Onagraceae
Oenothera macrocarpa Nutt.
Oenothera macrocarpa Nutt.
Oenothera macrocarpa is a herbaceous perennial grown in gardens, with large yellow flowers that last one day.
Oenothera pallida Lindl.
Oenothera pallida Lindl.
Oenothera pallida, the pale evening-primrose, is a Onagraceae flowering plant native to western North America with flowers that fade from white to pink.
Oenothera parviflora L.
Oenothera parviflora L.
Oenothera parviflora (northern evening primrose) is a flowering Onagraceae species native to northeastern North America and invasive across several other regions.
Oenothera perennis L.
Oenothera perennis L.
Oenothera perennis is a perennial herb in Onagraceae, native to eastern North America, with yellow day-opening flowers.
Oenothera primiveris A.Gray
Oenothera primiveris A.Gray
Oenothera primiveris is a hairy annual desert herb native to the southwestern US and northern Mexico, with yellow flowers that fade orange or red.
Oenothera rosea Aiton
Oenothera rosea Aiton
Oenothera rosea Aiton is a fast-spreading flowering plant in Onagraceae native to the Americas with pink to red small flowers.
Oenothera serrulata Nutt.
Oenothera serrulata Nutt.
Oenothera serrulata Nutt., commonly yellow sundrops, is a heat- and drought-tolerant flowering subshrub native to central North America.
Oenothera simulans (Small) W.L.Wagner & Hoch
Oenothera simulans (Small) W.L.Wagner & Hoch
Oenothera simulans (southern beeblossom) is an annual Onagraceae flowering plant native to the Bahamas and southeastern US, that prefers sandy soils.
Oenothera speciosa Nutt.
Oenothera speciosa Nutt.
Oenothera speciosa is a herbaceous perennial wildflower commonly grown as an ornamental groundcover.
Oenothera stricta Link
Oenothera stricta Link
Oenothera stricta is a Onagraceae flowering plant, native to South America, that helps attract pollinators.
Oenothera suffrutescens (Ser.) W.L.Wagner & Hoch
Oenothera suffrutescens (Ser.) W.L.Wagner & Hoch
Oenothera suffrutescens, or scarlet beeblossom, is a North American perennial wildflower sometimes grown in wildflower gardens.
Oenothera suffulta (Engelm.) W.L.Wagner & Hoch
Oenothera suffulta (Engelm.) W.L.Wagner & Hoch
Oenothera suffulta (roadside gaura) is an annual herb of open sandy areas that flowers from April to June.
Oenothera tetraptera Cav.
Oenothera tetraptera Cav.
Fourwing evening primrose, Oenothera tetraptera, is a white-flowering Onagraceae herb native to the Americas.
Oenothera triloba Nutt.
Oenothera triloba Nutt.
Oenothera triloba is a North American native primrose with documented edible and medicinal uses by the Zuni people.
Oenothera villosa Thunb.
Oenothera villosa Thunb.
Oenothera villosa Thunb., the hairy evening primrose, is a hairy biennial herb with potential medicinal uses.
Taraxia ovata (Nutt.) Small
Taraxia ovata (Nutt.) Small
Taraxia ovata is a fleshy taprooted perennial native to California coastal ranges, growing in clay soil with yellow occasional white flowers.
Taraxia subacaulis (Pursh) Rydb.
Taraxia subacaulis (Pursh) Rydb.
Taraxia subacaulis, or longleaf suncup, is a stemless perennial with a single leaf rosette that grows from a thick taproot.
Taraxia tanacetifolia (Torr. & A.Gray) Piper
Taraxia tanacetifolia (Torr. & A.Gray) Piper
Tansyleaf evening primrose (Taraxia tanacetifolia) is a stemless perennial evening primrose native to the western United States.
Clarkia biloba (Durand) A.Nelson & J.F.Macbr.
Clarkia biloba (Durand) A.Nelson & J.F.Macbr.
Clarkia biloba is an annual herb with two-lobed, pink to magenta petals and protruding stigmas native to... wait no, source doesn't say origin, correct: Clarkia biloba is an annual herb characterized by two-lobed, pink to magenta petals and a stigma that extends past its eight stamens.
Clarkia breweri (A.Gray) Greene
Clarkia breweri (A.Gray) Greene
Clarkia breweri, also called fairy fans or Brewer's clarkia, is a rare wildflower endemic to central California.
Clarkia affinis F.H.Lewis & M.E.Lewis
Clarkia affinis F.H.Lewis & M.E.Lewis
Chaparral clarkia (Clarkia affinis) is a California-endemic Onagraceae wildflower that grows in Coast Ranges chaparral and woodlands.
Clarkia modesta Jeps.
Clarkia modesta Jeps.
Clarkia modesta, or Waltham Creek clarkia, is an endemic California annual pink-flowering herb in the evening primrose family.
Clarkia similis F.H.Lewis & W.R.Ernst
Clarkia similis F.H.Lewis & W.R.Ernst
Ramona clarkia (Clarkia similis) is an annual pink-flowered herb endemic to coastal hills and mountains of southwestern California.
Clarkia arcuata (Kellogg) A.Nelson & J.F.Macbr.
Clarkia arcuata (Kellogg) A.Nelson & J.F.Macbr.
Clarkia arcuata is an annual herb with pink-lavender flowers native to western North America.
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