Compositae Working Group (CWG) (2021). Global Compositae Database. Sphaeranthus calcareus Robyns. Accessed at: https://www.compositae.org/aphia.php?p=taxdetails&id=1198113 on 2025-04-04
Contributed data: Published Data only shown for fields conflicting with the consensus taxon record Kew Bull. 1924, 192. [African Plant Database] [details] LSID urn:lsid:compositae.org:names:7CDAE5AA-0980-4B93-9707-ABD8342B2651 [details] Taxonomy ori:FSA-FTA [details]