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CCDB → Angiosperms → Compositae → Ptarmica → Ptarmica macrocephala (Rupr.) Kom.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Ptarmica macrocephala (Rupr.) Kom. | Ptarmica macrocephala (Rupr.) Kom. | 18 | IPCN online | Probatova. 2004. Chromosome numbers of selected vascular plant species from Sakhalin, Moneron and the Kurile Islands. Biodivers. Biogeogr. Kuril Islands Sakhalin 1: 15–23. | |||
| ! | Ptarmica macrocephala (Rupr.) Kom. | Ptarmica macrocephala (Rupr.) Kom. | 18 | Cave1963 | Sokolovskaya 1963 |