Oenothera flava

Oenothera flava
Habit
Conservation status
Secure  (NatureServe) [1]
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Rosids
Order:	Myrtales
Family:	Onagraceae
Genus:	Oenothera
Species:	O. flava
Binomial name
Oenothera flava (A.Nelson) Garrett
Synonyms [2]
List Lavauxia flavaA.Nelson Lavauxia hamataWooton & Standl. Lavauxia palustrisRose Lavauxia taraxacoidesWooton & Standl. Oenothera flava subsp. taraxacoides(Wooton & Standl.) W.L.Wagner Oenothera hamata(Wooton & Standl.) Tidestr. Oenothera murdockiiS.L.Welsh & N.D.Atwood Oenothera taraxacifolia var. ecristata(M.E.Jones) H.Lév. & Guffroy Oenothera taraxacoides(Wooton & Standl.) Munz Oenothera triloba var. ecristataM.E.Jones

Oenothera flava, the yellow evening primrose (a name it shares with Oenothera serrulata ), is a species of flowering plant in the family Onagraceae. ^[3] It is native to western Canada (except British Columbia), the western and central United States, and Mexico (except southeastern Mexico), and it has been introduced to the former Czechoslovakia. ^[2] An almost stemless perennial reaching 20 cm (8 in), it is typically found in damp situations such as prairie swales, open woodlands, and alongside streams. ^[3]

References

1. NatureServe (5 September 2025). "Oenothera flava". NatureServe Explorer. Arlington, Virginia. Retrieved 13 September 2025.
2. "Oenothera flava (A.Nelson) Garrett". Plants of the World Online . Royal Botanic Gardens, Kew . Retrieved 25 November 2023.
3. "Oenothera flava (A. Nelson) Garrett". Plant Database. Lady Bird Johnson Wildflower Center. 21 February 2023. Retrieved 25 November 2023. Yellow Evening-primrose, Long-tube Evening-primrose, Shortfin Evening-primrose, Yellow Evening Primrose