| Name | Hieracium floribundum subsp. hylaeophilum Zahn & Petrak |
| Authorship | Zahn & Petrak |
| Rank | Subspecies |
| NomenclaturalStatus | NomLeg |
| Placed in | Hieracium ×floribundum Wimmer & Grabowski |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Hieracium floribundum subsp. hylaeophilum Zahn & Petrak |
| Identification made in | [no date] (1) |