. . . . . . . . . "Satyrium behrii" . . "Achillea millefolium" . . "Will Richardson. 2007. Satyrium behrii nectar plant Achillea millefolium. iNaturalist.org. Accessed at <https://www.inaturalist.org/observations/9196706> 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." .