. . . . . . . . . "Nymphalis polychloros" . . "Salix" . . "fausto. 2012. Nymphalis polychloros nectar plant Salix. iNaturalist.org. Accessed at <https://www.inaturalist.org/observations/2743507> 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." .