Oenothera glazioviana

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Oenothera glazioviana
Oenothera glazioviana 03 ies.jpg
Scientific classification edit
Kingdom: Plantae
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Myrtales
Family: Onagraceae
Genus: Oenothera
O. glazioviana
Binomial name
Oenothera glazioviana

Oenothera erythrosepala

Oenothera glazioviana is a species of flowering plant in the evening primrose family known by the common names large-flowered evening-primrose[1] and redsepal evening primrose.[2]

The plant can be found in scattered locations worldwide, mostly as an introduced species, and its exact native origins are obscure. It may be a European hybrid of two North American species.

It has long been cultivated as an ornamental plant. In some locations it has become an invasive species.


Oenothera glazioviana is generally a biennial herb producing an erect stem approaching 1.5 metres (4.9 ft) in maximum height. It is roughly hairy in texture, the hairs with reddish blistering or glandular bases. The crinkly leaves are up to 15 centimeters long.

The inflorescence is a showy spike of many large flowers. When in bud the long red sepals are visible. When in bloom each flower has four bright yellow petals up to 5 centimeters long which fade orange to red with age. The fruit is a lance-shaped capsule 2 or 3 centimeters long.


  1. ^ "BSBI List 2007". Botanical Society of Britain and Ireland. Archived from the original (xls) on 2015-01-25. Retrieved 2014-10-17.
  2. ^ "Oenothera glazioviana". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 29 January 2016.

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