. . . . . . . . . "Calypte costae" . . "Penstemon eatonii" . . "Greg Lasley. 2009. Calypte costae pollinates Penstemon eatonii. iNaturalist.org. Accessed at <https://www.inaturalist.org/observations/176431> 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." .