Compositae Working Group (CWG) (2024). Global Compositae Database.
Sonchus alpestris [Clairv.]. Accessed through: Marine Species Traits editorial board (2024) Marine Species Traits at: https://marinespecies.org/traits/aphia.php?p=taxdetails&id=1118054 on 2024-11-30
Marine Species Traits editorial board (2024). Marine Species Traits.
Sonchus alpestris [Clairv.]. Accessed at: https://marinespecies.org/traits/aphia.php?p=taxdetails&id=1118054 on 2024-11-30