. . . . . . . . . "Colias eurytheme" . . "Medicago" . . "Chuck Sexton. 2017. Colias eurytheme insect host plant Medicago. iNaturalist.org. Accessed at <https://www.inaturalist.org/observations/5393715> 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." .