Compositae Working Group (CWG) (2024). Global Compositae Database.
Helianthus debilis subsp. silvestris Heiser. Accessed through: Marine Species Traits editorial board (2024) Marine Species Traits at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=1152540 on 2024-10-20
Marine Species Traits editorial board (2024). Marine Species Traits.
Helianthus debilis subsp. silvestris Heiser. Accessed at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=1152540 on 2024-10-20