. . . . . . . . . "Agapostemon virescens" . . "Physostegia virginiana" . . "christine123. 2017. Agapostemon virescens nectar plant Physostegia virginiana. iNaturalist.org. Accessed at <https://www.inaturalist.org/observations/7667644> 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." .