Compositae Working Group (CWG) (2025). Global Compositae Database. Rhaponticoides fraylensis (Nyman) M.V.Agab. & Greuter. Accessed through: Marine Species Traits editorial board (2025) Marine Species Traits at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=1176606 on 2025-09-13
Marine Species Traits editorial board (2025). Marine Species Traits. Rhaponticoides fraylensis (Nyman) M.V.Agab. & Greuter. Accessed at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=1176606 on 2025-09-13