. . . . . . . . . "Clematis vitalba" . . "Hedera helix" . . "Gordon Somerville. 2016. Clematis vitalba associated species with names lookup Hedera helix. iNaturalist.org. Accessed at <https://www.inaturalist.org/observations/3335224> 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." .