Angora (Spach) W.L.Wagner & Hoch – western North America in dry, sandy soils in deserts, grasslands, and forest openings, up to 2000 m.
Calylophus (Spach) W. L. Wagner & Hoch – in North American Great Plains and south to central Mexico.
Eremia W.L.Wagner – western North America, with a distribution in the Chihuahuan, Mojave, and Sonoran deserts.
Gauropsis (Torrey & Frémont) W.L.Wagner – Wyoming, western Nebraska, eastern Colorado, New Mexico, Kansas and the Texas Panhandle in the U.S. High Plains.
Kleinia Munz – 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.
Kneiffia (Spach) Straley – eastern North America, at elevations up to 1900 m.[35] Oenothera sect.
Peniophyllum (Pennell) Munz – The single species is found in the southeastern U.S. Oenothera sect.