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CCDB → Angiosperms → Compositae → Petasites → Petasites tomentosus DC.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Petasites tomentosus DC. | Petasites tomentosus DC. | 60(1) | Asteracea | Tischler 1938 Tabul. Biol. Periodicae | |||
| ! | Petasites tomentosus DC. | Petasites tomentosus DC. | 60 | Fedorov, 1974 | Langlet (T. 1938) |