Compositae Working Group (CWG) (2025). Global Compositae Database. Vernonia graniticola G.V.Pope. Accessed through: Marine Species Traits editorial board (2025) Marine Species Traits at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=1096015 on 2025-03-24
Marine Species Traits editorial board (2025). Marine Species Traits. Vernonia graniticola G.V.Pope. Accessed at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=1096015 on 2025-03-24