. . . . . . . . . "Coleosporium tussilaginis" . . "Senecio esleri" . . "Jon Sullivan. 2015. Coleosporium tussilaginis associated species with names lookup Senecio esleri. iNaturalist.org. Accessed at <https://www.inaturalist.org/observations/1701952> 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." .