. . . . . . . . . "Pyrgus albescens" . . "Isocoma menziesii" . . "Rebecca Marschall. 2015. Pyrgus albescens nectar plant Isocoma menziesii. iNaturalist.org. Accessed at <https://www.inaturalist.org/observations/1782178> 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." .