Smithsonian National Museum of Natural History

Oenothera acaulis Cav. (section Lavauxia, subsection Australis) (Description )

Oenothera acutissima W. L. Wagner (section Lavauxia, subsection Lavauxia) (Description )

Oenothera affinis Cambess. (section Oenothera, subsection Munzia, series Allochroa) (Description )

Oenothera albicaulis Pursh (section Kleinia) (Description )

Oenothera anomala Curtis (section Gaura, subsection Gauridium) (Description )

Oenothera arequipensis Munz & I. M. Johnst. (section Oenothera, subsection Munzia, series Allochroa) (Type Data, Description )

Oenothera argillicola MacK. (section Oenothera, subsection Oenothera) (Description )

Oenothera arida W. L. Wagner & Hoch (section Gaura, subsection Xerogaura) (Description )

Oenothera arizonica (Munz) W. L. Wagner (section Anogra) (Description )

Oenothera avita (W. M. Klein) W. M. Klein (section Anogra)

Oenothera avita (W. M. Klein) W. M. Klein subsp. avita

Oenothera avita (W. M. Klein) W. M. Klein subsp. californica (S. Watson) W. L. Wagner & Gandhi

Oenothera avita (W. M. Klein) W. M. Klein subsp. eurekensis (Munz & J. C. Roos) W. M. Klein

Oenothera bahia-blancae W. Dietr. (section Oenothera, subsection Munzia, series Allochroa) (Description )

Oenothera biennis L. (section Oenothera, subsection Oenothera) (Type Data, Description )

Oenothera boquillensis (P. H. Raven & D. P. Greg.) W. L. Wagner & Hoch (section Gaura, subsection Campogaura) (Description )

Oenothera brachycarpa A. Gray (section Megapterium) (Type Data, Description )

Oenothera brandegeei (Munz) P. H. Raven (section Pachylophus) (Description )

Oenothera breedlovei W. Dietr. & W. L. Wagner (section Oenothera, subsection Nutantigemma) (Description )

Oenothera calcicola (P. H. Raven & D. P. Greg.) W. L. Wagner & Hoch (section Gaura, subsection Stipogaura) (Description )

Oenothera canescens Torr. & Frém. (section Gauropsis) (Description )

Oenothera capillifolia Scheele (section Calylophus, subsection Calylophus) (Description )

Oenothera capillifolia Scheele subsp. berlandieri (Spach) W. L. Wagner & Hoch (Description )

Oenothera capillifolia Scheele subsp. capillifolia (Description )

Oenothera catharinensis Cambess. (section Oenothera, subsection Munzia, series Allochroa) (Description )

Oenothera cavernae Munz (section Pachylophus) (Type Data, Description )

Oenothera centauriifolia (Spach) Steud. (section Lavauxia, subsection Australis) (Description )

Oenothera cespitosa Nutt. (section Pachylophus) (Description )

Oenothera cespitosa Nutt. subsp. cespitosa (Description )

Oenothera cespitosa Nutt. subsp. crinita (Rydb.) Munz (Type Data, Description )

Oenothera cespitosa Nutt. subsp. macroglottis (Rydb.) W. L. Wagner, Stockh. & W. M. Klein (Description )

Oenothera cespitosa Nutt. subsp. marginata (Nutt. ex Hook. & Arn.) Munz (Description )

Oenothera cespitosa Nutt. subsp. navajoensis W. L. Wagner, Stockh. & W. M. Klein (Description )

Oenothera cinerea (Wooton & Standl.) W. L. Wagner & Hoch (section Gaura, subsection Stipogaura) (Description )

Oenothera cinerea (Wooton & Standl.) W. L. Wagner & Hoch subsp. cinerea (Description )

Oenothera cinerea (Wooton & Standl.) W. L. Wagner & Hoch subsp. parksii (Munz) W. L. Wagner & Hoch (Description )

Oenothera clelandii W. Dietr., P. H. Raven & W. L. Wagner (section Oenothera, subsection Candela) (Description )

Oenothera coloradensis (Rydberg) W. L Wagner & Hoch (section Gaura, subsection Gaura) (Description )

Oenothera coquimbensis Gay (section Oenothera, subsection Munzia, series Allochroa) (Description )

Oenothera cordata J. W. Loudon (section Oenothera, subsection Candela) (Description )

Oenothera coronopifolia Torr. & A. Gray (section Kleinia) (Description )

Oenothera coryi W. L. Wagner (section Megapterium) (Description )

Oenothera curtiflora W. L. Wagner & Hoch (section Gaura, subsection Schizocarya) (Description )

Oenothera curtisii Small (section Oenothera, subsection Candela)

Oenothera deltoides Torr. & Frém. (section Anogra) (Description )

Oenothera deltoides Torr. & Frém. subsp. ambigua (S. Wats.) W. M. Klein (Description )

Oenothera deltoides Torr. & Frém. subsp. cognata (Jeps.) W. M. Klein (Description )

Oenothera deltoides Torr. & Frém. subsp. deltoides (Description )

Oenothera deltoides Torr. & Frém. subsp. howellii (Munz) W. M. Klein (Type Data, Description )

Oenothera deltoides Torr. & Frém. subsp. piperi (Munz) W. M. Klein (Type Data, Description )

Oenothera demareei (P. H. Raven & D. P. Greg.) W. L. Wagner & Hoch (section Gaura, subsection Gaura) (Description )

Oenothera deserticola (Loes.) Munz (section Hartmannia) (Type Data, Description )

Oenothera dissecta A. Gray ex S. Wats. (section Leucocoryne) (Description )

Oenothera dodgeniana Krakos & W. L. Wagner (section Gaura, subsection Gaura) (Description )

Oenothera drummondii Hook. (section Oenothera, subsection Raimannia) (Description )

Oenothera drummondii Hook. subsp. drummondii (Description )

Oenothera drummondii Hook. subsp. thalassaphila (Brandegee) W. Dietr. & W. L. Wagner (Description )

Oenothera elata Kunth (section Oenothera, subsection Oenothera) (Description )

Oenothera elata Kunth subsp. elata (Description )

Oenothera elata Kunth subsp. hirsutissima (A. Gray ex S. Wats.) W. Dietr. (Description )

Oenothera elata Kunth subsp. hookeri (Torr. & A. Gray) W. Dietr. & W. L. Wagner (Description )

Oenothera elongata Rusby (section Oenothera, subsection Munzia, series Clelandia) (Type Data, Description )

Oenothera engelmannii (Small) Munz (section Anogra) (Description )

Oenothera epilobiifolia Kunth (section Xanthocoryne) (Description )

Oenothera epilobiifolia Kunth subsp. cuprea (Schlecht.) P. H. Raven & D. R. Parn. (Description )

Oenothera epilobiifolia Kunth subsp. epilobiifolia (Description )

Oenothera falfurriae W. Dietr. & W. L. Wagner (section Oenothera, subsection Raimannia) (Description )

Oenothera featherstonei Munz & I. M. Johnst. (section Oenothera, subsection Munzia, series Allochroa) (Description )

Oenothera filiformis (Small) W. L. Wagner & Hoch (section Gaura, subsection Gaura) (Description )

Oenothera filipes (Spach) W. L. Wagner & Hoch (section Gaura, subsection Stipogaura) (Description )

Oenothera flava (A. Nels.) Garrett (section Lavauxia, subsection Lavauxia) (Description )

Oenothera fruticosa L. (section Kneiffia) (Description )

Oenothera fruticosa L. subsp. fruticosa (Description )

Oenothera fruticosa L. subsp. tetragona (Roth) W.L. Wagner (Description )

Oenothera gaura W. L. Wagner & Hoch (section Gaura, subsection Gaura) (Description )

Oenothera gayleana B. L. Turner & M. J. Moore (section Calylophus, subsection Calylophus) (Description )

Oenothera glaucifolia W. L. Wagner & Hoch (section Gaura, subsection Stenosiphon) (Description )

Oenothera glazioviana Micheli (section Oenothera, subsection Oenothera) (Description )

Oenothera grandiflora L’Hér. (section Oenothera, subsection Oenothera) (Description )

Oenothera grandis (Britton) Smyth (section Oenothera, subsection Raimannia) (Type Data, Description )

Oenothera grisea W. Dietr. (section Oenothera, subsection Munzia, series Allochroa) (Description )

Oenothera harringtonii W. L. Wagner, Stockh. & W. M. Klein (section Pachylophus) (Description )

Oenothera hartwegii Benth. (section Calylophus, subsection Salpingia) (Description )

Oenothera hartwegii Benth. subsp. fendleri (A. Gray) W. L. Wagner & Hoch (Description )

Oenothera hartwegii Benth. subsp. filifolia (Eastw.) W. L. Wagner & Hoch (Description )

Oenothera hartwegii Benth. subsp. hartwegii (Description )

Oenothera hartwegii Benth. subsp. maccartii (Shinners) W. L. Wagner & Hoch (Description )

Oenothera hartwegii Benth. subsp. pubescens (A. Gray) W. L. Wagner & Hoch (Description )

Oenothera havardii S. Wats. (section Paradoxus) (Type Data, Description )

Oenothera heterophylla Spach (section Oenothera, subsection Candela) (Description )

Oenothera heterophylla Spach subsp. heterophylla (Description )

Oenothera heterophylla Spach subsp. orientalis W. Dietr., P. H. Raven & W. L. Wagner (Description )

Oenothera hexandra (Ortega) W. L. Wagner & Hoch (section Gaura, subsection Gaura) (Description )

Oenothera hispida (Benth.) W.L. Wagner, Hoch & Zarucchi (section Gaura, subsection Xenogaura) (Description )

Oenothera howardii (A. Nels.) M. E. Jones ex Prain (section Megapterium) (Description )

Oenothera humifusa Nutt. (section Oenothera, subsection Raimannia) (Description )

Oenothera indecora Cambess. (section Oenothera, subsection Munzia, series Allochroa) (Description )

Oenothera jamesii Torr. & A. Gray (section Oenothera, subsection Oenothera) (Description )

Oenothera kunthiana (Spach) Munz (section Leucocoryne) (Description )

Oenothera laciniata Hill (section Oenothera, subsection Raimannia) (Description )

Oenothera lasiocarpa Griseb. (section Oenothera, subsection Munzia, series Renneria) (Description )

Oenothera lavandulifolia Torr. & A. Gray (section Calylophus, subsection Salpingia) (Description )

Oenothera lindheimeri (Engelm. & A. Gray) W. L. Wagner & Hoch (section Gaura, subsection Gaura) (Description )

Oenothera linifolia Nutt. (section Peniophyllum) (Description )

Oenothera longiflora L. (section Oenothera, subsection Munzia, series Allochroa) (Description )

Oenothera longiflora L. subsp. grandiflora W. Dietr. (Description )

Oenothera longiflora L. subsp. longiflora (Description )

Oenothera longissima Rydb. (section Oenothera, subsection Oenothera) (Type Data, Description )

Oenothera longituba W. Dietr. (section Oenothera, subsection Munzia, series Renneria) (Description )

Oenothera luciae-julianiae W. L. Wagner (section Leucocoryne) (Type Data, Description )

Oenothera macrocarpa Nutt. (section Megapterium) (Description )

Oenothera macrocarpa Nutt. subsp. fremontii (S. Wats.) W. L. Wagner (Type Data, Description )

Oenothera macrocarpa Nutt. subsp. incana (A. Gray) W. L. Wagner (Description )

Oenothera macrocarpa Nutt. subsp. macrocarpa (Description )

Oenothera macrocarpa Nutt. subsp. mexicana W. L. Wagner (Type Data, Description )

Oenothera macrocarpa Nutt. subsp. oklahomensis (Norton) W. L. Wagner (Description )

Oenothera macrosceles A. Gray (section Oenothera, subsection Emersonia) (Description )

Oenothera magellanica Phil. (section Oenothera, subsection Munzia, series Clelandia) (Description )

Oenothera maysillesii Munz (section Oenothera, subsection Emersonia) (Description )

Oenothera mckelveyae (Munz) W. L. Wagner & Hoch (section Gaura, subsection Stipogaura) (Description )

Oenothera mendocinensis Gillies ex Hook. & Arn. (section Oenothera, subsection Munzia, series Allochroa) (Description )

Oenothera mexicana Spach (section Oenothera, subsection Raimannia) (Description )

Oenothera mollissima L. (section Oenothera, subsection Munzia, series Allochroa) (Description )

Oenothera montevidensis W. Dietr. (section Oenothera, subsection Munzia, series Allochroa) (Description )

Oenothera muelleri Munz (section Ravenia) (Description )

Oenothera multicaulis Ruíz & Pav. (section Xanthocoryne) (Description )

Oenothera nana Griseb. (section Oenothera, subsection Munzia, series Renneria) (Description )

Oenothera nealleyi (J. M. Coult.) Krakos & W. L. Wagner (section Gaura, subsection Gaura) (Description )

Oenothera neomexicana (Small) Munz (section Anogra) (Description )

Oenothera nocturna Jacq. (section Oenothera, subsection Munzia, series Allochroa) (Description )

Oenothera nutans G. F. Atk. & Bartlett (section Oenothera, subsection Oenothera) (Description )

Oenothera nuttallii Sweet (section Anogra) (Description )

Oenothera oakesiana (A. Gray) J. W. Robbins ex S. Wats. & J. M. Coult. (section Oenothera, subsection Oenothera) (Description )

Oenothera odorata Jacq. (section Oenothera, subsection Munzia, series Allochroa) (Description )

Oenothera organensis Munz (section Oenothera, subsection Emersonia) (Description )

Oenothera orizabae W. L. Wagner (section Leucocoryne) (Type Data, Description )

Oenothera pallida Lindl. (section Anogra) (Description )

Oenothera pallida Lindl. subsp. latifolia (Rydb.) Munz (Description )

Oenothera pallida Lindl. subsp. pallida (Description )

Oenothera pallida Lindl. subsp. runcinata (Engelm.) Munz & W. M. Klein (Description )

Oenothera pallida Lindl. subsp. trichocalyx (Nutt.) Munz & W. M. Klein (Description )

Oenothera parodiana Munz (section Oenothera, subsection Munzia, series Allochroa) (Description )

Oenothera parviflora L. (section Oenothera, subsection Oenothera) (Description )

Oenothera patriciae W. L. Wagner & Hoch (section Gaura, subsection Gaura) (Description )

Oenothera pedunculifolia W. Dietr. (section Oenothera, subsection Munzia, series Renneria) (Description )

Oenothera pennellii Munz (section Oenothera, subsection Nutantigemma) (Type Data, Description )

Oenothera perennis L. (section Kneiffia) (Description )

Oenothera peruana W. Dietr. (section Oenothera, subsection Munzia, series Renneria) (Description )

Oenothera picensis Phil. (section Oenothera, subsection Munzia, series Allochroa) (Description )

Oenothera picensis Phil. subsp. bonariensis W. Dietr. (Description )

Oenothera picensis Phil. subsp. cordobensis W. Dietr. (Description )

Oenothera picensis Phil. subsp. picensis (Description )

Oenothera pilosella Raf. (section Kneiffia) (Description )

Oenothera platanorum P. H. Raven & D. R. Parn. (section Hartmannia) (Type Data, Description )

Oenothera podocarpa (Wooton & Standl.) Krakos & W. L. Wagner (section Gaura, subsection Gaura) (Description )

Oenothera primiveris A. Gray (section Eremia) (Description )

Oenothera psammophila (A. Nels. & J. F. Macbr.) W. L. Wagner, Stockh. & W. M. Klein (section Pachylophus) (Description )

Oenothera pubescens Willd. ex Spreng. (section Oenothera, subsection Nutantigemma) (Description )

Oenothera punae Kuntze (section Oenothera, subsection Munzia, series Clelandia) (Description )

Oenothera ravenii W. Dietr. (section Oenothera, subsection Munzia, series Allochroa) (Description )

Oenothera ravenii W. Dietr. subsp. chilensis W. Dietr. (Description )

Oenothera ravenii W. Dietr. subsp. ravenii (Description )

Oenothera resicum Benavides, Kuethe, Ortiz-Alcaráz & León de la Luz (section Oenothera, subsection Raimannia) (Description )

Oenothera rhombipetala Nutt. ex Torr. & A. Gray (section Oenothera, subsection Candela) (Description )

Oenothera riparia Nutt. (section Kneiffia)

Oenothera riskindii W. L. Wagner (section Ravenia) (Description )

Oenothera rivadaviae W. Dietr. (section Oenothera, subsection Munzia, series Allochroa) (Description )

Oenothera rosea L'Hér. ex Aiton (section Hartmannia) (Description )

Oenothera sandiana Hassk. (section Oenothera, subsection Munzia, series Renneria) (Description )

Oenothera santarii W. Dietr. (section Oenothera, subsection Munzia, series Renneria) (Description )

Oenothera scabra Krause (section Oenothera, subsection Munzia, series Renneria) (Description )

Oenothera seifrizii Munz (section Xanthocoryne) (Type Data, Description )

Oenothera serrulata Nutt. (section Calylophus, subsection Calylophus) (Description )

Oenothera sessilis (Pennell) Munz (section Kneiffia) (Description )

Oenothera siambonensis W. Dietr. (section Oenothera, subsection Munzia, series Clelandia) (Description )

Oenothera simulans (Small) W. L. Wagner & Hoch (section Gaura, subsection Gaura) (Description )

Oenothera sinuosa W. L. Wagner & Hoch (section Gaura, subsection Stipogaura) (Description )

Oenothera spachiana Torr. & A. Gray (section Kneiffia) (Description )

Oenothera speciosa Nutt. (section Hartmannia) (Description )

Oenothera stricta Ledeb. ex Link (section Oenothera, subsection Munzia, series Allochroa) (Description )

Oenothera stricta Ledeb. ex Link subsp. altissima W. Dietr. (Description )

Oenothera stricta Ledeb. ex Link subsp. stricta (Description )

Oenothera stubbei W. Dietr., P. H. Raven & W. L. Wagner (section Oenothera, subsection Emersonia) (Description )

Oenothera stucchii Soldano (section Oenothera, subsection Oenothera) (Description )

Oenothera suffrutescens (Ser.) W. L. Wagner & Hoch (section Gaura, subsection Campogaura) (Description )

Oenothera suffulta (Engelm. ex A. Gray) W. L. Wagner & Hoch (section Gaura, subsection Gaura) (Description )

Oenothera tafiensis W. Dietr. (section Oenothera, subsection Munzia, series Renneria) (Description )

Oenothera tafiensis W. Dietr. subsp. parviflora W. Dietr. (Description )

Oenothera tafiensis W. Dietr. subsp. tafiensis (Description )

Oenothera tamrae W. Dietr. & W. L. Wagner (section Oenothera, subsection Nutantigemma) (Type Data, Description )

Oenothera tarijensis W. Dietr. (section Oenothera, subsection Munzia, series Renneria) (Description )

Oenothera tetraptera Cav. (section Leucocoryne) (Description )

Oenothera texensis P. H. Raven & D. R. Parn. (section Hartmannia) (Description )

Oenothera toumeyi (Small) Tidestr. (section Calylophus, subsection Salpingia) (Description )

Oenothera triangulata (Buckley) W. L. Wagner & Hoch (section Gaura, subsection Gaura) (Description )

Oenothera triloba Nutt. (section Lavauxia, subsection Lavauxia) (Type Data, Description )

Oenothera tubicula A. Gray (section Calylophus, subsection Salpingia) (Description )

Oenothera tubicula A. Gray subsp. strigulosa (Towner) W. L. Wagner & Hoch (Description )

Oenothera tubicula A. Gray subsp. tubicula (Description )

Oenothera tubifera Ser. (section Ravenia) (Description )

Oenothera tubifera Ser. subsp. macrocarpa W. L. Wagner (Description )

Oenothera tubifera Ser. subsp. tubifera (Description )

Oenothera verrucosa I. M. Johnst. (section Oenothera, subsection Munzia, series Allochroa) (Description )

Oenothera versicolor Lehm. (section Oenothera, subsection Munzia, series Renneria) (Description )

Oenothera villaricae W. Dietr. (section Oenothera, subsection Munzia, series Clelandia) (Description )

Oenothera villosa Thunb. (section Oenothera, subsection Oenothera) (Description )

Oenothera villosa Thunb. subsp. strigosa (Rydb.) W. Dietr. & P. H. Raven (Description )

Oenothera villosa Thunb. subsp. villosa (Description )

Oenothera wigginsii W. M. Klein (section Anogra) (Description )

Oenothera wolfii (Munz) P. H. Raven (section Oenothera, subsection Oenothera) (Description )

Oenothera xylocarpa Coville (section Contortae) (Type Data, Description )