. . . . . . . . . "Bombus fervidus" . . "Hydrophyllum virginianum" . . "Jeff Skrentny. 2015. Bombus fervidus nectar plant Hydrophyllum virginianum. iNaturalist.org. Accessed at <https://www.inaturalist.org/observations/4617100> 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." .