Compositae Working Group (CWG) (2025). Global Compositae Database.
Senecio scaposus var. addoensis (Compton) G.D.Rowley. Accessed through: Marine Species Traits editorial board (2025) Marine Species Traits at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=1157888 on 2025-04-06
Marine Species Traits editorial board (2025). Marine Species Traits.
Senecio scaposus var. addoensis (Compton) G.D.Rowley. Accessed at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=1157888 on 2025-04-06