. . . . . . . . . "Bombus impatiens" . . "Solidago caesia" . . "Charlie Hohn. 2015. Bombus impatiens nectar plant Solidago caesia. iNaturalist.org. Accessed at <https://www.inaturalist.org/observations/2100765> 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." .