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CCDB → Angiosperms → Orobanchaceae → Euphrasia → Euphrasia occidentalis Wettst.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| ! | Euphrasia occidentalis Wettst. | Euphrasia occidentalis Wettst. | 44 | British Isles cytology | Yeo, P.F. Watsonia 3: 101-108 (1954) | ||
| Euphrasia occidentalis Wettst. | Euphrasia occidentalis Wettst. | 44 | Fedorov, 1974 | Yeo 1954 | |||
| Euphrasia occidentalis Wettst. | Euphrasia occidentalis Wettst. | 22 | Cave1956supp | Yeo 1954 |