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CCDB → Angiosperms → Apiaceae → Ferula → Ferula olgae Regel & Schmalh.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Ferula olgae Regel & Schmalh. | Ferula penninervis Regel & Schmalh. | 22 | IPCN online | Soloviova, N. M., M. G. Vasilieva, M. G. Pimenov, V. D. Turkov & N. N. Zhigareva. 1982. Karyosystematic study of the genus Ferula (Umbelliferae). Bot. Žhurn. (Moscow & Leningrad) 67 (9): 1228–1237. | |||
| Ferula olgae Regel & Schmalh. | Ferula penninervis Regel & Schmalh. | 22 | IPCN online | Retina, T. A. & M. G. Pimenov. 1977. Chromosome numbers in species of the family Umbelliferae of middle Asia. Naucn. Dokl. Vyss. Shkoly, Biol. Nauki 7: 90–95. |