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CCDB → Angiosperms → Compositae → Hieracium → Hieracium laevigatum subsp. rigidum (Hartm.) Čelak.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| ! | Hieracium rigidum Hartm. | Hieracium laevigatum subsp. rigidum (Hartm.) Čelak. | 27 | Fedorov, 1974 | Bergman 1941 |