Compositae Working Group (CWG) (2024). Global Compositae Database. Cirsium verutum (D.Don) Spreng.. Accessed through: Marine Species Traits editorial board (2024) Marine Species Traits at: https://marinespecies.org/traits/aphia.php?p=taxdetails&id=1095545 on 2025-03-14
Marine Species Traits editorial board (2025). Marine Species Traits. Cirsium verutum (D.Don) Spreng.. Accessed at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=1095545 on 2025-03-14