. . . . . . . . . "Glaucopsyche lygdamus" . . "Barbarea vulgaris" . . "Curt Lehman. 2013. Glaucopsyche lygdamus nectar plant Barbarea vulgaris. iNaturalist.org. Accessed at <https://www.inaturalist.org/observations/1414977> 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." .