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CCDB → Angiosperms → Onagraceae → Oenothera → Onagra biennis (L.) Scop.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Onagra biennis (L.) Scop. | Oenothera biennis L. | 14 | IPCN online | Probatova, N. S. & E. G. Rudyka. 1981. Chromosome numbers of some vascular plant species from the Soviet Far East. Izv. Sibirsk. Otd. Akad. Nauk SSSR, Ser. Biol. Nauk 2 (10): 77–81. |