Compositae Working Group (CWG) (2024). Global Compositae Database. Helianthus giganteus Lour.. Accessed through: Marine Species Traits editorial board (2024) Marine Species Traits at: https://www.marinespecies.org/traits./aphia.php?p=taxdetails&id=1130121 on 2024-10-02
Marine Species Traits editorial board (2024). Marine Species Traits. Helianthus giganteus Lour.. Accessed at: https://marinespecies.org/traits/aphia.php?p=taxdetails&id=1130121 on 2024-10-02