. . . . . . . . . "Ramularia rubella" . . "Rumex obtusifolius" . . "Peter de Lange. 2017. Ramularia rubella host Rumex obtusifolius. iNaturalist.org. Accessed at <https://www.inaturalist.org/observations/8083892> 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." .