| canada | british columbia | petasites frigidus | species | 2 | 0 |
| canada | northwest territories | petasites frigidus subsp. frigidus | subspecies | 12 | 0 |
| canada | nunavut | petasites frigidus subsp. frigidus | subspecies | 2 | 0 |
| canada | nunavut | petasites frigidus var. sagittatus | varietas | 3 | 0 |
| canada | ontario | petasites frigidus | species | 3 | 0 |
| canada | yukon | petasites frigidus var. sagittatus | varietas | 2 | 0 |