. . . . . . . . . "Papilio eurymedon" . . "Penstemon centranthifolius" . . "Lynn Watson, Santa Barbara. 2009. Papilio eurymedon nectar plant Penstemon centranthifolius. iNaturalist.org. Accessed at <https://www.inaturalist.org/observations/129122> 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." .