. . . . . . . . . "Osmia lignaria" . . "Berberis aquifolium" . . "wulindh. 2018. Osmia lignaria associated species with names lookup Berberis aquifolium. iNaturalist.org. Accessed at <https://www.inaturalist.org/observations/10212042> 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." .