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CCDB → Angiosperms → Boraginaceae → Echium → Echium tenue Roth
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Echium micranthum Schousb. | Echium tenue Roth | 16, 32 | Fedorov, 1974 | Litardiere 1943 |