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CCDB → Angiosperms → Boraginaceae → Echium → Echium nervosum Dryand.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Echium nervosum Dryand. | Echium nervosum Dryand. | 16 | IPCN online | Dalgaard, V. 1991. Chromosome studies in flowering plants from Macaronesia II. Willdenowia 20: 139–152. |