329> 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." .