Compositae Working Group (CWG) (2021). Global Compositae Database. Suprago sphaerocephala Cass.. Accessed at: https://www.compositae.org/aphia.php?p=taxdetails&id=1209587 on 2025-03-16
Contributed data: Published Data only shown for fields conflicting with the consensus taxon record Dict. Sci. Nat. 51: 386. 1827. [Robinson Eupatorieae] Dictionnaire des Sciences Naturelles [Second edition] 51: [Tropicos] [details] LSID urn:lsid:compositae.org:names:508EC106-8233-45C4-B2F6-EA3697C0589D [details] Taxonomy Dec 1827 [details]