World Register of Marine Species (WoRMS)
Cirsium rhinoceros f. albiflorum Sakata & Nakai
Compositae Working Group (CWG) (2026). Global Compositae Database. Cirsium rhinoceros f. albiflorum Sakata & Nakai. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=1159060 on 2026-08-30