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CCDB → Angiosperms → Compositae → Cirsium → Cirsium rhizocephalum C. A. Mey.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| ! | Cirsium rhizocephalum C. A. Mey. | Cirsium rhizocephalum C. A. Mey. | 34(1) | Asteracea | Tonjan 1981b Biol. Zhurn. Armen. | ||
| ! | Cirsium rhizocephalum subsp. sinuatum (Boiss.) P. H. Davis & Parris | Cirsium rhizocephalum C. A. Mey. | 34(1) | Asteracea | Ozcan et al. 2011 Caryologia | ||
| Cirsium rhizocephalum subsp. rhizocephalum | Cirsium rhizocephalum C. A. Mey. | 34(1) | Asteracea | Ozcan et al. 2011 Caryologia | |||
| ! | Cirsium rhizocephalum C. A. Mey. | Cirsium rhizocephalum C. A. Mey. | 34 | IPCN online | Tonian, T. R. 1981b. New chromosome numbers of species of Cirsium Mill. from Armenia. Biol. Zurn. Armen. 34 (6): 641–645. (In Russian). | ||
| ! | Cirsium rhizocephalum C. A. Mey. | Cirsium rhizocephalum C. A. Mey. | 34 | IPCN73-74 | PODLECH, D., & o. BADER. 1974. Chromosomenstudien an Afghanischen Pflanzen II. Mitt. Bot. Mtinchen 11; 457-488. |