. . . . . . . . . "Phyciodes tharos" . . "Polygonum pensylvanicum" . . "ellen hildebrandt. 2016. Phyciodes tharos nectar plant Polygonum pensylvanicum. iNaturalist.org. Accessed at <https://www.inaturalist.org/observations/3625886> 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." .