Compositae Working Group (CWG) (2025). Global Compositae Database.
Riencourtia oblongifolia var. angustifolia (Gardner) Baker. Accessed through: Marine Species Traits editorial board (2025) Marine Species Traits at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=1162485 on 2025-06-01
Marine Species Traits editorial board (2025). Marine Species Traits.
Riencourtia oblongifolia var. angustifolia (Gardner) Baker. Accessed at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=1162485 on 2025-06-01