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CCDB → Angiosperms → Onagraceae → Oenothera → Oenothera perennis L.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Oenothera perennis L. | Oenothera perennis L. | 14 | IPCN online | Tanaka, R., K. Oginuma & S. Toko. 1988. Karyomorphological studies on 26 species in ten genera of the Onagraceae. Kromosomo 51–52: 1675–1696. | |||
| Oenothera perennis L. | Oenothera perennis L. | 14 | IPCN online | Love, A. & D. Love. 1980b. In Chromosome number reports LXIX. Taxon 29: 707–709. | |||
| Oenothera perennis L. | Oenothera perennis L. | 49 | IPCN72 | KAPOOR, B.M. 1972. In IOPB chromosome number reports XXXV. Taxon 21: 161-166. | |||
| Oenothera perennis L. | Oenothera perennis L. | 7 | IPCN75-78 | Straley 1977 | |||
| ! | Oenothera perennis L. | Oenothera perennis L. | 28 | Darlington, 1955 | Valcanover 1927 |