. . . . . . . . . "Usnea rubicunda" . . "Baccharis pilularis" . . "Ken-ichi Ueda. 2016. Usnea rubicunda growing on organism Baccharis pilularis. iNaturalist.org. Accessed at <https://www.inaturalist.org/observations/4492401> 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." .