| Petasites alaskanus Rydb. | Petasites frigidus (L.) Fr. trib. Senecioneae |
| Petasites alpinus (L.) Baumg. | Homogyne alpina (L.) Cass. trib. Senecioneae |
| Petasites corymbosus (R.Br.) Rydb. | Petasites frigidus (L.) Fr. trib. Senecioneae |
| Petasites discolor (Jacq.) Baumg. | Homogyne discolor (Jacq.) Cass. trib. Senecioneae |
| Petasites frigidus corymbosus (R.Br.) Cronquist | Petasites frigidus (L.) Fr. trib. Senecioneae |
| Petasites glacialis (Ledeb.) Polunin | Endocellion glaciale (Ledeb.) Toman trib. Senecioneae |
| Petasites gracilis Britton | Petasites frigidus (L.) Fr. trib. Senecioneae |
| Petasites hyperboreus Rydb. | Petasites frigidus (L.) Fr. trib. Senecioneae |
| Petasites nivalis Greene | Petasites frigidus (L.) Fr. trib. Senecioneae |
| Petasites saxatilis (Turcz.) Kom. | Petasites rubellus (J.F.Gmel.) Toman trib. Senecioneae |