List of Oenothera species
Subdivisions of the genus Oenothera in the Onagraceae (evening primrose) family : [1] [2][3]
Section Anogra
Oenothera sect. Angora (Spach) W.L.Wagner & Hoch 2007 – western North America in dry, sandy soils in deserts, grasslands, and forest openings, up to 2000 m. elevation. [2]
- Oenothera arizonica (Munz) W.L.Wagner 1998 – California evening primrose (Arizona & Mexico) [4]
- Oenothera californica (S.Watson) S.Watson 1876 – California evening primrose
- O. californica ssp. avita W.M.Klein 1962
- O. californica ssp. californica
- O. californica ssp. eurekensis (Munz & J.C.Roos) W.M.Klein 1962 – Eureka Dunes evening primrose
- Oenothera deltoides Torr. & Frém. 1845 – birdcage evening primrose
- O. deltoides ssp. ambigua (Munz) W.M.Klein 1962
- O. deltoides ssp. cognata (Jeps.) W.M.Klein 1962
- O. deltoides ssp. deltoides
- O. deltoides ssp. howellii (Munz) W.M.Klein 1962 - Antioch Dunes evening primrose
- O. deltoides ssp. piperi (Munz) W.M.Klein 1962
- Oenothera engelmannii (Small) Munz 1931 – Engelmann's evening primrose (south-central U.S.) [5]
- Oenothera neomexicana (Small) Munz 1931 – New Mexico evening primrose (Arizona, New Mexico) [6]
- Oenothera nuttallii Sweet 1830 – Nuttall's evening primrose (central North America) [7]
- Oenothera pallida Lindl. 1828 – pale evening primrose, white buttercup (western North America) [8]
- O. pallida ssp. gypsophila (Eastw.) Munz & W.M.Klein 1965 – whitepole evening primrose [9]
- O. pallida ssp. pallida
- O. pallida ssp. runcinata (Engelm.) Munz & W.M.Klein 1965
- O. pallida ssp. trichocalyx (Nutt.) Munz & W.M.Klein 1965
- Oenothera wigginsii W.M.Klein 1962 – (Baja California in Mexico) [10]
Section Calylophus
Oenothera sect. Calylophus (Spach) W. L. Wagner & Hoch 2007 – in North American Great Plains and south to central Mexico.
subsect. Calylophus
- Oenothera berlandieri (Spach) Steud. 1843 – Mexican evening primrose [11]
- O. berlandieri ssp. berlandieri
- O. berlandieri ssp. pinifolia (Engelm.) W. L. Wagner & Hoch 2007
- Oenothera serrulata Nutt. 1818 – yellow sundrops [12]
subsect. Salpingia
- Oenothera hartwegii Benth. 1839 – Hartweg's sundrops [13]
- O. hartwegii ssp. fendleri (A.Gray) W.L.Wagner & Hoch 2007
- O. hartwegii ssp. filifolia (Eastw.) W.L.Wagner & Hoch 2007
- O. hartwegii ssp. hartwegii
- O. hartwegii ssp. maccartii (Shinners) W.L.Wagner & Hoch 2007
- O. hartwegii ssp. pubescens (A.Gray) W.L.Wagner & Hoch 2007
- Oenothera lavandulifolia Torr. & A.Gray 1840 – lavenderleaf sundrops [14]
- Oenothera toumeyi (A.Gray) Tidestr. 1935 – Toumey's sundrops [15]
- Oenothera tubicula A.Gray 1852 – Texas sundrops [16]
- O. tubicula ssp. strigulosa (Towner) W.L.Wagner & Hoch 2007
- O. tubicula ssp. tubicula
Section Contortae
Oenothera sect. Contortae W.L.Wagner 1987 – Sierra Nevadas of California, extending just into western Nevada. [17]
Section Eremia
Oenothera sect. Eremia W.L.Wagner 1986 – western North America, with a distribution in the Chihuahuan, Mojave, and Sonoran deserts.[18]
- Oenothera primiveris A.Gray 1853 – desert evening primrose
- O. primiveris ssp. bufonis (M.E. Jones) Munz 1965 – large yellow desert primrose [19]
- O. primiveris ssp. primiveris
Section Gaura
Oenothera sect. Gaura (L.) W.L.Wagner & Hoch 2007 – beeblossom (includes most of the taxa formerly placed in genus Gaura) [20][21]
subsect. Campogaura
- Oenothera boquillensis (P.H.Raven & D.P.Greg.) W.L.Wagner & Hoch 2007 – Rio Grande beeblossom (Texas & Mexico)
- Oenothera suffrutescens (Ser.) W.L.Wagner & Hoch 2007 – scarlet beeblossom (western North America)
subsect. Gaura
- Oenothera coloradensis (Rydb.) W.L.Wagner & Hoch 2007 (Nebraska, Wyoming, Colorado, New Mexico)
- O. coloradensis ssp. coloradensis – Colorado beeblossom or butterfly plant
- O. coloradensis ssp. neomexicana (Wooton) W.L.Wagner & Hoch 2007 – New Mexico beeblossom
- Oenothera demareei (P.H.Raven & D.P.Greg.) W.L.Wagner & Hoch 2007 – Demaree's beeblossom
- Oenothera filiformis (Small) W.L.Wagner & Hoch 2007 – biennial gaura [22]
- Oenothera hexandra (Ortega) W.L.Wagner & Hoch 2007
- O. hexandra ssp. gracilis (Wooton & Standl.) W.L.Wagner & Hoch 2007
- O. hexandra ssp. hexandra
- Oenothera lindheimeri (Engelm. & A.Gray) W.L.Wagner & Hoch 2007
- Oenothera patriciae W.L.Wagner & Hoch 2007 [3]
- Oenothera simulans (Small) W.L.Wagner & Hoch 2007 [3]
- Oenothera suffulta (Engelmann) W.L.Wagner & Hoch 2007 [3]
- O. suffulta ssp. suffulta
- O. suffulta ssp. nealleyi (J. M. Coulter) W.L.Wagner & Hoch 2007
- Oenothera triangulata (Buckley) W.L.Wagner & Hoch 2007 [3]
subsect. Gauridium
- Oenothera anomala Curtis 1797 – anomalous Oenothera (Mexico) [2][3]
subsect. Schizocarya
- Oenothera curtiflora W.L.Wagner & Hoch 2007 – lizard tail (North America) [23]
subsect. Stenosiphon
- Oenothera glaucifolia W.L.Wagner & Hoch 2007 – false gaura (southern Great Plains of central North America) [3]
subsect. Stipogaura
- Oenothera calcicola (P.H.Raven & D.P.Gregory) W.L.Wagner & Hoch 2007
- Oenothera cinerea (Wooton & Standl.) W.L.Wagner & Hoch 2007 – gaura-pilosa [24]
- O. cinerea ssp. cinerea
- O. cinerea ssp. parksii (Munz) W.L.Wagner & Hoch 2007
- Oenothera filipes (Spach) W.L.Wagner & Hoch 2007
- Oenothera mckelveyae (Munz) W.L.Wagner & Hoch 2007
- Oenothera sinuosa W.L.Wagner & Hoch 2007 – wavy-leaf gaura [25]
subsect. Xenogaura
- Oenothera xenogaura W.L.Wagner & Hoch 2007 – (southern North America) [2]
subsect. Xerogaura
- Oenothera arida W.L.Wagner & Hoch 2007 – (Texas, Mexico) [2]
Section Gauropsis
Oenothera sect. Gauropsis (Torrey & Frémont) W.L.Wagner 1985 – Wyoming, western Nebraska, eastern Colorado, New Mexico, Kansas and the Texas Panhandle in the U.S. High Plains.[26]
- Oenothera canescens Torr. & Frém. 1845 – spotted evening primrose [27]
Section Hartmannia
Oenothera sect. Hartmannia (Spach) W. L. Wagner & Hoch 2007 – Generally in Mexico, Arizona, and Texas. But O. speciosa extends into the U.S. Central Plains, and O. rosea extends to the Caribbean, and northern South America.[28]
- Oenothera deserticola (Loes.) Munz 1932 – (Mexico)[29]
- Oenothera platanorum P.H.Raven & D.R.Parn. 1970 – Fort Huachuca evening primrose [30]
- Oenothera rosea L’Hér. ex Aiton 1789 – pink evening primrose, Rose of Mexico
- Oenothera texensis P.H.Raven & D.R.Parn. 1970 – Texas evening primrose [31]
Section Kleinia
Oenothera sect. Kleinia Munz 1965 – distributed over the Chihuahuan, Sonoran, and southern portions of the Great Basin deserts to the Great Plains, from southern Utah to southeastern Montana and western North Dakota, and northern Mexico. [32]
- Oenothera albicaulis Pursh 1813 – prairie evening-primrose [33]
- Oenothera coronopifolia Torr. & A.Gray 1840 [34]
Section Kneiffia
Oenothera sect. Kneiffia (Spach) Straley 1978 – eastern North America, at elevations up to 1900 m. [35]
- Oenothera fruticosa L. 1753 – narrow-leaved or southern sundrops (eastern North America) [36]
- O. fruticosa ssp. fruticosa – (more southern distribution)
- O. fruticosa ssp. glauca (Michx.) Straley 1978 – (more northern distribution)
- Oenothera pilosella Raf. 1820 – prairie sundrops, meadow evening primrose [39][40]
- O. pilosella ssp. pilosella – (eastern North America)
- O. pilosella ssp. sessilis (Pennell) Straley 1978 – (AR, LA, TX)
- Oenothera riparia Nutt. 1818 – riverbank sundrops [41][42][3]
Section Lavauxia
Oenothera sect. Lavauxia (Spach) W. L. Wagner & Hoch 2007 – North and South America.
subsect. Australis
- Oenothera acaulis Cav. 1898 − (Chile) [44]
- Oenothera centaurifolia (Spach) Steud. 1841 − (Uraguay, Brazil, Argentina) [45][46]
subsect. Lavauxia
- Oenothera acutissima W.L.Wagner 1981 – Flaming Gorge evening primrose (Utah, Colorado) [47]
- Oenothera flava (A. Nelson) Garrett 1927 – yellow evening primrose (west & central North America) [48]
- O. flava ssp. flava
- O. flava ssp. taraxacoides (Woot. & Standl.) W.L.Wagner 1986
- Oenothera triloba Nutt. 1821 – stemless evening primrose (North America) [49]
Section Leucocoryne
Oenothera sect. Leucocoryne W.L.Wagner & Hoch 2007 – from southern Texas, through northern Mexico to the Trans-Volcanic Belt of central Mexico, southward to Guatemala, Nicaragua, and Costa Rica.[2]
- Oenothera dissecta A. Gray ex S. Wats. 1885 - (Chihuahuan Desert) [50]
- Oenothera kunthiana Munz 1932 - (southern Texas to Cost Rica) [51]
- Oenothera luciae-julianiae W.L.Wagner 2004 - (Mexico)
- Oenothera orizabae W.L.Wagner 2004 - (Mexico)
- Oenothera tetraptera Cav. 1796 - (Mexico, southern Texas) [52]
Section Megapterium
Oenothera sect. Megapterium (Spach) W.L.Wagner & Hoch 2007 – distributed in south-central North America.
- Oenothera macrocarpa Nutt. 1813 – Missouri or big-fruit evening primrose [55][56]
- O. macrocarpa ssp. fremontii (S.Watson) W.L.Wagner 1983 – Fremont's evening primrose (Kansas, Nebraska)
- O. macrocarpa ssp. incana (A.Gray) W.L.Wagner 1983 – big-fruit evening primrose (Kansas, Oklahoma, Texas)
- O. macrocarpa ssp. macrocarpa – big-fruit evening primrose (Arkansas, Illinois, Kansas, Missouri, Oklahoma, Colorado, Tennessee, Texas)
- O. macrocarpa ssp. mexicana W.L.Wagner 2007 – (Mexico)
- O. macrocarpa ssp. oklahomensis (J.B.S.Norton) W.L.Wagner 1983 – Oklahoma evening primrose (Kansas, Oklahoma, Texas)
Section Oenothera
Oenothera sect. Oenothera – distributed from Canada to Panama.[57]
subsect. Candela
- Oenothera clelandii W.Dietr. P.H. Raven & W.L.Wagner 1983 – Cleland's evening primrose [58]
- Oenothera curtissii Small 1913 – Curtiss' evening primrose (Alabama, Florida, Georgia, Mississippi, South Carolina)
- Oenothera heterophylla Spach 1836 – variable-leaf evening primrose [59]
- Oenothera rhombipetala Nutt. ex Torr. & A.Gray 1840
subsect. Emersonia
- Oenothera macrosceles A.Gray 1849 – (Chihuahuan Desert) [2]
- Oenothera maysillesii Munz 1960 – (Durango)
- Oenothera organensis Munz 1938 – (New Mexico)
- Oenothera stubbei W.Dietr., P.H.Raven & W.L.Wagner 1978 – (Nuevo León)
subsect. Munzia
series Allochroa
- Oenothera affinis Cambess. 1829 – (Bolivia, Brazil, Chile)
- Oenothera arequipensis Munz & I M.Johnst. 1925 – (Chile)
- Oenothera bahia-blancae W.Dietr. 1978 – (Argentina)
- Oenothera catharinensis Cambess. 1829 – (Brazil)
- Oenothera coquimbensis Gay 1847 – (Chile)
- Oenothera featherstonei Munz & I.M.Johnst. 1925 – (Peru)
- Oenothera indecora Cambess. 1830
- O. indecora ssp. boliviensis W.Dietr. 1978
- O. indecora ssp. bonariensis W.Dietr. 1978
- O. indecora ssp. indecora
- Oenothera mendocinensis Gillies ex Hook. & Arn. 1833 – (Argentina)
- Oenothera mollissima L. 1753 – (Brazil)
- Oenothera montevidensis W.Dietr. 1978 – (Uruguay)
- Oenothera odorata Jacq. 1795 – (Argentina, Chile)
- Oenothera parodiana Munz 1933 [60]
- O. parodiana ssp. brasiliensis W.Dietr. 1978 – (Argentina, Brazil, Uruguay)
- O. parodiana ssp. parodiana – (Argentina)
- O. parodiana ssp. strigulosa W.Dietr. 1978 – (Argentina)
- Oenothera picensis Phil. 1891 [61]
- O. picensis ssp. bonariensis W.Dietr. 1978 – (Argentina)
- O. picensis ssp. cordobensis W.Dietr. 1978 – (Argentina)
- O. picensis ssp. picensis – (Chile)
- Oenothera ravenii W.Dietr. 1978 – (Argentina, Brazil, Chile, Uruguay) [62]
- O. ravenii ssp. argentinae W.Dietr. 1978 – (Argentina, Brazil)
- O. ravenii ssp. chilensis W.Dietr. 1978 – (Chile)
- O. ravenii ssp. ravenii – (Brazil)
- Oenothera stricta Ledeb. ex Link 1821 [63]
- O. stricta ssp. altissima W.Dietr. 1978 – (Argentina)
- O. stricta ssp. argentinae W.Dietr. 1978 – (Argentina)
- O. stricta ssp. stricta – (Chile)
series Clelandia
- Oenothera elongata Rusby 1893 – (Bolivia, Peru)
- Oenothera punae Kuntze 1898 – (Bolivia)
- Oenothera siambonensis W.Dietr. 1978 – (Argentina)
- Oenothera villaricae W.Dietr. 1978 – (Argentina, Chile)
series Renneria
- Oenothera longituba W.Dietr. 1978 – (Argentina)
- Oenothera nana Griseb. 1874 – (Argentina, Bolivia, Chile, Peru)
- Oenothera pedunculifolia W.Dietr. 1978 – (Argentina)
- Oenothera peruana W.Dietr. 1978 – (Chile, Peru)
- Oenothera sandiana Hassk. 1856 – (Chile, Ecuador)
- Oenothera santarii W.Dietr. 1978 – (Argentina)
- Oenothera scabra K.Krause 1905 [64]
- O. scabra ssp. scabra – (Bolivia, Peru)
- O. scabra ssp. ucrosensis W.Dietr. 1978 – (Peru)
- Oenothera tafiensis W.Dietr. 1978 [65]
- O. tafiensis ssp. parviflora W.Dietr. 1978 – (Argentina)
- O. tafiensis ssp. tafiensis – (Argentina)
- Oenothera tarijensis W.Dietr. 1978 – (Bolivia)
- Oenothera versicolor Lehm. 1855 – (Bolivia, Ecuador, Peru)
subsect. Nutantigemma
- Oenothera breedlovei W.Dietr. & W.L.Wagner 1987 - (Mexico)
- Oenothera pennellii Munz 1939 - (Mexico)
- Oenothera pubescens Willd. ex Spreng. 1825 – South American evening primrose (southwestern U.S to western South America)
- Oenothera tamrae W.Dietr. & W.L.Wagner 1987 - (Mexico)
subsect. Oenothera
- Oenothera argillicola Mack. 1904 – shale-barren evening primrose (MD, PA, VA, WV) [66]
- Oenothera elata Kunth 1823 – Hooker's evening primrose (western North America)
- O. elata ssp. elata – (Mexico, Central America)
- O. elata ssp. hirsutissima (A.Gray ex S.Watson) W.Dietr. 1983 – (western U.S.)
- O. elata ssp. hookeri (Torr. & A.Gray) W.Dietr. & W.L.Wagner 1987
- O. elata ssp. texensis W.Dietr. & W.L.Wagner 1987 – (Texas)
- Oenothera grandiflora L’Hér. 1789 – large-flower evening primrose (eastern North America)
- Oenothera jamesii Torr. & A.Gray 1840 – trumpet evening primrose (Mexico, KS, OK, TX) [68]
- Oenothera nutans G.F.Atk. & Bartlett 1913 – nodding evening primrose (eastern North America) [69]
- Oenothera oakesiana (A.Gray) J.W.Robbins ex S.Watson 1890 – Oakes' evening primrose (eastern North America) [70]
- Oenothera parviflora L. – northern evening primrose (North America)
- Oenothera villosa Thunb. 1794 – hairy evening primrose (North America)
- O. villosa ssp. strigosa (Rydb.) W. Dietr. & P.H. Raven 1977
- O. villosa ssp. villosa
- Oenothera wolfii (Munz) P.H.Raven W.Dietr. & Stubbe 1980 – Wolf's evening primrose (California)
subsect. Raimannia
- Oenothera drummondii Hook. 1834 – beach evening primrose [71]
- O. drummondii ssp. drummondii – (Atlantic coast, North Carolina to Mexico)
- O. drummondii ssp. thalassaphila (Brandegee) W.Dietr. & W.L.Wagner 1987 – (southern Baja California coast)
- Oenothera falfurriae W.Dietr. & W.L.Wagner 1987 – royal evening primrose (southeastern Texas) [72]
- Oenothera grandis (Britton) Smyth 1899 – showy evening primrose (U.S. & Mexico)
- Oenothera humifusa Nutt. 1818 – sea-beach evening primrose (southeast U.S.)
- Oenothera laciniata Hill 1767 – cutleaf evening primrose (North & South America)
- O. laciniata ssp. laciniata
- O. laciniata ssp. pubescens (Willd. ex Spreng.) Munz 1965 – (Ecuador) [73]
- Oenothera mexicana Spach 1835 – Mexican evening primrose (southeastern Texas) [74]
Section Pachylophus
Oenothera sect. Pachylophus (Spach) W.L.Wagner 2005 – western North America.
- Oenothera cavernae Munz 1941 – cave-dwelling evening primrose (AZ, NV, UT)
- Oenothera cespitosa Nutt.1813
- O. cespitosa ssp. cespitosa – tufted evening primrose (western North America)
- O. cespitosa ssp. crinita (Rydb.) Munz 1965 – tufted evening primrose (southwest North America)
- O. cespitosa ssp. macroglottis (Rydb.) W.L.Wagner, Stockh. & W.M.Klein 1983 – tufted evening primrose (CO, NM, UT, WY)
- O. cespitosa ssp. marginata (Nutt. ex Hook. & Arn.) Munz 1965 – tufted evening primrose
- O. cespitosa ssp. navajoensis W.L.Wagner, Stockh, & W.M.Klein 1985 – Navajo evening primrose (AZ, NM, NV, UT)
- Oenothera harringtonii W.L.Wagner, Stockh. & W.M.Klein 1983 – Colorado Springs evening primrose (Colorado)
- Oenothera psammophila (A.Nels. & J.F.Macbr.) W.L.Wagner, Stockh. & W.M.Klein 1985 – St. Anthony Dunes evening primrose (Idaho)
Section Paradoxus
Oenothera sect. Paradoxus W. L. Wagner 1984 – distribution within the Chihuahuan Desert. [76]
- Oenothera havardii S.Watson 1885 − Havard's evening primrose (Arizona, Texas)
Section Peniophyllum
Oenothera sect. Peniophyllum (Pennell) Munz 1937 – The single species is found in the southeastern U.S.
- Oenothera linifolia Nutt. 1821 – thread-leaf evening primrose [77]
Section Ravenia
Oenothera sect. Ravenia W.L.Wagner 1986 – within Mexico. [78]
- Oenothera muelleri Munz 1937 – (northeast Mexico)
- Oenothera riskindii W.L.Wagner 2005 – (Coahuila)
- Oenothera tubifera Ser. 1828 [79]
- O. tubifera ssp. macrocarpa W.L.Wagner 2005 – (Durango)
- O. tubifera ssp. tubifera
Section Xanthocoryne
Oenothera sect. Xanthocoryne W.L.Wagner & Hoch 2007 – from central Mexico to northern South America. [80]
- Oenothera epilobiifolia Kunth 1823 – (Colombia, Mexico)
- O. epilobiifolia ssp. cuprea (Schlecht.) P.H.Raven & D.R.Parn. 1970
- O. epilobiifolia ssp. epilobiifolia – (Venezuela)
- Oenothera multicaulis Ruíz & Pav. 1802 – (South America)
References
- ^ OenotheraUSDA Germplasm Resources Information Network (GRIN) 2011-12-07
- ^ a b c d e f g h OenotheraWagner, W. L. and P. C. Hoch. 2005-. Onagraceae, The Evening Primrose Family. 2011-12-07
- ^ a b c d e f g h Onagraceae Wagner,W.L et. al. Revised Classification of the Onagraceae (2007)
- ^ O. arizonica USDA Natural Resources Conservation Service PLANTS Profile. 2011-12-07
- ^ O. engelmannii USDA Natural Resources Conservation Service PLANTS Profile. 2011-12-07
- ^ O. neomexicana USDA Natural Resources Conservation Service PLANTS Profile. 2011-12-07
- ^ O. nuttallii USDA Natural Resources Conservation Service PLANTS Profile. 2011-12-07
- ^ O. pallida USDA Natural Resources Conservation Service PLANTS Profile. 2011-12-07
- ^ O. pallida ssp. gypsophila USDA Natural Resources Conservation Service PLANTS Profile. 2011-12-09
- ^ O. wigginsii North Carolina State University Herbarium 2011-12-07
- ^ O. berlandieri University of Arizona Pima County Cooperative Extension. 2011-12-07
- ^ O. serrulata USDA Natural Resources Conservation Service PLANTS Profile. 2011-12-07
- ^ O. hartwegii USDA Natural Resources Conservation Service PLANTS Profile. 2011-12-07
- ^ O. lavandulifolia USDA Natural Resources Conservation Service PLANTS Profile. 2011-12-07
- ^ O. toumeyi USDA Natural Resources Conservation Service PLANTS Profile. 2011-12-07
- ^ O. tubicula USDA Natural Resources Conservation Service PLANTS Profile. 2011-12-07
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- ^ O. sect. Eremia Wagner, W. L. and P. C. Hoch. 2005-. Onagraceae, The Evening Primrose Family. 2011-12-06
- ^ O. primiveris ssp. bufonis Calflora: Information on California plants for education, research and conservation 2011-12-09
- ^ Common Names The Integrated Taxonomic Information System (ITIS) 2011-12-13
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- ^ O. curtiflora USDA Germplasm Resources Information Network (GRIN) 2011-12-08
- ^ O. cinerea USDA Germplasm Resources Information Network (GRIN) 2022-12-09
- ^ O. sinuosa USDA Germplasm Resources Information Network (GRIN) 2022-12-09
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- ^ O. coronopifolia Tropicos.org. Missouri Botanical Garden 2011-12-09
- ^ O. sect. Kneiffia Wagner, W. L. and P. C. Hoch. 2005-. Onagraceae, The Evening Primrose Family 2011-12-09
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- ^ O. perennis USDA Natural Resources Conservation Service PLANTS Profile. 2011-12-07
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- ^ O. pilosella Prairie Wildflowers of Illinois 2011-12-08
- ^ O. pilosella USDA Natural Resources Conservation Service PLANTS Profile. 2011-12-09
- ^ Richard Dwight Porcher & Douglas Alan Rayner: A guide to the wildflowers of South Carolina, p.292 (2001)
- ^ O. riparia Tropicos.org. Missouri Botanical Garden. 2011-12-11
- ^ O. spachiana Lady Bird Johnson Wildflower Center, Native Plant Database 2011-12-11
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- ^ O. centauriifolia Wagner, W. L. and P. C. Hoch. 2005-. Onagraceae, The Evening Primrose Family 2011-12-07
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- ^ O. kunthiana Wagner, W. L. and P. C. Hoch. 2005-. Onagraceae, The Evening Primrose Family 2011-12-09
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- ^ O. brachycarpa USDA Natural Resources Conservation Service PLANTS Profile. 2010-12-09
- ^ O. howardii USDA Natural Resources Conservation Service PLANTS Profile. 2011-12-09
- ^ O. macrocarpa Tropicos.org. Missouri Botanical Garden. 2011-12-09
- ^ O. macrocarpa USDA Natural Resources Conservation Service PLANTS Profile. 2011-12-09
- ^ O. sect. Oenothera Wagner, W. L. and P. C. Hoch. 2005-. Onagraceae, The Evening Primrose Family 2011-12-08
- ^ O. clelandii Prairie Wildflowers of Illinois 2011-12-08
- ^ O. heterophylla USDA Natural Resources Conservation Service PLANTS Profile. 2011-12-09
- ^ O. parodiana Tropicos.org. Missouri Botanical Garden. 2011-12-10
- ^ O. picensis Tropicos.org. Missouri Botanical Garden. 2011-12-10
- ^ O. ravenii Tropicos.org. Missouri Botanical Garden. 2011-12-10
- ^ O. stricta Tropicos.org. Missouri Botanical Garden. 2011-12-10
- ^ O. scabra Tropicos.org. Missouri Botanical Garden. 2011-12-10
- ^ O. tafiensis Tropicos.org. Missouri Botanical Garden. 2011-12-10
- ^ O. argillicola USDA Natural Resources Conservation Service PLANTS Profile. 2011-12-10
- ^ O. glazioviana USDA Natural Resources Conservation Service PLANTS Profile. 2011-12-10
- ^ O. jamesii USDA Natural Resources Conservation Service PLANTS Profile. 2011-12-10
- ^ O. nutans USDA Natural Resources Conservation Service PLANTS Profile. 2011-12-10
- ^ O. oakesiana USDA Natural Resources Conservation Service PLANTS Profile. 2011-12-10
- ^ O. drummondii Wagner, W.L. and P.C. Hoch. 2005-. Onagraceae, The Evening Primrose Family. 2011-12-10
- ^ O. falfurriae Wagner, W.L. and P.C. Hoch. 2005-. Onagraceae, The Evening Primrose Family. 2011-12-10
- ^ O. laciniata ssp. pubescens Tropicos.org. Missouri Botanical Garden. 2011-12-10
- ^ O. mexicana Wagner,W.L. and P.C.Hoch. 2005-. Onagraceae, The Evening Primrose Family. 2011-12-10
- ^ O. brandegeei Wagner,W.L. and P.C.Hoch. 2005-. Onagraceae, The Evening Primrose Family 2011-12-10
- ^ O. sect. Paradoxus Wagner,W.L. and P.C.Hoch. 2005-. Onagraceae, The Evening Primrose Family. 2011-12-10
- ^ O linifolia USDA Natural Resources Conservation Service PLANTS Profile. 2011-12-11
- ^ O. sect. Ravenia Wagner,W.L. and P.C.Hoch. 2005-. Onagraceae, The Evening Primrose Family. 2011-12-10
- ^ O. tubifera Tropicos.org. Missouri Botanical Garden. 2011-12-10
- ^ O. sect. Xanthocoryne Wagner,W.L. and P.C.Hoch. 2005-. Onagraceae, The Evening Primrose Family. 2011-12-10