| Name | Hieracium rydbergii K. H. Zahn |
| Authorship | K. H. Zahn |
| Rank | Species |
| Placed in | Hieracium Linnaeus |
| Citation | 1922 Pflanzenr. [Engler] 79[IV,280]: 1130 |
| Holdings | 4 Specimens held in the Harvard University Herbaria identified as Hieracium rydbergii K. H. Zahn |
| Identification made in | [no date] (4) |
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