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- Oenothera jamesii, Oenothera longissima, Oenothera nutans, Oenothera oakesiana, Oenothera parviflora, Oenothera villosa, Oenothera wolfii Warren L. Wagner14 KB (877 words) - 23:22, 2 December 2022
- Crataegus irrasa, Crataegus lumaria, Crataegus margarettae, Crataegus oakesiana, Crataegus sheila-phippsiae, Crataegus ursopedensis Man. Cult. Trees ed14 KB (936 words) - 23:53, 5 November 2020
- niagarensis R. R. Gates O. nobska A. H. Sturtevant O. oakesiana var. nobska (A. H. Sturtevant) R. R. Gates O. oakesiana var. tidestromii (Bartlett) R. R. Gates O.8 KB (656 words) - 11:31, 9 May 2022
- seriesCrataegus (sect. Coccineae) ser. Rotundifoliae speciesCrataegus oakesiana Eggleston Torreya 7: 35. 1907. James B. Phipps Conservation concernEndemic4 KB (300 words) - 23:53, 5 November 2020
- readily distinguished from both C. chrysocarpa var. vigintistamina and C. oakesiana by its larger, more oblong, and more venous leaves. Dubious records from5 KB (508 words) - 23:53, 5 November 2020
- with which it comes in contact, includingO. grandiflora, O. nutans, O. oakesiana, O. parviflora, O. villosa subsp. strigosa, and O. villosa subsp. villosa11 KB (987 words) - 11:31, 9 May 2022