. . . . . . . . . "Fraxinus nigra" . . "Onoclea sensibilis" . . "Charlie Hohn. 2016. Fraxinus nigra associated species with names lookup Onoclea sensibilis. iNaturalist.org. Accessed at <https://www.inaturalist.org/observations/4200338> 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." .