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CCDB → Angiosperms → Compositae → Petasites → Petasites japonicus (Siebold & Zucc.) Maxim.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| ! | Petasites japonicus (Siebold & Zucc.) Maxim. | Petasites japonicus (Siebold & Zucc.) Maxim. | 60 | flora of NW Europe | http://wbd.etibioinformatics.nl/bis/flora.php?selected=beschrijving&menuentry=soorten&id=4112 | ||
| ! | Petasites japonicus (Siebold & Zucc.) Maxim. | Petasites japonicus (Siebold & Zucc.) Maxim. | 84-87 | Flora Europaea | S^rensen & | ||
| ! | Petasites japonicus (Siebold & Zucc.) Maxim. | Petasites japonicus (Siebold & Zucc.) Maxim. | 87(1) | Asteracea | Yamamoto 1931 The study on the plant chromosomes (Shockubutsu Senshokutaisu no Kenkyu (Tokyo)) | ||
| Petasites japonicus subsp. japonicus | Petasites japonicus (Siebold & Zucc.) Maxim. | 58(1) | Asteracea | Koyama 1966a Acta Phytotax. Geobot. | |||
| ! | Petasites japonicus var. japonicus | Petasites japonicus (Siebold & Zucc.) Maxim. | 87(25) | Asteracea | Imazu ＆ F. 1962 J. Hort. Soc. Japan (= Hort. Sci.) | ||
| ! | Petasites japonicus var. japonicus | Petasites japonicus (Siebold & Zucc.) Maxim. | 87(20) | Asteracea | Imazu ＆ F. 1962 J. Hort. Soc. Japan (= Hort. Sci.) | ||
| ! | Petasites japonicus (Siebold & Zucc.) Maxim. | Petasites japonicus (Siebold & Zucc.) Maxim. | 87 + 3, 84-87 | IPCN65 | Sorensen & C.1964 | ||
| ! | Petasites japonicus (Siebold & Zucc.) Maxim. | Petasites japonicus (Siebold & Zucc.) Maxim. | 60 | IPCN online | Funamoto, T., H. YUASA & F. Maekawa. 1981. Karyotype of Petasites japonicus var. giganteus (dwarf) in Usu volcanic zone. Kromosomo 23: 676–681. | ||
| ! | Petasites japonicus (Siebold & Zucc.) Maxim. | Petasites japonicus (Siebold & Zucc.) Maxim. | 87 | Darlington, 1955 | Yamamoto, " K. 1931 |