Pelargonium im Germplasm Resources Information Network (GRIN), USDA, ARS, National Genetic Resources Program. National Germplasm Resources Laboratory, Beltsville, Maryland.
biodiversitylibrary.org
William Aiton: Hortus Kewensis; or, a Catalogue of the Plants Cultivated in the Royal Botanic Garden at Kew. Band 2, London 1789, S. 417 (eingescannt bei biodiversitylibrary.org).