. . . . . . . . . "Bombus ephippiatus" . . "Penstemon gentianoides" . . "Bodo. 2017. Bombus ephippiatus nectar plant Penstemon gentianoides. iNaturalist.org. Accessed at <https://www.inaturalist.org/observations/8553660> 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." .