. . . . . . . . . "Orobanche vallicola" . . "Sambucus nigra" . . "Jon Sullivan. 2015. Orobanche vallicola interaction->hemiparasite of Sambucus nigra. iNaturalist.org. Accessed at <https://www.inaturalist.org/observations/1911925> 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." .