Taxonomy Masamune in Bot. Mag. Tokyo, 1930, xliv.219, et in Mem. Fac. Sc. & Agric. Taihoku Imp. Univ. xi., Bot. No. 4, 454 (1934)
Taxonomy Masamune in Bot. Mag. Tokyo, 1930, xliv.219, et in Mem. Fac. Sc. & Agric. Taihoku Imp. Univ. xi., Bot. No. 4, 454 (1934) [details]
Compositae Working Group (CWG) (2021). Global Compositae Database. Cirsium yakusimense Masam.. Accessed at: https://compositae.org/aphia.php?p=taxdetails&id=1088359 on 2024-05-01