| Petasites albus (L.) Gaertn. |
Accepted |
30 |
| Petasites fominii Bordz. |
Accepted |
16 |
| Petasites formosanus Kitam. |
Accepted |
30 |
| Petasites fragrans (Vill.) C. Presl |
Accepted |
30 |
| Petasites frigidus (L.) Fr. |
Accepted |
30 |
| Petasites frigidus var. palmatus (Aiton) Cronquist |
Accepted |
30 |
| Petasites hybridus (L.) G. Gaertn. & B. Mey. & Scherb. |
Accepted |
30 |
| Petasites japonicus (Siebold & Zucc.) Maxim. |
Accepted |
30 |
| Petasites japonicus subsp. giganteus F. Schmidt ex Kitam. |
Accepted |
30 |
| Petasites kablikianus Tausch ex Bercht. |
Accepted |
30 |
| Petasites paradoxus (Retz.) Baumg. |
Accepted |
30 |
| Petasites radiatus (J. F. Gmel.) J. Toman |
Accepted |
30 |
| Petasites rubellus (J. F. Gmel.) Toman |
Accepted |
30 |
| Petasites saxatilis (Turcz.) Kom. |
Accepted |
60 |
| Petasites spurius (Retz.) Rchb. |
Accepted |
30 |
| Petasites tricholobus Franch. |
Accepted |
30 |
| Petasites frigidus Macoun |
Unresolved |
30 |
| Petasites frigidus var. sagittatus (Pursh) Cherniawsky & R. J. Bayer |
Unresolved |
30 |
| Petasites tomentosus DC. |
Unresolved |
30 |
| Petasites glacialis (Ledeb.) Polunin |
Synonym of Endocellion glaciale (Ledeb.) Toman |
30 |
| Nardosmia angulosa Cass. |
Synonym of Petasites frigidus (L.) Fr. |
30 |
| Nardosmia frigida (L.) Hook. |
Synonym of Petasites frigidus (L.) Fr. |
30 |
| Petasites frigidus (L.) Fries |
Synonym of Petasites frigidus (L.) Fr. |
30 |
| Petasites frigidus subsp. frigidus |
Synonym of Petasites frigidus (L.) Fr. |
30 |
| Petasites frigidus var. frigidus |
Synonym of Petasites frigidus (L.) Fr. |
30 |
| Petasites vitifolius Greene |
Synonym of Petasites frigidus var. X (Greene) Cherniawsky & R. J. Bayer |
30 |
| Nardosmia palmata (Aiton) Hook. |
Synonym of Petasites frigidus var. palmatus (Aiton) Cronquist |
30 |
| Petasites palmatus (Aiton) A. Gray |
Synonym of Petasites frigidus var. palmatus (Aiton) Cronquist |
30 |
| Petasites sagittatus (Banks) A. Gray |
Synonym of Petasites frigidus var. sagittatus (Banks) Chern. |
30 |
| Nardosmia vitifolia (Greene) Á. Löve & D. Löve |
Synonym of Petasites frigidus var. vitifolius (Greene) Chern. |
30 |
| Petasites frigidus var. vitifolius |
Synonym of Petasites frigidus var. vitifolius (Greene) Chern. |
30 |
| Petasites warrenii H. S. John |
Synonym of Petasites frigidus var. vitifolius (Greene) Chern. |
30 |
| Petasites warrenii H. S. John |
Synonym of Petasites frigidus var. vitifolius (Greene) Chern. |
30 |
| Petasites × vitifolius Greene |
Synonym of Petasites frigidus var. vitifolius (Greene) Chern. |
30 |
| Petasites hybridus |
Synonym of Petasites hybridus (L.) G. Gaertn. & B. Mey. & Scherb. |
30 |
| Petasites hybridus (L.) Gaertn. |
Synonym of Petasites hybridus (L.) G. Gaertn. & B. Mey. & Scherb. |
30 |
| Petasites officinalis Moench |
Synonym of Petasites hybridus (L.) G. Gaertn. & B. Mey. & Scherb. |
30 |
| Petasites ovatus Hill |
Synonym of Petasites hybridus (L.) G. Gaertn. & B. Mey. & Scherb. |
30 |
| Petasites japonicus subsp. japonicus |
Synonym of Petasites japonicus (Siebold & Zucc.) Maxim. |
30 |
| Petasites japonicus var. japonicus |
Synonym of Petasites japonicus (Siebold & Zucc.) Maxim. |
30 |
| Petasites amplus Kitam. |
Synonym of Petasites japonicus subsp. giganteus F. Schmidt ex Kitam. |
30 |
| Petasites japonicus var. giganteus F. Schmidt ex Makino |
Synonym of Petasites japonicus subsp. giganteus F. Schmidt ex Kitam. |
30 |
| Petasites niveus (Vill.) Baumg. |
Synonym of Petasites paradoxus (Retz.) Baumg. |
30 |
| Nardosmia laevigata (Willd.) DC. |
Synonym of Petasites radiatus (J. F. Gmel.) J. Toman |
30 |
| Petasites laevigatus (Willd.) Rchb. |
Synonym of Petasites radiatus (J. F. Gmel.) J. Toman |
30 |
| Nardosmia saxatilis Turcz. |
Synonym of Petasites rubellus (J. F. Gmel.) Toman |
30 |
| Endocellion sibiricum (J. F. Gmel.) Toman |
Synonym of Petasites sibiricus (J. F. Gmel.) Dingwall |
30 |
| Nardosmia gmelinii Turcz. ex DC. |
Synonym of Petasites sibiricus (J. F. Gmel.) Dingwall |
30 |
| Petasites gmelinii (Turcz.) Polunin |
Synonym of Petasites sibiricus (J. F. Gmel.) Dingwall |
30 |