evening primrose family (Onagraceae)

Oenothera

common evening primrose (Oenothera pycnocarpa Atkinson & Bartlett)

Oakes' evening primrose (Oenothera oakesiana (A. Gray) S. Watson)

Hooker's evening primrose (Oenothera elata ssp. hirsutissima (A. Gray ex S. Wats.) W. Dietrich)

desert evening primrose (Oenothera primiveris ssp. bufonis (M. E. Jones) Munz)

pale evening primrose (Oenothera pallida ssp. runcinata (Engelm.) Munz & W. Klein)

bigfruit evening primrose (Oenothera macrocarpa ssp. macrocarpa)

Oenothera canovirens Steele

meadow evening primrose (Oenothera pilosella ssp. sessilis (Pennell) G. B. Straley)

hairy evening primrose (Oenothera villosa ssp. strigosa (Rydb.) Dietrich & Raven)

northern evening primrose (Oenothera parviflora L.)

yellow evening primrose (Oenothera flava ssp. taraxacoides (Woot. & Standl.) W. L. Wagner)

Hooker's evening primrose (Oenothera elata ssp. hookeri (Torrey & A. Gray) W. Dietrich & W. L. Wagner)

Hartweg's sundrops (Oenothera hartwegii ssp. hartwegii)

tufted evening primrose (Oenothera cespitosa ssp. marginata (Nutt. ex Hook. & Arn.) Munz)

Oenothera rosea Aiton

Oenothera siambonensis W. Dietrich

Oenothera mexicana Spach

birdcage evening primrose (Oenothera deltoides ssp. ambigua (S. Wats.) W. Klein)

Oenothera grandiflora L'Her

small evening primrose (Oenothera indecora Camb.)

Fremont's evening primrose (Oenothera macrocarpa ssp. fremontii (S. Wats.) W. L. Wagner)

narrowleaf evening primrose (Oenothera fruticosa ssp. fruticosa)

pale evening primrose (Oenothera pallida ssp. trichocalyx (Nutt. ex Torr. & Gray) Munz & W. Klein)

pale evening primrose (Oenothera pallida ssp. pallida)

tufted evening primrose (Oenothera cespitosa ssp. macroglottis (Rydb.) W. L. Wagner, R. Stockhouse & W. M. Klein)

Oenothera glazioviana M. Micheli

showy evening primrose (Oenothera grandis (Britt.) Rydb.)

Oenothera longiflora ssp. longiflora

Oklahoma evening primrose (Oenothera macrocarpa ssp. oklahomensis (Nort.) W. L. Wagner)

Oenothera elongata Rusby

Oenothera hexandra (Sesse & Moc. ex Ortega) W. L. Wagner & Hoch

yellow evening primrose (Oenothera flava ssp. flava)

Oenothera avita ssp. avita

South American evening primrose (Oenothera pubescens Willdenow ex Spreng.)

birdcage evening primrose (Oenothera deltoides ssp. cognata (Jepson) W. Klein)

bigfruit evening primrose (Oenothera macrocarpa ssp. incana (A. Gray) W. L. Wagner)

Eureka Dunes evening primrose (Oenothera avita ssp. eurekensis (Munz & Roos) W. M. Klein)

meadow evening primrose (Oenothera pilosella ssp. pilosella)

Oenothera versicolor Lehm.

harlequinbush (Oenothera hexandra ssp. gracilis (Wooton & Standl.) W. L. Wagner & Hoch)

Oenothera parodiana Munz

Oenothera stricta ssp. stricta

Oenothera grisea W. Dietrich

longflower evening primrose (Oenothera affinis Camb.)

fourwing evening primrose (Oenothera tetraptera Cav.)

Oenothera wolfii (Munz) P. H. Raven, W. Dietrich & W. Stubbe

Chilean evening primrose (Oenothera stricta Link)

Oenothera nocturna Jacq.