Compositae Working Group (CWG) (2021). Global Compositae Database. Calendula officinalis var. prolifera Hort.. Accessed at: https://www.compositae.org/aphia.php?p=taxdetails&id=1231239 on 2025-02-25
Contributed data: Full Name Data only shown for fields conflicting with the consensus taxon record Calendula officinalis L. var. prolifera hort. [Preliminary Checklist of North American Compositae] [details] LSID urn:lsid:compositae.org:names:D6609723-A7FE-4F55-BE7C-74B7F1ED878E [details]