Compositae Working Group (CWG) (2024). Global Compositae Database. Sphaeranthus bullatus Mattf.. Accessed at: https://www.compositae.org/gcd/aphia.php?p=taxdetails&id=1098807 on 2025-03-25
Contributed data: Published Data only shown for fields conflicting with the consensus taxon record Notizbl. Bot. Gart. Berlin, xiii. 290 (1936). [African Plant Database] Notizblatt des Botanischen Gartens und Museums zu Berlin-Dahlem 13: [Tropicos] [details] LSID urn:lsid:compositae.org:names:60A88372-B57C-4607-BF7C-7CD0A2875922 [details] Taxonomy ori:FTA [details]