The Plant List — A working list for all plant species

⚠ Version 1 of The Plant List has been superseded.

You should refer instead to the current version of The Plant List.

Results

1029 plant name records match your search criteria Oenothera. The results are below.

• Genus Oenothera is in the family Onagraceae. Species epithets begin with: A B C D E F G H I J K L M N O P Q R S T U V W X Y

The results can also be downloaded as a CSV file.

See "Status", "Confidence level", "Source" for definitions.

Name	Status	Confi­dence level	Source
Oenothera aberrans Lutz	Unresolved		WCSP (in review)
Oenothera abramsii J.F. Macbr.	Synonym		TRO
Oenothera acaulis Cav.	Accepted		TRO
Oenothera acaulis var. grandiflora (Ruiz & Pav.) Kuntze	Accepted		TRO
Oenothera acuminata Phil.	Unresolved		TRO
Oenothera acuticarpa W. Dietr.	Synonym		TRO
Oenothera acutifolia Rostanski	Unresolved		WCSP (in review)
Oenothera acutissima W.L. Wagner	Synonym		TRO
Oenothera adriatica Soldano	Unresolved		WCSP (in review)
Oenothera affinis Cambess.	Accepted		TRO
Oenothera agari R.R.Gates	Unresolved		WCSP (in review)
Oenothera agassizia Steud.	Unresolved		WCSP (in review)
Oenothera agryrophylla Spach	Unresolved		TRO
Oenothera alba Noronha	Unresolved		WCSP (in review)
Oenothera albescens S.Watson	Unresolved		WCSP (in review)
Oenothera albicans Lam.	Synonym		TRO
Oenothera albicaulis Pursh	Synonym		TRO
Oenothera albicaulis var. brevifolia Engelm.	Synonym		TRO
Oenothera albicaulis var. californica S. Watson	Synonym		TRO
Oenothera albicaulis var. decumbens Parry	Synonym		TRO
Oenothera albicaulis var. gypsophila Eastw.	Synonym		TRO
Oenothera albicaulis var. nuttallii (Sweet) Engelm.	Synonym		TRO
Oenothera albicaulis var. pallida (Douglas ex Lindl.) H. Lév.	Unresolved		TRO
Oenothera albicaulis var. runcinata Engelm.	Synonym		TRO
Oenothera albida de Vries	Unresolved		WCSP (in review)
Oenothera albinervis R.R. Gates	Synonym		TRO
Oenothera × albipercurva Renner ex Hudziok	Unresolved		WCSP (in review)
Oenothera albisubcurva Renner	Unresolved		TRO
Oenothera alyssoides Hook. & Arn.	Synonym		WCSP (in review)
Oenothera alyssoides var. decorticans (Hook. & Arn.) Jeps.	Synonym		TRO
Oenothera alyssoides var. minutiflora S. Watson	Synonym		TRO
Oenothera alyssoides var. villosa S. Watson	Synonym		TRO
Oenothera ambigua (Nutt.) Spreng.	Synonym		TRO
Oenothera ammophila Focke	Unresolved		WCSP (in review)
Oenothera ammophiloides R.R.Gates & Catches.	Unresolved		WCSP (in review)
Oenothera ammophiloides var. flecticaulis (R.R. Gates) R.R. Gates	Unresolved		TRO
Oenothera ammophiloides var. parva (R.R. Gates) R.R. Gates	Unresolved		TRO
Oenothera amoena Lehm.	Synonym		TRO
Oenothera amplexicaulis (Wooton & Standl.) Tidestr.	Accepted		TRO
Oenothera andina Nutt.	Synonym		WCSP (in review)
Oenothera andina var. hilgardii (Greene) Munz	Synonym		TRO
Oenothera angelorum S.Watson	Synonym		WCSP (in review)
Oenothera angustifolia Mill.	Unresolved		WCSP (in review)
Oenothera angustissima R.R. Gates	Synonym		TRO
Oenothera anisoloba Sweet	Unresolved		WCSP (in review)
Oenothera anomala Curtis	Unresolved		WCSP (in review)
Oenothera apicaborta R.R.Gates	Unresolved		WCSP (in review)
Oenothera arborea Kellogg	Synonym		TRO
Oenothera arcuata Kellogg	Synonym		TRO
Oenothera arenaria (A.Nelson) P.H.Raven	Synonym		WCSP (in review)
Oenothera arenicola (Small) Coker	Synonym		TRO
Oenothera arequipensis Munz & I.M. Johnst.	Accepted		TRO
Oenothera argentinae H.Lév. & Thell.	Unresolved		WCSP (in review)
Oenothera argillicola Mack.	Synonym		TRO
Oenothera arguta Greene	Synonym		TRO
Oenothera arida W.L.Wagner & Hoch	Unresolved		WCSP (in review)
Oenothera arizonica (Munz) W.L. Wagner	Accepted		TRO
Oenothera arnottii Torr. & A. Gray	Synonym		TRO
Oenothera ascendens Willd.	Synonym		TRO
Oenothera asperifolia Nutt.	Unresolved		WCSP (in review)
Oenothera atrovirens Shull & Bartlett	Unresolved		WCSP (in review)
Oenothera atrovirens var. ostreae (Sturtev.) R.R. Gates	Unresolved		TRO
Oenothera aurantia Willd. ex Spreng.	Unresolved		WCSP (in review)
Oenothera auricula H.Lév.	Unresolved		WCSP (in review)
Oenothera australis (Wooton & Standl.) Tidestr.	Synonym		TRO
Oenothera austromontana (Munz) P.H.Raven, W.Dietr. & Stubbe	Unresolved		WCSP (in review)
Oenothera autranii H.Lév.	Unresolved		WCSP (in review)
Oenothera avita (W.M. Klein) W.M. Klein	Accepted		TRO
Oenothera avita subsp. arizonica (Munz) W.M. Klein	Synonym		TRO
Oenothera avita subsp. eurekensis (Munz & J.C. Roos) W.M. Klein	Accepted		TRO
Oenothera bahia-blancae W. Dietr.	Accepted		TRO
Oenothera barbeyana H. Lév.	Synonym		TRO
Oenothera baurii Boedijn	Unresolved		WCSP (in review)
Oenothera beckeri Renner	Unresolved		WCSP (in review)
Oenothera berlandieri Walp.	Unresolved		WCSP (in review)
Oenothera berlandieri Steud.	Unresolved		WCSP (in review)
Oenothera berlandieri subsp. pinifolia (Engelm. ex A. Gray) W.L. Wagner & Hoch	Unresolved		TRO
Oenothera berteroana Spach	Synonym		TRO
Oenothera bertolonii B.Wells	Unresolved		WCSP (in review)
Oenothera biennis L.	Accepted		WCSP (in review)
Oenothera biennis f. argillicola (Mack.) B. Boivin	Accepted		TRO
Oenothera biennis var. austromontana (Munz) Cronquist	Accepted		TRO
Oenothera biennis subsp. austromontana Munz	Synonym		TRO
Oenothera biennis var. canescens Torr. & A. Gray	Synonym		TRO
Oenothera biennis var. cruciata (Nutt. ex G. Don) Torr. & A. Gray	Synonym		TRO
Oenothera biennis f. grandiflora (L'Hér.) D.S. Carp.	Accepted		TRO
Oenothera biennis var. grandiflora (L'Hér.) Torr. & A. Gray	Synonym		TRO
Oenothera biennis var. hirsutissima A. Gray ex S. Watson	Synonym		TRO
Oenothera biennis f. hookeri (Torr. & A. Gray) B. Boivin	Synonym		TRO
Oenothera biennis var. hookeri (Torr. & A. Gray) B. Boivin	Synonym		TRO
Oenothera biennis f. muricata (L.) B. Boivin	Accepted		TRO
Oenothera biennis var. muricata (L.) Torr. & A. Gray	Synonym		TRO
Oenothera biennis var. nutans (G.F. Atk. & Bartlett) Wiegand	Accepted		TRO
Oenothera biennis var. oakesiana A. Gray	Synonym		TRO
Oenothera biennis var. parviflora (L.) Torr. & A. Gray	Synonym		TRO
Oenothera biennis var. pycnocarpa (G.F. Atk. & Bartlett) Wiegand	Accepted		TRO
Oenothera biennis f. stenopetala (E.P. Bicknell) B. Boivin	Accepted		TRO
Oenothera biennis var. strigosa (Rydb.) Cronquist	Accepted		TRO
Oenothera biformiflora R.R.Gates	Unresolved		WCSP (in review)
Oenothera bifrons D.Don	Unresolved		WCSP (in review)
Oenothera bifrons Lindl.	Unresolved		WCSP (in review)
Oenothera biloba Durand	Synonym		TRO
Oenothera bistorta Nutt. ex Torr. & A. Gray	Synonym		TRO
Oenothera bistorta var. hallii (Davidson) Jeps.	Synonym		TRO
Oenothera bistorta var. veitchiana Hook.	Synonym		TRO
Oenothera blandina de Vries	Unresolved		WCSP (in review)
Oenothera boothii Douglas	Synonym		WCSP (in review)
Oenothera boothii subsp. alyssoides (Hook. & Arn.) Munz	Synonym		TRO
Oenothera boothii subsp. condensata (Munz) Munz	Synonym		TRO
Oenothera boothii subsp. decorticans (Hook. & Arn.) Munz	Synonym		TRO
Oenothera boothii subsp. desertorum (Munz) Munz	Synonym		TRO
Oenothera boothii subsp. intermedia Munz	Synonym		WCSP (in review)
Oenothera boothii subsp. inyoensis Munz	Synonym		TRO
Oenothera boothii var. pygmaea (Douglas) Torr. & A. Gray	Synonym		TRO
Oenothera boothii subsp. rutila (Davidson) Munz	Synonym		TRO
Oenothera boquillensis (P.H. Raven & D.P. Greg.) W.L. Wagner & Hoch	Synonym		TRO
Oenothera bottae Torr. & A.Gray	Unresolved		WCSP (in review)
Oenothera bottae Steud.	Unresolved		WCSP (in review)
Oenothera brachycarpa A. Gray	Accepted		TRO
Oenothera brachycarpa var. wrightii (A. Gray) H. Lév.	Accepted		TRO
Oenothera brachysepala Spach	Synonym		TRO
Oenothera bracteata Phil.	Synonym		TRO
Oenothera bradburiana Nutt. ex Torr. & A. Gray	Synonym		TRO
Oenothera brandegeei (Munz) P.H.Raven	Unresolved		WCSP (in review)
Oenothera brasiliensis Gardner ex Micheli	Unresolved		WCSP (in review)
Oenothera × braunii Doell	Unresolved		WCSP (in review)
Oenothera breedlovei W.Dietr. & W.L.Wagner	Unresolved		WCSP (in review)
Oenothera brevicapsula Bartlett	Unresolved		WCSP (in review)
Oenothera brevicapsula Greene	Unresolved		WCSP (in review)
Oenothera breviflora Torr. & A. Gray	Synonym		TRO
Oenothera brevipes A.Gray	Synonym		WCSP (in review)
Oenothera brevipes subsp. arizonica P.H.Raven	Synonym		WCSP (in review)
Oenothera brevipes var. multijuga (S. Watson) Jeps.	Synonym		TRO
Oenothera brevipes var. pallidula Munz	Synonym		WCSP (in review)
Oenothera brevipes subsp. pallidula (Munz) P.H. Raven	Synonym		TRO
Oenothera brevipes var. parviflora S.Watson	Synonym		WCSP (in review)
Oenothera brevipes var. scapoidea (Torr. & A. Gray) H. Lév.	Synonym		TRO
Oenothera brevipetala W.Dietr.	Unresolved		WCSP (in review)
Oenothera brevispicata Hudziok	Unresolved		WCSP (in review)
Oenothera brevistylis de Vries	Unresolved		WCSP (in review)
Oenothera × britannica Rostanski	Unresolved		WCSP (in review)
Oenothera bufonis M.E. Jones	Synonym		TRO
Oenothera bulgarica Delip.	Unresolved		WCSP (in review)
Oenothera burkartiana Bartlett	Unresolved		WCSP (in review)
Oenothera caesia Nutt.	Unresolved		WCSP (in review)
Oenothera caespitosa var. brandegeei Munz	Unresolved		WCSP (in review)
Oenothera calcicola (P.H. Raven & D.P. Greg.) W.L. Wagner & Hoch	Synonym		TRO
Oenothera californica (S. Watson) S. Watson	Synonym		TRO
Oenothera californica subsp. arizonica (Munz) W.M. Klein	Synonym		TRO
Oenothera californica subsp. avita W.M. Klein	Synonym		TRO
Oenothera californica subsp. eurekensis (Munz & J.C. Roos) W.M. Klein	Synonym		TRO
Oenothera cambrica Rostanski	Unresolved		WCSP (in review)
Oenothera campestris Greene	Synonym		TRO
Oenothera campestris var. cruciata (S. Watson) Greene	Synonym		TRO
Oenothera campestris subsp. parishii (Abrams) Munz	Unresolved		TRO
Oenothera camporum (Wooton & Standl.) Tidestr.	Unresolved		WCSP (in review)
Oenothera campylocalyx C. Koch & Bouché	Synonym		TRO
Oenothera campylocarpa Bailly	Unresolved		WCSP (in review)
Oenothera canadensis Goldie	Unresolved		WCSP (in review)
Oenothera candida Bellardi ex Colla	Unresolved		WCSP (in review)
Oenothera candida Dum.Cours.	Unresolved		WCSP (in review)
Oenothera canescens Torr. & Frém.	Synonym		TRO
Oenothera canovertex Hudziok	Unresolved		WCSP (in review)
Oenothera canovirens Steele	Unresolved		WCSP (in review)
Oenothera canovirens var. cymotilis (Bartlett) R.R. Gates	Unresolved		TRO
Oenothera cantabrigiana B.M.Davis	Unresolved		WCSP (in review)
Oenothera capillifolia Scheele	Unresolved		WCSP (in review)
Oenothera cardiophylla Torr.	Synonym		WCSP (in review)
Oenothera cardiophylla subsp. cedroensis (Greene) P.H. Raven	Synonym		TRO
Oenothera cardiophylla subsp. robusta P.H.Raven	Synonym		WCSP (in review)
Oenothera carinthiaca Rostanski	Unresolved		WCSP (in review)
Oenothera casimiri Rostanski	Unresolved		WCSP (in review)
Oenothera catharinensis Cambess.	Accepted		TRO
Oenothera cavernae Munz	Unresolved		WCSP (in review)
Oenothera cedrosensis Greene	Synonym		WCSP (in review)
Oenothera centaurifolia Steud.	Accepted		TRO
Oenothera cespitosa Nutt.	Synonym		TRO
Oenothera cespitosa var. australis (Wooton & Standl.) Munz	Synonym		TRO
Oenothera cespitosa subsp. australis (Wooton & Standl.) Munz	Unresolved		TRO
Oenothera cespitosa var. crinita (Rydb.) Munz	Synonym		TRO
Oenothera cespitosa subsp. crinita (Rydb.) Munz	Unresolved		TRO
Oenothera cespitosa subsp. eximia (A. Gray) Munz	Unresolved		TRO
Oenothera cespitosa var. eximia (A. Gray) Munz	Synonym		TRO
Oenothera cespitosa var. jonesii Munz	Synonym		TRO
Oenothera cespitosa subsp. jonesii (Munz) Munz	Unresolved		TRO
Oenothera cespitosa var. longiflora (A. Heller) Munz	Unresolved		TRO
Oenothera cespitosa subsp. macroglottis (Rydb.) W.L. Wagner, Stockh. & W.M. Klein	Unresolved		TRO
Oenothera cespitosa var. marginata (Nutt. ex Hook. & Arn.) Munz	Synonym		TRO
Oenothera cespitosa subsp. marginata (Nutt. ex Hook. & Arn.) Munz	Unresolved		TRO
Oenothera cespitosa subsp. montana (Nutt.) Munz	Unresolved		TRO
Oenothera cespitosa var. montana (Nutt.) Durand	Synonym		TRO
Oenothera cespitosa subsp. navajoensis Wagner, Stockhouse, & Klein	Synonym		TRO
Oenothera cespitosa var. navajoensis (Wagner, Stockhouse, & Klein) Cronquist	Unresolved		TRO
Oenothera cespitosa var. primiveris (A. Gray) H. Lév.	Unresolved		TRO
Oenothera cespitosa var. psammophila (A. Nelson & J.F. Macbr.) Munz	Synonym		TRO
Oenothera cespitosa var. purpurea (S. Watson) Munz	Synonym		TRO
Oenothera cespitosa subsp. purpurea (S. Watson) Munz	Unresolved		TRO
Oenothera chamaenerioides A.Gray	Synonym		WCSP (in review)
Oenothera chamaenerioides var. torta H. Lév.	Synonym		TRO
Oenothera chamissonis Link	Unresolved		WCSP (in review)
Oenothera cheiranthifolia Hornem. ex Spreng.	Synonym		TRO
Oenothera cheiranthifolia var. contorta (Douglas ex Hook.) H. Lév.	Unresolved		TRO
Oenothera cheiranthifolia var. nitida (Greene) Munz	Unresolved		TRO
Oenothera cheiranthifolia var. suffruticosa S. Watson	Synonym		TRO
Oenothera cheiranthifolia subsp. suffruticosa (S. Watson) Munz	Synonym		TRO
Oenothera cheiranthifolia var. viridescens (Hook.) Hoover	Unresolved		TRO
Oenothera cheradophila Bartlett	Synonym		TRO
Oenothera chicaginensis de Vries ex Renner & Cleland	Unresolved		WCSP (in review)
Oenothera chilensis D. Dietr.	Synonym		TRO
Oenothera chilensis Fischer & Meyer	Synonym		TRO
Oenothera chrysantha Michx.	Synonym		TRO
Oenothera cinerea (Wooton & Standl.) W.L. Wagner & Hoch	Synonym		TRO
Oenothera cinerea subsp. parksii (Munz) W.L. Wagner & Hoch	Synonym		TRO
Oenothera cinnabarina E.Morren	Unresolved		WCSP (in review)
Oenothera clandestina Nutt. ex S. Watson	Unresolved		TRO
Oenothera × clavifera Hudziok	Unresolved		WCSP (in review)
Oenothera claviformis Torr. & Frém.	Synonym		WCSP (in review)
Oenothera claviformis var. aurantiaca (S.Watson) Munz	Synonym		WCSP (in review)
Oenothera claviformis subsp. aurantiaca (S. Watson) P.H. Raven	Synonym		TRO
Oenothera claviformis var. cruciformis (Kellogg) Munz	Synonym		TRO
Oenothera claviformis subsp. cruciformis (Kellogg) P.H. Raven	Synonym		TRO
Oenothera claviformis subsp. funerea P.H.Raven	Synonym		WCSP (in review)
Oenothera claviformis subsp. integrior P.H.Raven	Synonym		WCSP (in review)
Oenothera claviformis subsp. lancifolia (A. Heller) P.H. Raven	Synonym		TRO
Oenothera claviformis var. peeblesii Munz	Synonym		WCSP (in review)
Oenothera claviformis subsp. peeblesii (Munz) P.H. Raven	Synonym		TRO
Oenothera claviformis var. peirsonii Munz	Synonym		WCSP (in review)
Oenothera claviformis subsp. peirsonii (Munz) P.H. Raven	Synonym		TRO
Oenothera claviformis var. purpurascens (S. Watson) Munz	Synonym		TRO
Oenothera claviformis subsp. rubescens P.H.Raven	Synonym		WCSP (in review)
Oenothera claviformis subsp. wigginsii P.H.Raven	Synonym		WCSP (in review)
Oenothera claviformis subsp. yumae P.H.Raven	Synonym		WCSP (in review)
Oenothera cleistantha Shull & Bartlett	Unresolved		WCSP (in review)
Oenothera cleistogama H.Lév.	Unresolved		WCSP (in review)
Oenothera clelandii W.Dietr., P.H.Raven & W.L.Wagner	Unresolved		WCSP (in review)
Oenothera clutei A. Nelson	Synonym		TRO
Oenothera clypeata H. Lév.	Synonym		TRO
Oenothera coccinea Britton	Synonym		TRO
Oenothera cochinchinensis Lour. ex Steud.	Unresolved		WCSP (in review)
Oenothera cockerellii Bartlett & de Vries	Synonym		TRO
Oenothera coloradensis (Rydb.) W.L. Wagner & Hoch	Synonym		TRO
Oenothera coloradensis subsp. neomexicana (Wooton) W.L. Wagner & Hoch	Synonym		TRO
Oenothera coloratissima Hudziok	Unresolved		WCSP (in review)
Oenothera columbiana Greene	Unresolved		WCSP (in review)
Oenothera communis H.Lév.	Unresolved		WCSP (in review)
Oenothera communis var. hookeri (Torr. & A. Gray) H. Lév.	Synonym		TRO
Oenothera comosa R.R.Gates	Unresolved		WCSP (in review)
Oenothera compacta Hudziok	Unresolved		WCSP (in review)
Oenothera concinna D. Don	Synonym		TRO
Oenothera confertiflora P.H.Raven	Synonym		WCSP (in review)
Oenothera contorta Douglas ex Hook.	Synonym		TRO
Oenothera contorta var. epilobioides (Greene) Munz	Unresolved		TRO
Oenothera contorta var. flexuosa (A. Nelson) Munz	Unresolved		TRO
Oenothera contorta var. pubens (S. Watson) Coville	Synonym		TRO
Oenothera contorta var. strigulosa (Fisch. & C.A. Mey.) Munz	Synonym		TRO
Oenothera coquimbensis Gay	Accepted		TRO
Oenothera cordata Steud.	Unresolved		WCSP (in review)
Oenothera cordata J.W.Loudon	Unresolved		WCSP (in review)
Oenothera cordobensis W. Dietr.	Synonym		TRO
Oenothera coronopifolia Torr. & A. Gray	Unresolved		TRO
Oenothera coryi W.L.Wagner	Unresolved		WCSP (in review)
Oenothera corymbosa Lam.	Unresolved		WCSP (in review)
Oenothera corymbosa Sims	Unresolved		WCSP (in review)
Oenothera crassifolia Greene	Synonym		WCSP (in review)
Oenothera crassifolia var. leptocarpa (Greene) H. Lév.	Unresolved		TRO
Oenothera crassiuscula Greene	Unresolved		WCSP (in review)
Oenothera crispa Schult.	Unresolved		WCSP (in review)
Oenothera cruciata Nutt. ex G. Don	Synonym		TRO
Oenothera cruciata (S. Watson) Munz	Accepted		TRO
Oenothera cruciata var. stenopetala (E.P. Bicknell) Fernald	Synonym		TRO
Oenothera cruciformis Kellogg	Synonym		WCSP (in review)
Oenothera ctenophylla (Wooton & Standl.) Tidestr.	Accepted		TRO
Oenothera cuneifolia Raf.	Unresolved		WCSP (in review)
Oenothera cuprea Schltdl.	Synonym		WCSP (in review)
Oenothera curtiflora W.L. Wagner & Hoch	Accepted		TRO
Oenothera curtissii (Rose) Small	Synonym		TRO
Oenothera curvifolia H.P. Fischer	Synonym		TRO
Oenothera cuspidata Steud.	Unresolved		WCSP (in review)
Oenothera cymatilis Bartlett	Synonym		TRO
Oenothera davisii Greene	Unresolved		WCSP (in review)
Oenothera decorticans (Hook. & Arn.) Greene	Synonym		TRO
Oenothera decorticans var. condensata Munz	Synonym		WCSP (in review)
Oenothera decorticans var. desertorum Munz	Synonym		WCSP (in review)
Oenothera decorticans var. rutila (Davidson) Munz	Synonym		TRO
Oenothera decumbens Douglas ex Hook.	Unresolved		WCSP (in review)
Oenothera deflexa R.R.Gates	Unresolved		WCSP (in review)
Oenothera delessertiana Steud.	Unresolved		WCSP (in review)
Oenothera deltoides Torr. & Frém.	Synonym		TRO
Oenothera deltoides var. ambigua Munz	Synonym		TRO
Oenothera deltoides subsp. ambigua (Munz) W.M. Klein	Unresolved		TRO
Oenothera deltoides var. arizonica Munz	Synonym		TRO
Oenothera deltoides var. cineracea (Jeps.) Munz	Unresolved		TRO
Oenothera deltoides subsp. cognata (Jeps.) W.M. Klein	Unresolved		TRO
Oenothera deltoides var. cognata (Jeps.) Munz	Synonym		TRO
Oenothera deltoides var. decumbens (Parry) Munz	Unresolved		TRO
Oenothera deltoides subsp. eurekensis Munz & J.C. Roos	Synonym		TRO
Oenothera deltoides subsp. howellii (Munz) W.M. Klein	Unresolved		TRO
Oenothera deltoides var. howellii Munz	Synonym		TRO
Oenothera deltoides subsp. piperi (Munz) W.M. Klein	Unresolved		TRO
Oenothera deltoides var. piperi Munz	Synonym		TRO
Oenothera demareei (P.H. Raven & D.P. Gregory) W.L. Wagner & Hoch	Synonym		TRO
Oenothera densiflora Lindl.	Synonym		TRO
Oenothera dentata Cav.	Synonym		TRO
Oenothera dentata var. campestris (Greene) Jeps.	Synonym		TRO
Oenothera dentata var. cruciata S. Watson	Synonym		TRO
Oenothera dentata var. gilmanii Munz	Synonym		TRO
Oenothera dentata var. parishii (Abrams) Munz	Synonym		TRO
Oenothera depressa Greene	Synonym		TRO
Oenothera deserti M.E. Jones	Synonym		TRO
Oenothera deserticola (Loes.) Munz	Accepted		TRO
Oenothera diffusa Nutt.	Unresolved		WCSP (in review)
Oenothera diplotricha Domin	Unresolved		WCSP (in review)
Oenothera disjuncta Boedijn	Unresolved		WCSP (in review)
Oenothera dissecta A. Gray	Synonym		TRO
Oenothera distorta H.J.Veitch ex Vilm.	Unresolved		WCSP (in review)
Oenothera divaricata Greene	Unresolved		WCSP (in review)
Oenothera domingensis (Urb. & Ekman) Munz	Synonym		TRO
Oenothera × drawertii Renner ex Rostanski	Unresolved		WCSP (in review)
Oenothera drummondii Hook.	Accepted		TRO
Oenothera drummondii (Spach) Walp.	Unresolved		TRO
Oenothera drummondii subsp. thalassaphila (Brandegee) W. Dietr. & W.L. Wagner	Accepted		TRO
Oenothera drummondii var. thalassaphila (Brandegee) Munz	Synonym		TRO
Oenothera eastwoodiae (Munz) P.H.Raven	Synonym		WCSP (in review)
Oenothera editicaulis Hudziok	Unresolved		WCSP (in review)
Oenothera elata Kunth	Accepted		TRO
Oenothera elata subsp. elata	Accepted		TRO
Oenothera elata subsp. hirsutissima (A. Gray ex S. Watson) W. Dietr.	Synonym		TRO
Oenothera elata var. hirsutissima (A. Gray ex S. Watson) Cronquist	Accepted		TRO
Oenothera elata subsp. hookeri (Torr. & A. Gray) W. Dietr. & W.L. Wagner	Accepted		TRO
Oenothera elegans E.H.L.Krause	Unresolved		WCSP (in review)
Oenothera elegans H.Lév.	Unresolved		WCSP (in review)
Oenothera elliptica de Vries	Unresolved		WCSP (in review)
Oenothera elongata Rusby	Accepted		TRO
Oenothera eminens Tausch	Unresolved		WCSP (in review)
Oenothera engelmannii (Small) Munz	Accepted		TRO
Oenothera epilobiifolia Kunth	Accepted		WCSP (in review)
Oenothera epilobiifolia subsp. cuprea (Schltdl.) P.H. Raven & D.R. Parn.	Synonym		TRO
Oenothera epilobiifolia subsp. epilobiifolia	Synonym		TRO
Oenothera epilobioides Nutt. ex Torr. & A. Gray	Synonym		TRO
Oenothera eriensis R.R.Gates	Unresolved		WCSP (in review)
Oenothera eriensis var. niagarensis (R.R. Gates) R.R. Gates	Unresolved		TRO
Oenothera eriensis var. repandodentata (R.R. Gates) R.R. Gates	Unresolved		TRO
Oenothera ersteinensis H.P.Linder & Jean	Unresolved		WCSP (in review)
Oenothera erythra J.F.Macbr.	Unresolved		WCSP (in review)
Oenothera erythrosepala (Borbás) Borbás	Synonym		TRO
Oenothera eucharidium H.Lév.	Unresolved		WCSP (in review)
Oenothera eulobus H.Lév.	Unresolved		WCSP (in review)
Oenothera exigua A. Gray	Synonym		TRO
Oenothera exilis P.H.Raven	Synonym		WCSP (in review)
Oenothera eximia A. Gray	Synonym		TRO
Oenothera falfurriae W.Dietr. & W.L.Wagner	Unresolved		WCSP (in review)
Oenothera fallax Renner em Rostanski	Unresolved		TRO
Oenothera fatua de Vries	Unresolved		WCSP (in review)
Oenothera featherstonei Munz & I.M. Johnst.	Accepted		TRO
Oenothera fendleri A. Gray	Synonym		TRO
Oenothera filifolia (Eastw.) Tidestr.	Unresolved		WCSP (in review)
Oenothera filiformis (Small) W.L. Wagner & Hoch	Synonym		TRO
Oenothera filipes (Spach) W.L. Wagner & Hoch	Synonym		TRO
Oenothera fissifolia Steud.	Unresolved		WCSP (in review)
Oenothera flaemingina Hudziok	Unresolved		WCSP (in review)
Oenothera flava (A. Nelson) Garrett	Synonym		TRO
Oenothera flava (A. Nelson) Munz	Accepted		TRO
Oenothera flava var. acutissima (W.L. Wagner) S.L. Welsh	Accepted		TRO
Oenothera flava subsp. taraxacoides (Wooton & Standl.) W.L. Wagner	Accepted		TRO
Oenothera flecticaulis R.R. Gates	Synonym		TRO
Oenothera florida Salisb.	Unresolved		WCSP (in review)
Oenothera formosa Leichtlin	Unresolved		WCSP (in review)
Oenothera franciscana Bartlett	Synonym		TRO
Oenothera fraseri Pursh	Synonym		TRO
Oenothera fremontii S. Watson	Synonym		TRO
Oenothera fruticetorum J.T.Howell	Unresolved		WCSP (in review)
Oenothera fruticosa L.	Synonym		TRO
Oenothera fruticosa var. ambigua Nutt.	Synonym		TRO
Oenothera fruticosa var. eamesii (B.L. Rob.) S.F. Blake	Unresolved		TRO
Oenothera fruticosa var. fraseri (Pursh) Hook.	Synonym		TRO
Oenothera fruticosa subsp. glauca (Michx.) Straley	Unresolved		TRO
Oenothera fruticosa var. glauca (Michx.) H. Lév.	Synonym		TRO
Oenothera fruticosa var. hirsuta Nutt. ex Torr. & A. Gray	Synonym		TRO
Oenothera fruticosa f. hirsuta (Nutt. ex Torr. & A. Gray) H. Lév.	Unresolved		TRO
Oenothera fruticosa var. linearis (Michx.) S. Watson	Unresolved		TRO
Oenothera fruticosa var. pilosella (Raf.) Small & A. Heller	Synonym		TRO
Oenothera fruticosa var. subglobosa (Small) Munz	Unresolved		TRO
Oenothera furca Boedijn	Unresolved		WCSP (in review)
Oenothera fusca (K. Krause) Sprague & L.A. Riley	Synonym		TRO
Oenothera fusca Krause	Synonym		TRO
Oenothera fusiformis Munz & I.M. Johnst.	Synonym		TRO
Oenothera gauriflora Torr. & A. Gray	Synonym		TRO
Oenothera gauriflora var. hitchcockii H. Lév.	Synonym		TRO
Oenothera gaurodes Kuntze	Unresolved		WCSP (in review)
Oenothera gauroides Hornem.	Unresolved		WCSP (in review)
Oenothera gayana Steud.	Synonym		TRO
Oenothera gayophytum H.Lév.	Unresolved		WCSP (in review)
Oenothera genistifolia H.Lév.	Unresolved		WCSP (in review)
Oenothera germanica Boedijn	Unresolved		WCSP (in review)
Oenothera gigantea Huber	Unresolved		WCSP (in review)
Oenothera gigas de Vries	Unresolved		WCSP (in review)
Oenothera glabella Nutt.	Synonym		TRO
Oenothera glabra Mill.	Unresolved		WCSP (in review)
Oenothera glabrescens Phil.	Unresolved		WCSP (in review)
Oenothera glauca Michx.	Synonym		TRO
Oenothera glauca var. fraseri (Pursh) Torr. & A. Gray	Synonym		TRO
Oenothera glaucifolia W.L.Wagner & Hoch	Unresolved		WCSP (in review)
Oenothera glazioviana Micheli	Accepted		WCSP (in review)
Oenothera globularis G.Don	Unresolved		WCSP (in review)
Oenothera godetia Steud.	Unresolved		WCSP (in review)
Oenothera gouldii (P.H. Raven) S.L. Welsh & N.D. Atwood	Synonym		TRO
Oenothera graciliflora Hook. & Arn.	Synonym		TRO
Oenothera gracilis Schrad. ex Fisch. & C.A. Mey.	Synonym		TRO
Oenothera graminifolia H. Lév.	Synonym		TRO
Oenothera grandidentata Phil.	Unresolved		WCSP (in review)
Oenothera grandiflora Ruiz & Pav.	Synonym		TRO
Oenothera grandiflora L'Hér.	Synonym		TRO
Oenothera grandiflora var. tracyi (Bartlett) R.R. Gates	Unresolved		TRO
Oenothera grandifolia R.R.Gates	Unresolved		WCSP (in review)
Oenothera grandis (Britton) Smyth	Synonym		TRO
Oenothera graveolens Gilib.	Unresolved		WCSP (in review)
Oenothera greggii A. Gray	Synonym		TRO
Oenothera greggii var. pringlei Munz	Unresolved		WCSP (in review)
Oenothera greggii var. pubescens A. Gray	Synonym		TRO
Oenothera grisea W. Dietr.	Unresolved		TRO
Oenothera grisea (Bartlett) Rostanski	Accepted		TRO
Oenothera guadalupensis S. Watson	Synonym		TRO
Oenothera guadalupensis subsp. clementina P.H. Raven	Synonym		TRO
Oenothera guttata (Greene ex R.R. Gates) Cockerell	Accepted		TRO
Oenothera guttulata Geyer ex Hook.	Synonym		TRO
Oenothera hallii (Davidson) Munz	Synonym		TRO
Oenothera hamata (Wooton & Standl.) Tidestr.	Accepted		TRO
Oenothera hardhamiae (P.H.Raven) J.T.Howell	Unresolved		WCSP (in review)
Oenothera harringtonii W.L.Wagner, Stockh. & W.M.Klein	Unresolved		WCSP (in review)
Oenothera hartwegii Benth.	Synonym		TRO
Oenothera hartwegii var. fendleri (A. Gray) A. Gray	Synonym		TRO
Oenothera hartwegii subsp. fendleri (A. Gray) W.L. Wagner & Hoch	Unresolved		TRO
Oenothera hartwegii subsp. filifolia (Eastw.) W.L. Wagner & Hoch	Unresolved		TRO
Oenothera hartwegii subsp. maccartii (Shinners) W.L. Wagner & Hoch	Synonym		TRO
Oenothera hartwegii subsp. pubescens (A. Gray) W.L. Wagner & Hoch	Unresolved		TRO
Oenothera hartwegii var. toumeyi (Small) Munz	Synonym		TRO
Oenothera havardii S. Watson	Synonym		TRO
Oenothera hazelae R.R.Gates	Unresolved		WCSP (in review)
Oenothera hazeliae var. subterminalis (R.R. Gates) R.R. Gates	Unresolved		TRO
Oenothera hechtii W. Dietr.	Synonym		TRO
Oenothera heiniana Teyber	Unresolved		WCSP (in review)
Oenothera heribaudii H.Lév.	Unresolved		WCSP (in review)
Oenothera heterantha Nutt.	Synonym		TRO
Oenothera heterantha var. taraxacifolia S. Watson	Synonym		TRO
Oenothera heterochroma S.Watson	Synonym		WCSP (in review)
Oenothera heterochroma var. megalantha Munz	Synonym		WCSP (in review)
Oenothera heterochroma var. monoensis Munz	Synonym		TRO
Oenothera heterochroma subsp. monoensis (Munz) P.H. Raven	Synonym		TRO
Oenothera heterophylla Spach	Synonym		TRO
Oenothera heterophylla var. curtissii (Rose) Fosberg	Unresolved		TRO
Oenothera heterophylla var. rhombipetala (Nutt. ex Torr. & A. Gray) Fosberg	Unresolved		TRO
Oenothera hewettii Cockerell	Unresolved		WCSP (in review)
Oenothera hexandra (Ortega) W.L. Wagner & Hoch	Synonym		TRO
Oenothera hexandra subsp. gracilis (Wooton & Standl.) W.L. Wagner & Hoch	Synonym		TRO
Oenothera hexandra subsp. hexandra	Unresolved		TRO
Oenothera hilgardii Greene	Synonym		TRO
Oenothera hirsuta D. Dietr.	Synonym		TRO
Oenothera hirsuta (Spach) Steud.	Synonym		TRO
Oenothera hirsuta (Spach) Walp.	Accepted		TRO
Oenothera hirsutissima (A. Gray ex S. Watson) de Vries	Synonym		TRO
Oenothera hirsutissima (A. Gray ex S. Watson) Rydb.	Synonym		TRO
Oenothera hirta L.	Synonym		TRO
Oenothera hirta Link	Synonym		TRO
Oenothera hirta var. exfoliata (A. Nelson) Munz	Synonym		TRO
Oenothera hirta var. ignota (Jeps.) Munz	Synonym		TRO
Oenothera hirta var. jonesii H. Lév.	Synonym		TRO
Oenothera hirta f. reedii (Parish) Munz	Unresolved		TRO
Oenothera hirtella Greene	Synonym		TRO
Oenothera hispidula S.Watson	Unresolved		WCSP (in review)
Oenothera hoelscheri Renner & Rostanski	Unresolved		WCSP (in review)
Oenothera holosericea Tausch	Unresolved		WCSP (in review)
Oenothera hookeri Torr. & A. Gray	Synonym		TRO
Oenothera hookeri var. angustifolia R.R. Gates	Synonym		TRO
Oenothera hookeri subsp. angustifolia (R.R. Gates) Munz	Unresolved		TRO
Oenothera hookeri var. franciscana (Bartlett) R.R. Gates	Unresolved		TRO
Oenothera hookeri subsp. grisea (Bartlett) Munz	Synonym		TRO
Oenothera hookeri subsp. hirsutissima (A. Gray ex S. Watson) Munz	Synonym		TRO
Oenothera hookeri var. hirsutissima (A. Gray ex S. Watson) Munz	Synonym		TRO
Oenothera hookeri var. irrigua (Wooton & Standl.) R.R. Gates	Unresolved		TRO
Oenothera hookeri subsp. montereyensis Munz	Unresolved		WCSP (in review)
Oenothera hookeri var. ornata (A. Nelson) Munz	Synonym		TRO
Oenothera hookeri subsp. ornata (A. Nelson) Munz	Synonym		TRO
Oenothera hookeri subsp. venusta (Bartlett) Munz	Synonym		TRO
Oenothera hookeri var. venusta (Bartlett) R.R. Gates	Unresolved		TRO
Oenothera hookeri subsp. wolfii Munz	Synonym		TRO
Oenothera howardii (A.Nelson) W.L.Wagner	Unresolved		WCSP (in review)
Oenothera howardii M.E.Jones	Unresolved		WCSP (in review)
Oenothera humboldtii Engelm.	Unresolved		TRO
Oenothera humifusa Nutt.	Unresolved		TRO
Oenothera humilis Donn	Unresolved		WCSP (in review)
Oenothera hungarica Borbás	Unresolved		WCSP (in review)
Oenothera hybrida Michx.	Synonym		TRO
Oenothera hybrida var. ambigua (Nutt.) S.F. Blake	Unresolved		TRO
Oenothera hyssopifolia Molina	Unresolved		WCSP (in review)
Oenothera ibari Phil.	Unresolved		WCSP (in review)
Oenothera idahoensis Mulford	Synonym		TRO
Oenothera ignota (Jeps.) Munz	Synonym		TRO
Oenothera incana Nutt.	Unresolved		WCSP (in review)
Oenothera inconspecta Hudziok	Unresolved		WCSP (in review)
Oenothera indecora Cambess.	Accepted		TRO
Oenothera indivisa Hudziok	Unresolved		WCSP (in review)
Oenothera insignis Bartlett	Unresolved		WCSP (in review)
Oenothera insignis Greene	Unresolved		WCSP (in review)
Oenothera interior G.W.Stevens	Unresolved		WCSP (in review)
Oenothera intermedia R.R. Gates	Synonym		TRO
Oenothera irrigua Wooton & Standl.	Synonym		TRO
Oenothera issleri Renner ex Rostanski	Unresolved		WCSP (in review)
Oenothera italica Rostanski & Soldano	Unresolved		WCSP (in review)
Oenothera jacquinii Wehmer	Unresolved		WCSP (in review)
Oenothera jamesii Torr. & A. Gray	Accepted		TRO
Oenothera jepsonii Greene	Unresolved		WCSP (in review)
Oenothera johnsonii Parry	Synonym		TRO
Oenothera jonesii H.Lév.	Unresolved		WCSP (in review)
Oenothera jueterbogensis Hudziok	Unresolved		WCSP (in review)
Oenothera kernensis Munz	Synonym		TRO
Oenothera kernensis subsp. gilmanii (Munz) Munz	Synonym		TRO
Oenothera kleinii W.L.Wagner & S.W.Mill	Unresolved		WCSP (in review)
Oenothera kunthiana (Spach) Munz	Accepted		TRO
Oenothera kuntziana H.Lév.	Unresolved		WCSP (in review)
Oenothera laciniata Hill	Accepted		TRO
Oenothera laciniata var. grandiflora (S. Watson) B.L. Rob.	Accepted		TRO
Oenothera laciniata var. grandis (Britton) Britton	Synonym		TRO
Oenothera laciniata var. limensis Munz & I.M. Johnst.	Synonym		TRO
Oenothera laciniata var. mexicana (Spach) Small	Synonym		TRO
Oenothera laciniata var. pubescens (Willd. ex Spreng.) Munz	Synonym		TRO
Oenothera laciniata subsp. pubescens (Willd. ex Spreng.) Munz	Synonym		TRO
Oenothera laevifolia de Vries	Unresolved		WCSP (in review)
Oenothera laevigata Greene	Unresolved		WCSP (in review)
Oenothera laevigata var. scitula (Bartlett) R.R. Gates	Unresolved		TRO
Oenothera lamarkiana Ser.	Unresolved		WCSP (in review)
Oenothera lampsana Buckley	Synonym		TRO
Oenothera lasiocarpa Griseb.	Accepted		TRO
Oenothera latiflora Ser.	Synonym		TRO
Oenothera latifolia (Rydb.) Munz	Synonym		TRO
Oenothera lavandulifolia Torr. & A. Gray	Synonym		TRO
Oenothera lehmanniana Spach	Unresolved		WCSP (in review)
Oenothera leona Buckley	Unresolved		WCSP (in review)
Oenothera lepida D.Dietr.	Unresolved		WCSP (in review)
Oenothera lepida var. parviflora S. Watson	Synonym		TRO
Oenothera leptocarpa Greene	Synonym		TRO
Oenothera leptophylla (Torr. & A. Gray) Nutt. ex S. Watson	Synonym		TRO
Oenothera leucocarpa Comien ex Lehm.	Unresolved		WCSP (in review)
Oenothera leucophylla R.R.Gates	Unresolved		WCSP (in review)
Oenothera levigata Bartlett	Unresolved		WCSP (in review)
Oenothera lindheimeri (Engelm. & A. Gray) W.L. Wagner & Hoch	Synonym		TRO
Oenothera lindleyana Steud.	Unresolved		WCSP (in review)
Oenothera lindleyi Douglas	Synonym		WCSP (in review)
Oenothera linearis Michx.	Synonym		TRO
Oenothera linearis var. eamesii B.L. Rob.	Synonym		TRO
Oenothera linifolia Nutt.	Synonym		TRO
Oenothera lipsiensis Rostanski & Gutte	Unresolved		WCSP (in review)
Oenothera lithospermoides Nutt. ex Hook. & Arn.	Unresolved		WCSP (in review)
Oenothera litorea Bartlett	Synonym		TRO
Oenothera littoralis Schltdl.	Synonym		TRO
Oenothera longiflora L.	Synonym		TRO
Oenothera longipedicellata (Small) B.L. Rob.	Accepted		TRO
Oenothera longissima Rydb.	Unresolved		WCSP (in review)
Oenothera longissima subsp. clutei (A. Nelson) Munz	Unresolved		TRO
Oenothera longituba W. Dietr.	Accepted		TRO
Oenothera luciae (P.H.Raven) J.T.Howell	Unresolved		WCSP (in review)
Oenothera luciae-julianiae W.L.Wagner	Unresolved		WCSP (in review)
Oenothera lyrata H.Lév.	Unresolved		WCSP (in review)
Oenothera macbrideae (A. Nelson) A. Heller	Accepted		TRO
Oenothera macbrideae var. ornata (A. Nelson) R.R. Gates	Accepted		TRO
Oenothera macrocarpa Nutt.	Accepted		TRO
Oenothera macrocarpa subsp. fremontii (S. Watson) W.L. Wagner	Accepted		TRO
Oenothera macrocarpa var. incana (A. Gray) Reveal	Synonym		TRO
Oenothera macrocarpa subsp. incana (A. Gray) W.L. Wagner	Accepted		TRO
Oenothera macrocarpa var. oklahomensis (Norton) Reveal	Synonym		TRO
Oenothera macrocarpa subsp. oklahomensis (Norton) W.L. Wagner	Accepted		TRO
Oenothera macrosceles A. Gray	Accepted		TRO
Oenothera macrosiphon Lehm.	Unresolved		WCSP (in review)
Oenothera macrosiphon Wooton & Standl.	Unresolved		WCSP (in review)
Oenothera macrosperma (Hudziok) Hudziok	Unresolved		WCSP (in review)
Oenothera maculata Steud.	Unresolved		WCSP (in review)
Oenothera magallanica Phil.	Accepted		WCSP (in review)
Oenothera magdalena R.R.Gates	Unresolved		WCSP (in review)
Oenothera malacophylla Spach	Unresolved		WCSP (in review)
Oenothera mandonii H. Lév.	Synonym		TRO
Oenothera marginata Nutt. ex Hook. & Arn.	Synonym		TRO
Oenothera marginata var. purpurea S. Watson	Synonym		TRO
Oenothera marinellae Soldano	Unresolved		WCSP (in review)
Oenothera maritima Nutt. ex Hook. & Arn.	Unresolved		WCSP (in review)
Oenothera maysillesii Munz	Unresolved		WCSP (in review)
Oenothera mckelveyae (Munz) W.L. Wagner & Hoch	Accepted		TRO
Oenothera media Link	Unresolved		WCSP (in review)
Oenothera mediomarchica Hudziok	Unresolved		WCSP (in review)
Oenothera megalantha (Munz) P.H. Raven	Synonym		TRO
Oenothera mendocinensis Gillies ex Hook. & Arn.	Accepted		TRO
Oenothera mexicana Spach	Synonym		TRO
Oenothera micans Tausch	Unresolved		WCSP (in review)
Oenothera micrantha Hornem. ex Spreng.	Synonym		TRO
Oenothera micrantha var. abramsii (J.F. Macbr.) Jeps.	Unresolved		TRO
Oenothera micrantha var. acuminata (Phil.) Munz	Synonym		TRO
Oenothera micrantha var. exfoliata (A. Nelson) Munz	Unresolved		TRO
Oenothera micrantha var. hirtella (Greene) Jeps.	Synonym		TRO
Oenothera micrantha var. ignota Jeps.	Synonym		TRO
Oenothera micrantha var. jonesii (H. Lév.) Munz	Unresolved		TRO
Oenothera micrantha var. reedii (Parish) Jeps.	Synonym		TRO
Oenothera millersii de Vries	Unresolved		WCSP (in review)
Oenothera minima Pursh	Unresolved		WCSP (in review)
Oenothera minor (A. Nelson) Munz	Synonym		TRO
Oenothera minutiflora D.Dietr.	Unresolved		WCSP (in review)
Oenothera missouriensis Sims	Synonym		TRO
Oenothera missouriensis var. incana A. Gray	Synonym		TRO
Oenothera missouriensis var. oklahomensis (Norton) Munz	Synonym		TRO
Oenothera mollis Renner	Unresolved		WCSP (in review)
Oenothera mollissima L.	Accepted		TRO
Oenothera mollissima var. longiflora (L.) Hassl.	Synonym		TRO
Oenothera mollissima var. paraguayensis Chodat	Synonym		TRO
Oenothera montana Nutt.	Accepted		TRO
Oenothera montereyensis (Munz) Rostanski	Unresolved		WCSP (in review)
Oenothera montevidensis W. Dietr.	Accepted		TRO
Oenothera moravica V.Jehlík & Rostanski	Unresolved		WCSP (in review)
Oenothera muelleri Munz	Unresolved		WCSP (in review)
Oenothera multicaulis Ruiz & Pav.	Accepted		TRO
Oenothera multicaulis var. petiolaris BALL	Synonym		TRO
Oenothera multicaulis var. tarquensis (Kunth) Munz & I.M. Johnst.	Synonym		TRO
Oenothera multijuga S.Watson	Synonym		WCSP (in review)
Oenothera multijuga var. parviflora (S.Watson) Munz	Synonym		WCSP (in review)
Oenothera munzii P.H.Raven	Synonym		WCSP (in review)
Oenothera murdockii S.L.Welsh & N.D.Atwood	Unresolved		WCSP (in review)
Oenothera muricata L.	Synonym		TRO
Oenothera muricata var. canescens (Torr. & A. Gray) B.L. Rob.	Unresolved		TRO
Oenothera mutabilis Steud.	Synonym		TRO
Oenothera nana Griseb.	Accepted		TRO
Oenothera nanella de Vries	Unresolved		WCSP (in review)
Oenothera neomexicana (Small) Munz	Synonym		TRO
Oenothera neomexicana (Small) Tidestr.	Accepted		TRO
Oenothera nervosa Hornem. ex Sweet	Unresolved		WCSP (in review)
Oenothera nevadensis Kellogg	Synonym		WCSP (in review)
Oenothera niagarensis R.R. Gates	Synonym		TRO
Oenothera nissensis Rostanski	Unresolved		WCSP (in review)
Oenothera nitida Greene	Synonym		TRO
Oenothera niveifolia Gand.	Unresolved		WCSP (in review)
Oenothera nivertiana (Goujon) N.E.Br.	Unresolved		WCSP (in review)
Oenothera nobska Sturtev.	Synonym		TRO
Oenothera nocturna Jacq.	Accepted		TRO
Oenothera nova-rostanski	Unresolved		TRO
Oenothera novae-scotiae R.R.Gates	Unresolved		WCSP (in review)
Oenothera novae-scotiae var. intermedia (R.R. Gates) R.R. Gates	Unresolved		TRO
Oenothera nuda Renner ex Rostanski	Unresolved		WCSP (in review)
Oenothera numismatica Bartlett	Synonym		TRO
Oenothera nutans G.F. Atk. & Bartlett	Synonym		TRO
Oenothera nuttallii Sweet	Synonym		TRO
Oenothera nyctaginifolia Small	Synonym		TRO
Oenothera oakesiana (A. Gray) J.W. Robbins ex S. Watson & J.M. Coult.	Accepted		TRO
Oenothera oakesiana var. nobska (Sturtev.) R.R. Gates	Accepted		TRO
Oenothera oakesiana var. tidestromii (Bartlett) R.R. Gates	Accepted		TRO
Oenothera oblonga de Vries	Unresolved		WCSP (in review)
Oenothera obscurifolia Hudziok	Unresolved		WCSP (in review)
Oenothera obtusifolia D.Dietr.	Unresolved		WCSP (in review)
Oenothera octolineata Hudziok	Unresolved		WCSP (in review)
Oenothera octovalvis Jacq.	Synonym		WCSP (in review)
Oenothera odorata Jacq.	Accepted		TRO
Oenothera odoratissima Tausch	Unresolved		WCSP (in review)
Oenothera oehlkersi Kappus	Unresolved		TRO
Oenothera oklahomensis (Norton) Hitchc.	Synonym		TRO
Oenothera organensis Munz ex Emers.	Unresolved		WCSP (in review)
Oenothera orizabae W.L. Wagner	Accepted		TRO
Oenothera ornata (A. Nelson) Rydb.	Synonym		TRO
Oenothera ostreae Sturtev.	Synonym		TRO
Oenothera ovata Nutt.	Synonym		TRO
Oenothera oxypetala de Vries	Unresolved		WCSP (in review)
Oenothera pachycarpa Renner ex Rudloff	Unresolved		WCSP (in review)
Oenothera pallida Douglas ex Lindl.	Synonym		TRO
Oenothera pallida var. californica (S. Watson) Jeps.	Unresolved		TRO
Oenothera pallida subsp. gypsophila (Eastw.) Munz & W.M. Klein	Unresolved		TRO
Oenothera pallida var. latifolia Rydb.	Synonym		TRO
Oenothera pallida subsp. latifolia (Rydb.) Munz	Unresolved		TRO
Oenothera pallida var. leptophylla Torr. & A. Gray	Synonym		TRO
Oenothera pallida subsp. runcinata (Engelm.) Munz & W.M. Klein	Synonym		TRO
Oenothera pallida var. runcinata (Engelm.) Cronquist	Unresolved		TRO
Oenothera pallida subsp. trichocalyx (Nutt.) Munz & W.M. Klein	Synonym		TRO
Oenothera pallida var. trichocalyx (Nutt.) Dorn	Unresolved		TRO
Oenothera pallidula (Munz) Munz	Synonym		WCSP (in review)
Oenothera palmeri S. Watson	Synonym		TRO
Oenothera paludosa Featherm.	Unresolved		WCSP (in review)
Oenothera paradoxa Hudziok	Unresolved		WCSP (in review)
Oenothera paralamarckiana R.R.Gates	Unresolved		WCSP (in review)
Oenothera parodiana Munz	Accepted		TRO
Oenothera parodiana subsp. brasiliensis W. Dietr.	Synonym		TRO
Oenothera parodiana subsp. strigulosa W. Dietr.	Synonym		TRO
Oenothera parryi S.Watson	Synonym		WCSP (in review)
Oenothera parryi f. tenuissima (M.E.Jones)	Synonym		WCSP (in review)
Oenothera parva R.R. Gates	Synonym		TRO
Oenothera parviflora L.	Accepted		TRO
Oenothera parviflora var. angustissima (R.R. Gates) Wiegand	Synonym		TRO
Oenothera parviflora subsp. angustissima (R.R. Gates) Munz	Accepted		TRO
Oenothera parviflora var. oakesiana (A. Gray) Fernald	Accepted		TRO
Oenothera parvula Nutt.	Synonym		WCSP (in review)
Oenothera patriciae W.L.Wagner & Hoch	Unresolved		WCSP (in review)
Oenothera pedemontana Soldano	Unresolved		WCSP (in review)
Oenothera pedunculifolia W. Dietr.	Accepted		TRO
Oenothera pellegrinii Soldano	Unresolved		WCSP (in review)
Oenothera pennellii Munz	Unresolved		WCSP (in review)
Oenothera perampla Graham	Unresolved		WCSP (in review)
Oenothera perangusta R.R.Gates	Unresolved		WCSP (in review)
Oenothera perennis L.	Accepted		WCSP (in review)
Oenothera perennis var. rectipilis (S.F. Blake) S.F. Blake	Accepted		TRO
Oenothera peruana W. Dietr.	Accepted		TRO
Oenothera phlebophylla Tidestr.	Unresolved		WCSP (in review)
Oenothera picensis Phil.	Unresolved		WCSP (in review)
Oenothera pilosella Raf.	Synonym		TRO
Oenothera pilosella subsp. sessilis (Pennell) Straley	Synonym		TRO
Oenothera pilosella var. sessilis (Pennell) B.L. Turner	Unresolved		TRO
Oenothera pinnatifida Kunth	Synonym		TRO
Oenothera platanorum P.H.Raven & D.R.Parn.	Unresolved		WCSP (in review)
Oenothera plicatula Lutz	Unresolved		WCSP (in review)
Oenothera × polgari Rostanski	Unresolved		WCSP (in review)
Oenothera polymorpha H.Lév.	Unresolved		WCSP (in review)
Oenothera polymorpha var. stricta (Ledeb. ex Link) H. Lév.	Synonym		TRO
Oenothera prasina Greene	Unresolved		WCSP (in review)
Oenothera pratensis (Small) B.L. Rob.	Accepted		TRO
Oenothera pratincola Bartlett	Unresolved		WCSP (in review)
Oenothera pratincola Greene	Unresolved		WCSP (in review)
Oenothera pratincola var. numismatica (Bartlett) R.R. Gates	Unresolved		TRO
Oenothera previpetala Dietrich	Unresolved		TRO
Oenothera primiveris A. Gray	Accepted		TRO
Oenothera primiveris var. bufonis (M.E. Jones) Cronquist	Accepted		TRO
Oenothera primiveris subsp. bufonis (M.E. Jones) Munz	Synonym		TRO
Oenothera primiveris subsp. caulescens (Munz) Munz	Accepted		TRO
Oenothera primiveris var. caulescens Munz	Synonym		TRO
Oenothera primuloidea H.Lév.	Unresolved		WCSP (in review)
Oenothera pringlei (Munz) Munz	Unresolved		WCSP (in review)
Oenothera prismatica H.Lév.	Unresolved		WCSP (in review)
Oenothera prismatica var. amoena (Lehm.) H. Lév.	Synonym		TRO
Oenothera procera Wooton & Standl.	Unresolved		WCSP (in review)
Oenothera propinqua Spach	Synonym		TRO
Oenothera prostrata Ruiz & Pav.	Synonym		TRO
Oenothera psammophila (A. Nelson & J.F. Macbr.) Wagner et al.	Accepted		TRO
Oenothera × pseudocernua Hudziok	Unresolved		WCSP (in review)
Oenothera pseudochicaginensis Rostanski	Unresolved		WCSP (in review)
Oenothera pseudoelongata W.Dietr.	Unresolved		WCSP (in review)
Oenothera pseudolongiflora W. Dietr.	Synonym		TRO
Oenothera psycrophila BALL	Synonym		TRO
Oenothera pterosperma S.Watson	Synonym		WCSP (in review)
Oenothera pubens (S. Watson) Munz	Synonym		TRO
Oenothera pubescens Willd.	Synonym		TRO
Oenothera pubescens Willd. ex Spreng.	Accepted		TRO
Oenothera pulchella E.H.L.Krause	Unresolved		WCSP (in review)
Oenothera pulchella H.Lév.	Unresolved		WCSP (in review)
Oenothera pumila L.	Synonym		TRO
Oenothera pumila var. chrysantha (Michx.) Gordinier & Howe	Unresolved		TRO
Oenothera pumila var. pusilla (Michx.) Torr. & A. Gray	Unresolved		TRO
Oenothera pumila var. rectipilis S.F. Blake	Synonym		TRO
Oenothera punae Kuntze	Accepted		TRO
Oenothera punctata H.Lév.	Unresolved		WCSP (in review)
Oenothera × punctulata Rostanski & Gutte	Unresolved		WCSP (in review)
Oenothera × purpurans Borbás	Unresolved		WCSP (in review)
Oenothera purpurata Kleb.	Unresolved		WCSP (in review)
Oenothera purpurea Lam.	Synonym		TRO
Oenothera purpurea Curtis	Synonym		TRO
Oenothera purpusii Munz	Synonym		TRO
Oenothera purshiana Steud.	Unresolved		WCSP (in review)
Oenothera purshii G.Don	Unresolved		WCSP (in review)
Oenothera pusilla Michx.	Synonym		TRO
Oenothera pycnocarpa G.F. Atk. & Bartlett	Synonym		TRO
Oenothera pygmaea Douglas	Synonym		WCSP (in review)
Oenothera pygmaea Speg.	Synonym		TRO
Oenothera pyramidalis H.Lév.	Unresolved		WCSP (in review)
Oenothera pyramidiflora Hudziok	Unresolved		WCSP (in review)
Oenothera quadricolumnata Noronha	Unresolved		WCSP (in review)
Oenothera quadrivulnera Douglas ex Lindl.	Synonym		WCSP (in review)
Oenothera quadrivulnera var. hirsuta Kellogg	Synonym		TRO
Oenothera racemosa Nutt.	Unresolved		WCSP (in review)
Oenothera ramosissima Nutt.	Unresolved		WCSP (in review)
Oenothera ramulosa Steud.	Unresolved		WCSP (in review)
Oenothera ravenii W.Dietr.	Unresolved		WCSP (in review)
Oenothera ravenii subsp. argentinae W. Dietr.	Synonym		TRO
Oenothera ravenii subsp. chilensis W. Dietr.	Unresolved		TRO
Oenothera recurva W.Dietr.	Unresolved		WCSP (in review)
Oenothera refracta S.Watson	Synonym		WCSP (in review)
Oenothera renneri H.Scholz	Unresolved		WCSP (in review)
Oenothera repanda Medik.	Unresolved		WCSP (in review)
Oenothera repandodentata R.R. Gates	Synonym		TRO
Oenothera reynoldsii Bartlett	Unresolved		WCSP (in review)
Oenothera reynoldsii Greene	Unresolved		WCSP (in review)
Oenothera rhizocarpa Spreng.	Unresolved		WCSP (in review)
Oenothera rhizomata A. Nelson	Unresolved		TRO
Oenothera rhombipetala Nutt. ex Torr. & A. Gray	Synonym		TRO
Oenothera rhomboidea H.Lév.	Unresolved		WCSP (in review)
Oenothera rigida Gillies ex Hook. & Arn.	Unresolved		WCSP (in review)
Oenothera × rigirubata Renner ex Gutte & Rostanski	Unresolved		WCSP (in review)
Oenothera riparia Nutt.	Synonym		TRO
Oenothera riskindii W.L.Wagner	Unresolved		WCSP (in review)
Oenothera rivadaviae W. Dietr.	Accepted		TRO
Oenothera robinsonii Bartlett	Unresolved		WCSP (in review)
Oenothera roemeriana Scheele	Unresolved		WCSP (in review)
Oenothera romanzovii Ledeb. ex Hornem.	Synonym		TRO
Oenothera romanzowii Ledeb.	Unresolved		WCSP (in review)
Oenothera romanzowii Ledeb. ex Hornem.	Unresolved		WCSP (in review)
Oenothera rosea L'Hér. ex Aiton	Accepted		TRO
Oenothera rosea var. parvifolia J.M. Coult.	Synonym		TRO
Oenothera roseoalba Bernh. ex Rchb.f.	Unresolved		WCSP (in review)
Oenothera rostanskii V.Jehlík	Unresolved		WCSP (in review)
Oenothera royfraseri R.R. Gates	Synonym		TRO
Oenothera rubescens Greene	Unresolved		WCSP (in review)
Oenothera rubescens Bartlett	Unresolved		WCSP (in review)
Oenothera rubicunda Torr. & A.Gray	Unresolved		WCSP (in review)
Oenothera rubicunda Durand	Unresolved		WCSP (in review)
Oenothera rubicunda Hook. & Arn.	Unresolved		WCSP (in review)
Oenothera rubida Rusby	Synonym		TRO
Oenothera rubiennis de Vries	Unresolved		WCSP (in review)
Oenothera rubra Cav.	Synonym		TRO
Oenothera rubricalyx R.R.Gates	Unresolved		WCSP (in review)
Oenothera rubricapitata R.R.Gates	Unresolved		WCSP (in review)
Oenothera rubricauloides Rostanski	Unresolved		WCSP (in review)
Oenothera rubricuspis Renner ex Rostanski	Unresolved		WCSP (in review)
Oenothera rubricuspis Renner	Unresolved		WCSP (in review)
Oenothera rubrinervis de Vries	Unresolved		WCSP (in review)
Oenothera rubrinervoides R.R.Gates	Unresolved		WCSP (in review)
Oenothera rubritincta R.R.Gates	Unresolved		WCSP (in review)
Oenothera rudalis Greene	Unresolved		WCSP (in review)
Oenothera ruderalis Bartlett	Unresolved		WCSP (in review)
Oenothera runcinata (Engelm.) Munz	Synonym		TRO
Oenothera runcinata (Engelm.) Tidestr.	Synonym		TRO
Oenothera runcinata var. brevifolia (Engelm.) Munz	Unresolved		TRO
Oenothera runcinata var. gypsophila (Eastw.) Munz	Synonym		TRO
Oenothera runcinata var. leucotricha (Wooton & Standl.) Munz	Unresolved		TRO
Oenothera rutila Davidson	Synonym		TRO
Oenothera rydbergii House	Unresolved		WCSP (in review)
Oenothera sabulosa Farw.	Unresolved		WCSP (in review)
Oenothera sackvillensis R.R.Gates	Unresolved		WCSP (in review)
Oenothera sackvillensis var. royfraseri (R.R. Gates) R.R. Gates	Unresolved		TRO
Oenothera salicastrum de Vries	Unresolved		WCSP (in review)
Oenothera salicifolia Desf. ex Ser.	Synonym		TRO
Oenothera salicina Nutt.	Unresolved		WCSP (in review)
Oenothera sandiana Hassk.	Accepted		TRO
Oenothera santarii W. Dietr.	Accepted		TRO
Oenothera scabra K. Krause	Synonym		TRO
Oenothera scandinavica Rostanski	Unresolved		WCSP (in review)
Oenothera scapigera Pursh	Unresolved		WCSP (in review)
Oenothera scapoidea Torr. & A.Gray	Synonym		WCSP (in review)
Oenothera scapoidea var. aurantiaca S.Watson	Synonym		WCSP (in review)
Oenothera scapoidea subsp. brachycarpa P.H.Raven	Synonym		WCSP (in review)
Oenothera scapoidea var. claviformis (Torr. & Frém.) S. Watson	Synonym		TRO
Oenothera scapoidea var. eastwoodiae Munz	Synonym		WCSP (in review)
Oenothera scapoidea subsp. macrocarpa P.H.Raven	Synonym		WCSP (in review)
Oenothera scapoidea var. parryi (S. Watson) M.E. Jones	Synonym		TRO
Oenothera scapoidea var. purpurascens S. Watson	Synonym		TRO
Oenothera scapoidea var. seorsa (A. Nelson) Munz	Synonym		TRO
Oenothera scapoidea var. tortilis Jeps.	Synonym		WCSP (in review)
Oenothera scapoidea subsp. utahensis P.H.Raven	Synonym		WCSP (in review)
Oenothera sceptrostigma Brandegee	Synonym		WCSP (in review)
Oenothera scintillans de Vries	Unresolved		WCSP (in review)
Oenothera scitula Bartlett	Synonym		TRO
Oenothera scoparia Ruiz & Pav. ex D.Don	Unresolved		WCSP (in review)
Oenothera seifrizii Munz	Accepted		WCSP (in review)
Oenothera sellowii Link & Otto ex Steud.	Unresolved		WCSP (in review)
Oenothera semilata de Vries	Unresolved		WCSP (in review)
Oenothera sericea Kuntze	Unresolved		TRO
Oenothera serotina Lehm.	Unresolved		WCSP (in review)
Oenothera serotina Sweet	Unresolved		WCSP (in review)
Oenothera serratifolia K. Krause	Synonym		TRO
Oenothera serrulata Nutt.	Synonym		TRO
Oenothera serrulata var. pinifolia Engelm. ex A. Gray	Synonym		TRO
Oenothera serrulata subsp. pinifolia (Engelm. ex A. Gray) Munz	Synonym		TRO
Oenothera serrulata var. spinulosa Torr. & A. Gray	Synonym		TRO
Oenothera × serrulatoides H.Lév.	Unresolved		WCSP (in review)
Oenothera sesitensis Soldano	Unresolved		WCSP (in review)
Oenothera sessilis (Pennell) Munz	Synonym		TRO
Oenothera shimekii H.Lév. & Guffroy	Unresolved		WCSP (in review)
Oenothera shulliana A.H.Sturtev.	Unresolved		WCSP (in review)
Oenothera siambonensis W. Dietr.	Accepted		TRO
Oenothera silesiaca Renner	Unresolved		WCSP (in review)
Oenothera siliquosa Nutt.	Unresolved		WCSP (in review)
Oenothera simplex (Small) Tidestr.	Accepted		TRO
Oenothera simsiana Ser.	Synonym		TRO
Oenothera simulans (Small) W.L. Wagner & Hoch	Synonym		TRO
Oenothera sinuata L.	Synonym		TRO
Oenothera sinuata var. grandiflora S. Watson	Synonym		TRO
Oenothera sinuata var. grandis Britton	Synonym		TRO
Oenothera sinuata var. humifusa (Nutt.) Torr. & A. Gray	Unresolved		TRO
Oenothera sinuosa W.L.Wagner & Hoch	Unresolved		WCSP (in review)
Oenothera × slovaca V.Jehlík & Rostanski	Unresolved		WCSP (in review)
Oenothera spachiana Torr. & A. Gray	Synonym		TRO
Oenothera spachii D.Dietr.	Unresolved		WCSP (in review)
Oenothera spathulata de Vries	Unresolved		WCSP (in review)
Oenothera specicola P.H.Raven	Synonym		WCSP (in review)
Oenothera specicola subsp. hesperia P.H.Raven	Synonym		WCSP (in review)
Oenothera speciosa Nutt.	Accepted		WCSP (in review)
Oenothera speciosa var. berlandieri (Spach) Munz	Accepted		TRO
Oenothera speciosa var. childsii (L.H. Bailey) Munz	Accepted		TRO
Oenothera spectabilis Bernh. ex Steud.	Unresolved		WCSP (in review)
Oenothera spectabilis Spach	Unresolved		WCSP (in review)
Oenothera spectabilis Lehm.	Unresolved		WCSP (in review)
Oenothera spinulosa Nutt.	Unresolved		WCSP (in review)
Oenothera spiralis Hook.	Unresolved		WCSP (in review)
Oenothera spiralis var. nitida (Greene) Jeps.	Synonym		TRO
Oenothera spiralis f. viridescens (Hook.) H. Lév.	Synonym		TRO
Oenothera spiralis var. viridescens (Hook.) Jeps.	Synonym		TRO
Oenothera stenomeres Bartlett	Unresolved		WCSP (in review)
Oenothera stenopetala E.P. Bicknell	Synonym		TRO
Oenothera stenophylla Steud.	Unresolved		WCSP (in review)
Oenothera steubelii Hieron.	Synonym		TRO
Oenothera striata Ledeb. ex Link	Unresolved		WCSP (in review)
Oenothera stricta Ledeb. ex Link	Accepted		WCSP (in review)
Oenothera stricta subsp. altissima W. Dietr.	Accepted		TRO
Oenothera stricta subsp. argentinae W. Dietr.	Synonym		TRO
Oenothera strigosa (Rydb.) Mack. & Bush	Synonym		TRO
Oenothera strigosa (Rydb.) Garrett	Synonym		TRO
Oenothera strigosa var. albinervis (R.R. Gates) R.R. Gates	Unresolved		TRO
Oenothera strigosa var. cheradolphila (Bartlett) R.R. Gates	Unresolved		TRO
Oenothera strigosa var. cockerellii (Bartlett & de Vries) R.R. Gates	Unresolved		TRO
Oenothera strigosa var. depressa (Greene) D.M. Gates	Unresolved		TRO
Oenothera strigosa var. subulifera (Rydb.) R.R. Gates	Unresolved		TRO
Oenothera strigulosa (Fisch. & C.A. Mey.) Torr. & A. Gray	Synonym		TRO
Oenothera strigulosa var. epilobioides Greene	Synonym		TRO
Oenothera strigulosa var. pubens S. Watson	Synonym		TRO
Oenothera stubbei W.Dietr., P.H.Raven & W.L.Wagner	Unresolved		WCSP (in review)
Oenothera stucchii Soldano	Unresolved		WCSP (in review)
Oenothera stuebelii Hieron.	Synonym		TRO
Oenothera suaveolens Desf.	Synonym		TRO
Oenothera subacaulis (Pursh) Garrett	Synonym		TRO
Oenothera subacaulis (Pursh) Jeps.	Synonym		TRO
Oenothera subacaulis var. taraxacifolia (S. Watson) Jeps.	Unresolved		TRO
Oenothera subglobosa (Small) Weath. & Griscom	Synonym		TRO
Oenothera subglobosa var. arenicola (Small) Weath. & Griscom	Unresolved		TRO
Oenothera subincana Steud.	Unresolved		WCSP (in review)
Oenothera sublinearis de Vries	Unresolved		WCSP (in review)
Oenothera subovata de Vries	Unresolved		WCSP (in review)
Oenothera subterminalis R.R. Gates	Synonym		TRO
Oenothera subulata Ruiz & Pav.	Synonym		TRO
Oenothera subulifera Rydb.	Synonym		TRO
Oenothera suffrutescens (Ser.) W.L. Wagner & Hoch	Synonym		TRO
Oenothera suffulta (Engelm. ex A. Gray) W.L. Wagner & Hoch	Synonym		TRO
Oenothera suffulta subsp. nealleyi (J.M. Coult.) W.L. Wagner & Hoch	Synonym		TRO
Oenothera sulfurea H.Lév.	Unresolved		WCSP (in review)
Oenothera suzukiana R.Jean & R.Linder	Unresolved		WCSP (in review)
Oenothera syrticola Greene	Unresolved		WCSP (in review)
Oenothera syrticola Bartlett	Unresolved		WCSP (in review)
Oenothera syrticola var. litorea (Bartlett) R.R. Gates	Unresolved		TRO
Oenothera × tacikii Rostanski	Unresolved		WCSP (in review)
Oenothera tafiensis W.Dietr.	Unresolved		WCSP (in review)
Oenothera tamrae W.Dietr. & W.L.Wagner	Unresolved		WCSP (in review)
Oenothera tanacetifolia Torr. & A. Gray	Synonym		TRO
Oenothera taraxacifolia H.Lév. & Guffroy	Unresolved		WCSP (in review)
Oenothera taraxacifolia Sweet	Unresolved		WCSP (in review)
Oenothera taraxacifolia var. ecristata (M.E. Jones) H. Lév. & Guffroy	Unresolved		TRO
Oenothera taraxacoides (Wooton & Standl.) Munz	Synonym		TRO
Oenothera taraxacoides (Wooton & Standl.) Tidestr.	Synonym		TRO
Oenothera × taraxeri Sotti	Unresolved		WCSP (in review)
Oenothera tardiflora R.R.Gates	Unresolved		WCSP (in review)
Oenothera tarijensis W.Dietr.	Unresolved		WCSP (in review)
Oenothera tarquensis Kunth	Synonym		TRO
Oenothera tasmanica Hook. f.	Synonym		TRO
Oenothera × teframila de Andrade	Unresolved		WCSP (in review)
Oenothera tenella Cav.	Synonym		TRO
Oenothera tenuifolia Cav.	Synonym		TRO
Oenothera tenuissima M.E.Jones	Synonym		WCSP (in review)
Oenothera tetragona Roth	Synonym		TRO
Oenothera tetragona var. brevistipata (Pennell) Munz	Unresolved		TRO
Oenothera tetragona var. fraseri (Pursh) Munz	Unresolved		TRO
Oenothera tetragona subsp. glauca (Michx.) Munz	Synonym		TRO
Oenothera tetragona var. hybrida (Michx.) Fernald	Unresolved		TRO
Oenothera tetragona f. hybrida (Michx.) Munz	Synonym		TRO
Oenothera tetragona var. latifolia (Rydb.) Fernald	Unresolved		TRO
Oenothera tetragona f. latifolia (Rydb.) Munz	Synonym		TRO
Oenothera tetragona var. longistipata (Pennell) Munz	Unresolved		TRO
Oenothera tetragona var. riparia (Nutt.) Munz	Unresolved		TRO
Oenothera tetragona var. velutina (Pennell) Munz	Unresolved		TRO
Oenothera tetraptera Cav.	Accepted		WCSP (in review)
Oenothera tetraptera var. childsii L.H. Bailey	Synonym		TRO
Oenothera tetraptera var. immutabilis H. Lév.	Synonym		TRO
Oenothera texensis P.H. Raven & D.R. Parn.	Accepted		TRO
Oenothera thalassaphila Brandegee	Synonym		TRO
Oenothera tidestromii Bartlett	Synonym		TRO
Oenothera torreyi S. Watson	Synonym		TRO
Oenothera torreyoides H.Lév.	Unresolved		WCSP (in review)
Oenothera torulosa H.Lév.	Unresolved		WCSP (in review)
Oenothera torulosa f. cruciata (S. Watson) H. Lév.	Synonym		TRO
Oenothera torulosa f. mixta H. Lév.	Synonym		TRO
Oenothera toumeyi (Small) Tidestr.	Synonym		TRO
Oenothera tracyi Bartlett	Synonym		TRO
Oenothera triangulata (Buckley) W.L. Wagner & Hoch	Synonym		TRO
Oenothera trichocalyx Nutt.	Synonym		TRO
Oenothera trichocalyx var. cineracea Jeps.	Synonym		TRO
Oenothera trichocalyx var. cognata Jeps.	Synonym		TRO
Oenothera triloba Nutt.	Synonym		TRO
Oenothera triloba var. ecristata M.E. Jones	Synonym		TRO
Oenothera tubicula A. Gray	Synonym		TRO
Oenothera tubicula var. filifolia Eastw.	Synonym		TRO
Oenothera tubicula subsp. strigosula (Towner) W.L. Wagner & Hoch	Synonym		TRO
Oenothera tubifera Ser.	Synonym		TRO
Oenothera tucumanensis W. Dietr.	Synonym		TRO
Oenothera turoviensis Rostanski	Unresolved		WCSP (in review)
Oenothera undulata W.T.Aiton	Unresolved		WCSP (in review)
Oenothera uniflora Gill. ex Hook. & Arn. in Hook.	Synonym		TRO
Oenothera utahensis (Small) Garrett	Accepted		TRO
Oenothera valdiviana Phil.	Synonym		TRO
Oenothera variifolia Steud.	Unresolved		WCSP (in review)
Oenothera veitchiana (Hook.) Tidestr.	Accepted		TRO
Oenothera velutinifolia Hudziok	Unresolved		WCSP (in review)
Oenothera venusta Bartlett	Synonym		TRO
Oenothera venusta var. grisea Bartlett	Synonym		TRO
Oenothera verrucosa I.M. Johnst.	Accepted		TRO
Oenothera versicolor Lehm.	Accepted		TRO
Oenothera victorinii R.R.Gates & Catches.	Unresolved		WCSP (in review)
Oenothera villaricae W. Dietr.	Accepted		TRO
Oenothera villosa Thunb.	Accepted		WCSP (in review)
Oenothera villosa subsp. strigosa (Rydb.) W. Dietr. & P.H. Raven	Synonym		TRO
Oenothera villosa var. strigosa (Rydb.) Dorn	Synonym		TRO
Oenothera villosa subsp. villosa	Accepted		TRO
Oenothera viminea Douglas	Synonym		TRO
Oenothera viminea var. parviflora Hook. & Arn.	Synonym		TRO
Oenothera vinosa (Lindl.) Torr. & A. Gray	Synonym		TRO
Oenothera virgata Ruiz & Pav.	Synonym		TRO
Oenothera viridescens Hook.	Synonym		TRO
Oenothera viscosa Raf.	Unresolved		WCSP (in review)
Oenothera volkmannii H.Lév. & Guffroy	Unresolved		WCSP (in review)
Oenothera vrieseana H.Lév.	Unresolved		WCSP (in review)
Oenothera walkeri (A.Nelson) P.H.Raven	Synonym		WCSP (in review)
Oenothera walkeri subsp. tortilis (Jeps.) P.H. Raven	Synonym		TRO
Oenothera walpersii Donn.Sm.	Unresolved		WCSP (in review)
Oenothera watsonii Tidestr.	Unresolved		WCSP (in review)
Oenothera webbiana Steud.	Unresolved		WCSP (in review)
Oenothera weberbaueri Krause	Synonym		TRO
Oenothera whitneyi A. Gray	Synonym		TRO
Oenothera wienii Renner ex Rostanski	Unresolved		WCSP (in review)
Oenothera wigginsii W.E.Klein	Unresolved		WCSP (in review)
Oenothera williamsonii S.Watson	Unresolved		WCSP (in review)
Oenothera wislizeni H.Lév.	Unresolved		WCSP (in review)
Oenothera wolfii (Munz) P.H. Raven, W. Dietr. & Stubbe	Accepted		TRO
Oenothera wratislaviensis Rostanski	Unresolved		WCSP (in review)
Oenothera wrightii A. Gray	Synonym		TRO
Oenothera xenogaura W.L.Wagner & Hoch	Unresolved		WCSP (in review)
Oenothera xylocarpa Coville	Synonym		TRO
Oenothera youngii L.H.Bailey	Unresolved		WCSP (in review)