Compositae Working Group (CWG) (2024). Global Compositae Database.
Heliopsis canescens D.Don. Accessed through: Marine Species Traits editorial board (2024) Marine Species Traits at: https://marinespecies.org/traits/aphia.php?p=taxdetails&id=1117943 on 2025-01-05
Marine Species Traits editorial board (2025). Marine Species Traits.
Heliopsis canescens D.Don. Accessed at: https://marinespecies.org/traits/aphia.php?p=taxdetails&id=1117943 on 2025-01-05