. . . . . . . . . "Datana drexelii" . . "Hamamelis vernalis" . . "Summit Metro Parks. 2014. Datana drexelii host Hamamelis vernalis. iNaturalist.org. Accessed at <https://www.inaturalist.org/observations/841015> 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." .