World Register of Marine Species (WoRMS)
Compositae Working Group (CWG) (2026). Global Compositae Database. Gymnanthemum humblotii (Drake) H.Rob.. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=1114789 on 2026-08-30
Harold Robinson. (1999). Revisions in paleotropical Vernonieae (Asteraceae). Proceedings of the Biological Society of Washington.
Humbert, Jean - Henri. (1948). Contribution a l'étude de la flore de Madagascar et des Comores (Fascicule 4). Notulae Systematicae. 13: 311.