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CCDB → Angiosperms → Boraginaceae → Onosma → Onosma helvetica Boiss.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| ! | Onosma helvetica Boiss. | Onosma helvetica Boiss. | 14 | 28 | CHROBASE | FAVARGER C. - 1971. Recherches cytologiques sur quelques Onosma d'Europe occidentale.. Ann. Naturhist. Mus. Wien , 75: 59-65. | |
| ! | Onosma helvetica Boiss. | Onosma helvetica Boiss. | 26 28 | Flora Europaea | Grau, 1964a | ||
| ! | Onosma helvetica Boiss. | Onosma helvetica Boiss. | 14 | 28 | IPCN67-71 | FAVARGER, C. 1971. In IOPB chromosome number reports XXXII. Taxon 20: 349-356. |