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CCDB → Angiosperms → Compositae → Petasites → Petasites japonicus subsp. giganteus F. Schmidt ex Kitam.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Petasites amplus Kitam. | Petasites japonicus subsp. giganteus F. Schmidt ex Kitam. | 60+0-7Bs(9) | Asteracea | Funamoto et al. 1981 La Kromosomo II. | |||
| ! | Petasites japonicus var. giganteus F. Schmidt ex Makino | Petasites japonicus subsp. giganteus F. Schmidt ex Kitam. | 58(10) | Asteracea | Imazu ＆ F. 1962 J. Hort. Soc. Japan (= Hort. Sci.) | ||
| ! | Petasites japonicus var. giganteus F. Schmidt ex Makino | Petasites japonicus subsp. giganteus F. Schmidt ex Kitam. | 58, 87(5, 5) | Asteracea | Imazu ＆ F. 1962 J. Hort. Soc. Japan (= Hort. Sci.) | ||
| Petasites amplus Kitam. | Petasites japonicus subsp. giganteus F. Schmidt ex Kitam. | 60(1) | Asteracea | Probatova et al. 2000 Nat. Hist. Res. (Chiba, Japan). | |||
| ! | Petasites japonicus subsp. giganteus F. Schmidt ex Kitam. | Petasites japonicus subsp. giganteus F. Schmidt ex Kitam. | 60(1) | Asteracea | Nishikawa 1990 J. Hokkaido Univ. Educ. Sect. 2B | ||
| ! | Petasites amplus Kitam. | Petasites japonicus subsp. giganteus F. Schmidt ex Kitam. | c.60 | IPCN65 | Sokolovskaya 196i | ||
| ! | Petasites japonicus var. giganteus F. Schmidt ex Makino | Petasites japonicus subsp. giganteus F. Schmidt ex Kitam. | 60, 67 (60+7B) | 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 subsp. giganteus F. Schmidt ex Kitam. | Petasites japonicus subsp. giganteus F. Schmidt ex Kitam. | 60 | IPCN online | Nishikawa, T. 1990. Chromosome counts of flowering plants of Hokkaido (13). J. Hokkaido Univ. Educ., Sect. 2B 40: 19–30. | ||
| Petasites amplus Kitam. | Petasites japonicus subsp. giganteus F. Schmidt ex Kitam. | ~60 | Fedorov, 1974 | CoJWJIOBCKaH 1960a, 6, Ph | |||
| Petasites amplus Kitam. | Petasites japonicus subsp. giganteus F. Schmidt ex Kitam. | 87 | Fedorov, 1974 | Funabiki 1958b |