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List of Oenothera species

Subdivisions of the genus Oenothera in the Onagraceae (evening primrose) family:

Section Anogra

Oenothera sect. Angora – western North America in dry, sandy soils in deserts, grasslands, and forest openings, up to 2000 m. elevation.

  • Oenothera arizonica – California evening primrose (Arizona & Mexico)
  • Oenothera avita – California evening primrose
  • O. avita ssp. avita
  • O. avita ssp. californica
  • O. avita ssp. eurekensis – Eureka Dunes evening primrose
  • Oenothera deltoides – birdcage evening primrose
  • O. deltoides ssp. ambigua
  • O. deltoides ssp. cognata
  • O. deltoides ssp. deltoides
  • O. deltoides ssp. howellii ( - Antioch Dunes evening primrose
  • O. deltoides ssp. piperi
  • Oenothera engelmannii – Engelmann's evening primrose (south-central U.S.)
  • Oenothera neomexicana – New Mexico evening primrose (Arizona, New Mexico)
  • Oenothera nuttallii – Nuttall's evening primrose (central North America)
  • Oenothera pallida – pale evening primrose, white buttercup (western North America)
  • O. pallida ssp. gypsophila – whitepole evening primrose
  • O. pallida ssp. pallida
  • O. pallida ssp. runcinata
  • O. pallida ssp. trichocalyx
  • Oenothera wigginsii – (Baja California in Mexico)

Section Calylophus

Oenothera sect. Calylophus – in North American Great Plains and south to central Mexico.

subsect. Calylophus

subsect. Salpingia

  • Oenothera hartwegii – Hartweg's sundrops
  • O. hartwegii ssp. fendleri
  • O. hartwegii ssp. filifolia
  • O. hartwegii ssp. hartwegii
  • O. hartwegii ssp. maccartii
  • O. hartwegii ssp. pubescens
  • Oenothera lavandulifolia – lavenderleaf sundrops
  • Oenothera toumeyi – Toumey's sundrops
  • Oenothera tubicula – Texas sundrops
  • O. tubicula ssp. strigulosa
  • O. tubicula ssp. tubicula

Section Contortae

Oenothera sect. Contortae – Sierra Nevadas of California, extending just into western Nevada.

Section Eremia

Oenothera sect. Eremia – western North America, with a distribution in the Chihuahuan, Mojave, and Sonoran deserts.

  • Oenothera primiveris – desert evening primrose
  • O. primiveris ssp. bufonis – large yellow desert primrose
  • O. primiveris ssp. primiveris

Section Gaura

Oenothera sect. Gaura – beeblossom (includes most of the taxa formerly placed in genus Gaura)

subsect. Campogaura

subsect. Gaura

subsect. Gauridium

subsect. Schizocarya

subsect. Stenosiphon

subsect. Stipogaura

subsect. Xenogaura

subsect. Xerogaura

Section Gauropsis

Oenothera sect. Gauropsis – Wyoming, western Nebraska, eastern Colorado, New Mexico, Kansas and the Texas Panhandle in the U.S. High Plains.

Section Hartmannia

Oenothera sect. Hartmannia – 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.

Section Kleinia

Oenothera sect. Kleinia – 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.

Section Kneiffia

Oenothera sect. Kneiffia – eastern North America, at elevations up to 1900 m.

  • Oenothera fruticosa – narrow-leaved or southern sundrops (eastern North America)
  • O. fruticosa ssp. fruticosa – (more southern distribution)
  • O. fruticosa ssp. glauca – (more northern distribution)
  • Oenothera perennis – little evening primrose, perennial sundrops (North America)
  • Oenothera pilosella – prairie sundrops, meadow evening primrose
  • O. pilosella ssp. pilosella – (eastern North America)
  • O. pilosella ssp. sessilis – ()
  • Oenothera riparia – riverbank sundrops
  • Oenothera spachiana – Spach's evening-primrose ()

Section Lavauxia

Oenothera sect. Lavauxia – North and South America.

subsect. Australis

subsect. Lavauxia

  • Oenothera acutissima – Flaming Gorge evening primrose (Utah, Colorado)
  • Oenothera flava – yellow evening primrose (west & central North America)
  • O. flava ssp. flava
  • O. flava ssp. taraxacoides
  • Oenothera triloba – stemless evening primrose (North America)

Section Leucocoryne

Oenothera sect. Leucocoryne – from southern Texas, through northern Mexico to the Trans-Volcanic Belt of central Mexico, southward to Guatemala, Nicaragua, and Costa Rica.

Section Megapterium

Oenothera sect. Megapterium – distributed in south-central North America.

  • Oenothera brachycarpa – short-fruit evening primrose ()
  • Oenothera howardii – Howard's evening primrose ()
  • Oenothera macrocarpa – Missouri or big-fruit evening primrose
  • O. macrocarpa ssp. fremontii – Fremont's evening primrose ()
  • O. macrocarpa ssp. incana – big-fruit evening primrose ()
  • O. macrocarpa ssp. macrocarpa – big-fruit evening primrose ()
  • O. macrocarpa ssp. mexicana – (Mexico)
  • O. macrocarpa ssp. oklahomensis – Oklahoma evening primrose ()

Section Oenothera

Oenothera sect. Oenothera – distributed from Canada to Panama.

subsect. Candela

subsect. Emersonia

subsect. Munzia

series Allochroa

series Clelandia

series Renneria

subsect. Nutantigemma

subsect. Oenothera

  • Oenothera argillicola – shale-barren evening primrose ()
  • Oenothera biennis – common evening primrose (North America)
  • Oenothera elata – Hooker's evening primrose (western North America)
  • O. elata ssp. elata – (Mexico, Central America)
  • O. elata ssp. hirsutissima – (western U.S.)
  • O. elata ssp. hookeri
  • O. elata ssp. texensis – (Texas)
  • Oenothera glazioviana – red-sepal evening primrose (North America)
  • Oenothera grandiflora – large-flower evening primrose (eastern North America)
  • Oenothera jamesii – trumpet evening primrose (Mexico, )
  • Oenothera longissima – long-stem evening primrose (southwestern North America)
  • Oenothera nutans – nodding evening primrose (eastern North America)
  • Oenothera oakesiana – Oakes' evening primrose (eastern North America)
  • Oenothera parviflora – northern evening primrose (North America)
  • Oenothera villosa – hairy evening primrose (North America)
  • O. villosa ssp. strigosa
  • O. villosa ssp. villosa
  • Oenothera wolfii – Wolf's evening primrose (California)

subsect. Raimannia

  • Oenothera drummondii – beach evening primrose
  • O. drummondii ssp. drummondii – (Atlantic coast, North Carolina to Mexico)
  • O. drummondii ssp. thalassaphila – (southern Baja California coast)
  • Oenothera falfurriae – royal evening primrose (southeastern Texas)
  • Oenothera grandis – showy evening primrose (U.S. & Mexico)
  • Oenothera humifusa – sea-beach evening primrose (southeast U.S.)
  • Oenothera laciniata – cutleaf evening primrose (North & South America)
  • O. laciniata ssp. laciniata
  • O. laciniata ssp. pubescens – (Ecuador)
  • Oenothera mexicana – Mexican evening primrose (southeastern Texas)
  • Oenothera resicum <small>E.Benavides, JR.Kuethe, A.Ortiz-Alcaraz, JLL DE LA LUZ –</small>(Mexico)

Section Pachylophus

Oenothera sect. Pachylophus – western North America.

  • Oenothera brandegeei – (near Bahia de los Angeles)
  • Oenothera cavernae – cave-dwelling evening primrose ()
  • Oenothera cespitosa
  • O. cespitosa ssp. cespitosa – tufted evening primrose (western North America)
  • O. cespitosa ssp. crinita – tufted evening primrose (southwest North America)
  • O. cespitosa ssp. macroglottis – tufted evening primrose ()
  • O. cespitosa ssp. marginata – tufted evening primrose
  • O. cespitosa ssp. navajoensis – Navajo evening primrose ()
  • Oenothera harringtonii – Colorado Springs evening primrose (Colorado)
  • Oenothera psammophila – St. Anthony Dunes evening primrose (Idaho)

Section Paradoxus

Oenothera sect. Paradoxus – distribution within the Chihuahuan Desert.

Section Peniophyllum

Oenothera sect. Peniophyllum – The single species is found in the southeastern U.S.

Section Ravenia

Oenothera sect. Ravenia – within Mexico.

Section Xanthocoryne

Oenothera sect. Xanthocoryne – from central Mexico to northern South America.

References