Every accepted species in the genus is listed. A name links to its page when we hold at least three commercially licensed photographs of it. Where we do not, the row shows how many we actually found, which is usually none.
| Species | Authority | Usable photographs | Page |
|---|---|---|---|
| Oenothera biennis | L. | 2,916 | documented |
| Oenothera speciosa | Nutt. | 2,449 | documented |
| Oenothera laciniata | Hill | 1,158 | documented |
| Oenothera rosea | Aiton | 975 | documented |
| Oenothera curtiflora | W.L.Wagner & Hoch | 793 | documented |
| Oenothera suffrutescens | (Ser.) W.L.Wagner & Hoch | 633 | documented |
| Oenothera elata | Kunth | 582 | documented |
| Oenothera glazioviana | Micheli | 467 | documented |
| Oenothera fruticosa | L. | 452 | documented |
| Oenothera cespitosa | Nutt. | 412 | documented |
| Oenothera suffulta | (Engelm.) W.L.Wagner & Hoch | 367 | documented |
| Oenothera lindheimeri | (Engelm. & A.Gray) W.L.Wagner & Hoch | 366 | documented |
| Oenothera capillifolia | Scheele | 326 | documented |
| Oenothera drummondii | Hook. | 308 | documented |
| Oenothera gaura | W.L.Wagner & Hoch | 308 | documented |
| Oenothera triloba | Nutt. | 278 | documented |
| Oenothera stricta | Ledeb. | 277 | documented |
| Oenothera macrocarpa | Nutt. | 274 | documented |
| Oenothera pallida | Lindl. | 231 | documented |
| Oenothera simulans | (Small) W.L.Wagner & Hoch | 230 | documented |
| Oenothera glaucifolia | W.L.Wagner & Hoch | 227 | documented |
| Oenothera serrulata | Nutt. | 165 | documented |
| Oenothera deltoides | Torr. & Frém. | 164 | documented |
| Oenothera parviflora | L. | 141 | documented |
| Oenothera avita | (W.M.Klein) W.M.Klein | 139 | documented |
| Oenothera tetraptera | Cav. | 124 | documented |
| Oenothera perennis | L. | 123 | documented |
| Oenothera albicaulis | Nutt. ex Pursh | 116 | documented |
| Oenothera villosa | Thunb. | 109 | documented |
| Oenothera coronopifolia | Torr. & A.Gray | 89 | documented |
| Oenothera linifolia | Nutt. | 88 | documented |
| Oenothera lavandulifolia | Torr. & A.Gray | 85 | documented |
| Oenothera hartwegii | Benth. | 79 | documented |
| Oenothera primiveris | A.Gray | 78 | documented |
| Oenothera mollissima | L. | 67 | documented |
| Oenothera rhombipetala | Nutt. ex Torr. & A.Gray | 67 | documented |
| Oenothera clelandii | W.Dietr., P.H.Raven & W.L.Wagner | 66 | documented |
| Oenothera affinis | Cambess. | 64 | documented |
| Oenothera filiformis | (Small) W.L.Wagner & Hoch | 64 | documented |
| Oenothera humifusa | Nutt. | 62 | documented |
| Oenothera pilosella | Raf. | 57 | documented |
| Oenothera coryi | W.L.Wagner | 50 | documented |
| Oenothera brachycarpa | A.Gray | 47 | documented |
| Oenothera howardii | (A.Nelson) M.E.Jones ex Prain | 46 | documented |
| Oenothera flava | (A.Nelson) Garrett | 41 | documented |
| Oenothera argillicola | Mack. | 37 | documented |
| Oenothera filipes | (Spach) W.L.Wagner & Hoch | 32 | documented |
| Oenothera nuttallii | Torr. & A.Gray | 32 | documented |
| Oenothera cinerea | (Wooton & Standl.) W.L.Wagner & Hoch | 30 | documented |
| Oenothera tubicula | A.Gray | 29 | documented |
| Oenothera oakesiana | (A.Gray) J.W.Robbins ex S.Watson | 28 | documented |
| Oenothera podocarpa | (Wooton & Standl.) Krakos & W.L.Wagner | 28 | documented |
| Oenothera centaureifolia | Steud. | 25 | documented |
| Oenothera epilobiifolia | Kunth | 22 | documented |
| Oenothera gayleana | B.L.Turner & M.J.Moore | 22 | documented |
| Oenothera indecora | Cambess. | 22 | documented |
| Oenothera xylocarpa | Coville | 22 | documented |
| Oenothera acaulis | Cav. | 20 | documented |
| Oenothera wigginsii | W.M.Klein | 20 | documented |
| Oenothera grandis | Smyth | 19 | documented |
| Oenothera toumeyi | (Small) Tidestr. | 19 | documented |
| Oenothera canescens | Torr. | 18 | documented |
| Oenothera kunthiana | (Spach) Munz | 14 | documented |
| Oenothera pubescens | Wild. ex Spreng. | 13 | documented |
| Oenothera boquillensis | (P.H.Raven & D.P.Greg.) W.L.Wagner & Hoch | 12 | documented |
| Oenothera calcicola | (P.H.Raven & D.P.Greg.) W.L.Wagner & Hoch | 12 | documented |
| Oenothera heterophylla | Spach | 12 | documented |
| Oenothera jamesii | Torr. & A.Gray | 12 | documented |
| Oenothera odorata | Jacq. | 12 | documented |
| Oenothera coquimbensis | Gay | 10 | documented |
| Oenothera deserticola | (Loes.) Munz | 10 | documented |
| Oenothera mckelveyae | (Munz) W.L.Wagner & Hoch | 9 | documented |
| Oenothera tetragona | Roth | 9 | documented |
| Oenothera demareei | (P.H.Raven & D.P.Greg.) W.L.Wagner & Hoch | 8 | documented |
| Oenothera engelmannii | (Small) Munz | 8 | documented |
| Oenothera hexandra | (Ortega) W.L.Wagner & Hoch | 8 | documented |
| Oenothera spachiana | Torr. & A.Gray | 8 | documented |
| Oenothera organensis | Munz ex S.Emers. | 6 | documented |
| Oenothera parodiana | Munz | 6 | documented |
| Oenothera grisea | W.Dietr. | 5 | documented |
| Oenothera hispida | (Benth.) W.L.Wagner, Hoch & Zarucchi | 5 | documented |
| Oenothera neomexicana | (Small) Munz | 5 | documented |
| Oenothera longissima | Rydb. | 4 | documented |
| Oenothera × fallax | Renner | 3 | documented |
| Oenothera arida | W.L.Wagner & Hoch | 3 | documented |
| Oenothera harringtonii | W.L.Wagner, Stockh. & W.M.Klein | 3 | documented |
| Oenothera havardii | S.Watson | 3 | documented |
| Oenothera nana | Griseb. | 3 | documented |
| Oenothera nutans | G.F.Atk. & Bartlett | 3 | documented |
| Oenothera sessilis | (Pennell) Munz | 3 | documented |
| Oenothera picensis | Phil. | 2 | below the evidence gate |
| Oenothera sinuosa | W.L.Wagner & Hoch | 2 | below the evidence gate |
| Oenothera versicolor | Lehm. | 2 | below the evidence gate |
| Oenothera wolfii | (Munz) P.H.Raven, W.Dietr. & Stubbe | 2 | below the evidence gate |
| Oenothera punae | Kuntze | 1 | below the evidence gate |
| Oenothera verrucosa | I.M.Johnst. | 1 | below the evidence gate |
| Oenothera × braunii | Döll | 0 | below the evidence gate |
| Oenothera × clavifera | Hudziok | 0 | below the evidence gate |
| Oenothera × drawertii | Renner ex Rostański | 0 | below the evidence gate |
| Oenothera × polgari | Rostański | 0 | below the evidence gate |
| Oenothera × purpurans | (Borbás) Borbás | 0 | below the evidence gate |
| Oenothera acutifolia | Rostański | 0 | below the evidence gate |
| Oenothera acutissima | W.L.Wagner | 0 | below the evidence gate |
| Oenothera anomala | Curtis | 0 | below the evidence gate |
| Oenothera arequipensis | Munz & I.M.Johnst. | 0 | below the evidence gate |
| Oenothera arizonica | (Munz) W.L.Wagner | 0 | below the evidence gate |
| Oenothera bahia-blancae | W.Dietr. | 0 | below the evidence gate |
| Oenothera brandegeei | (Munz) P.H.Raven | 0 | below the evidence gate |
| Oenothera breedlovei | W.Dietr. & W.L.Wagner | 0 | below the evidence gate |
| Oenothera brevipetala | W.Dietr. | 0 | below the evidence gate |
| Oenothera catharinensis | Cambess. | 0 | below the evidence gate |
| Oenothera cavernae | Munz | 0 | below the evidence gate |
| Oenothera coloradensis | (Rydb.) W.L.Wagner & Hoch | 0 | below the evidence gate |
| Oenothera cordata | J.W.Loudon | 0 | below the evidence gate |
| Oenothera curtissii | Small | 0 | below the evidence gate |
| Oenothera dissecta | A.Gray ex S.Watson | 0 | below the evidence gate |
| Oenothera dodgeniana | Krakos & W.L.Wagner | 0 | below the evidence gate |
| Oenothera elongata | Rusby | 0 | below the evidence gate |
| Oenothera falfurriae | W.Dietr. & W.L.Wagner | 0 | below the evidence gate |
| Oenothera featherstonei | Munz & I.M.Johnst. | 0 | below the evidence gate |
| Oenothera grandiflora | L'Hér. | 0 | below the evidence gate |
| Oenothera heiniana | Teyber | 0 | below the evidence gate |
| Oenothera lasiocarpa | Griseb. | 0 | below the evidence gate |
| Oenothera longiflora | L. | 0 | below the evidence gate |
| Oenothera longituba | W.Dietr. | 0 | below the evidence gate |
| Oenothera luciae-julianiae | W.L.Wagner | 0 | below the evidence gate |
| Oenothera macrosceles | A.Gray | 0 | below the evidence gate |
| Oenothera magellanica | Phil. | 0 | below the evidence gate |
| Oenothera maysillesii | Munz | 0 | below the evidence gate |
| Oenothera mendocinensis | Gillies ex Hook. & Arn. | 0 | below the evidence gate |
| Oenothera mexicana | Spach | 0 | below the evidence gate |
| Oenothera montevidensis | W.Dietr. | 0 | below the evidence gate |
| Oenothera moravica | V.Jehlík & Rostański | 0 | below the evidence gate |
| Oenothera muelleri | Munz | 0 | below the evidence gate |
| Oenothera multicaulis | Ruiz & Pav. | 0 | below the evidence gate |
| Oenothera nealleyi | (J.M.Coult.) Krakos & W.L.Wagner | 0 | below the evidence gate |
| Oenothera nocturna | Jacq. | 0 | below the evidence gate |
| Oenothera orizabae | W.L.Wagner | 0 | below the evidence gate |
| Oenothera patriciae | W.L.Wagner & Hoch | 0 | below the evidence gate |
| Oenothera pedunculifolia | W.Dietr. | 0 | below the evidence gate |
| Oenothera pennellii | Munz | 0 | below the evidence gate |
| Oenothera peruana | W.Dietr. | 0 | below the evidence gate |
| Oenothera platanorum | P.H.Raven & D.R.Parn. | 0 | below the evidence gate |
| Oenothera psammophila | (A.Nelson & J.F.Macbr.) W.L.Wagner, Stockh. & W.M.Klein | 0 | below the evidence gate |
| Oenothera pseudoelongata | W.Dietr. | 0 | below the evidence gate |
| Oenothera ravenii | W.Dietr. | 0 | below the evidence gate |
| Oenothera recurva | W.Dietr. | 0 | below the evidence gate |
| Oenothera resicum | Benavides, Kuethe, Ortiz-Alcaráz & León de la Luz | 0 | below the evidence gate |
| Oenothera riparia | Nutt. | 0 | below the evidence gate |
| Oenothera riskindii | W.L.Wagner | 0 | below the evidence gate |
| Oenothera rivadaviae | W.Dietr. | 0 | below the evidence gate |
| Oenothera sandiana | Hassk. | 0 | below the evidence gate |
| Oenothera santarii | W.Dietr. | 0 | below the evidence gate |
| Oenothera scabra | K.Krause | 0 | below the evidence gate |
| Oenothera seifrizii | Munz | 0 | below the evidence gate |
| Oenothera siambonensis | W.Dietr. | 0 | below the evidence gate |
| Oenothera stubbei | W.Dietr., P.H.Raven & W.L.Wagner | 0 | below the evidence gate |
| Oenothera tafiensis | W.Dietr. | 0 | below the evidence gate |
| Oenothera tamrae | W.Dietr. & W.L.Wagner | 0 | below the evidence gate |
| Oenothera tarijensis | W.Dietr. | 0 | below the evidence gate |
| Oenothera texensis | P.H.Raven & D.R.Parn. | 0 | below the evidence gate |
| Oenothera triangulata | (Buckley) W.L.Wagner & Hoch | 0 | below the evidence gate |
| Oenothera tubifera | Ser. | 0 | below the evidence gate |
| Oenothera tucumanensis | W.Dietr. | 0 | below the evidence gate |
| Oenothera villaricae | W.Dietr. | 0 | below the evidence gate |
This site is commercial, so it can only publish photographs licensed for commercial use. Roughly three quarters of the photographs on iNaturalist are CC BY-NC, which excludes them. A species needs at least three usable photographs before we will build it a page, because a page with one picture and no traits tells you nothing you could not get from a search result, and generating hundreds of thousands of those is precisely the practice that got the previous version of this site deleted.
So the species above without a link are not errors and they are not omissions. They are real, accepted plants that we cannot yet document to the standard we hold ourselves to, and the count in the photographs column is exactly how far short we fall.