Compositae Working Group (CWG) (2025). Global Compositae Database.
Carlina oligocephala subsp. oligocephala Boiss. & Kotschy. Accessed through: Marine Species Traits editorial board (2025) Marine Species Traits at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=1151222 on 2025-03-14
Marine Species Traits editorial board (2025). Marine Species Traits.
Carlina oligocephala subsp. oligocephala Boiss. & Kotschy. Accessed at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=1151222 on 2025-03-14