Compositae Working Group (CWG) (2025). Global Compositae Database.
Pyrrocoma racemosa var. sessiliflora (Greene) Mayes ex G.K.Br. & D.J.Keil. Accessed through: Marine Species Traits editorial board (2025) Marine Species Traits at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=1157329 on 2025-03-13
Marine Species Traits editorial board (2025). Marine Species Traits.
Pyrrocoma racemosa var. sessiliflora (Greene) Mayes ex G.K.Br. & D.J.Keil. Accessed at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=1157329 on 2025-03-13