Evening primrose
Oenothera parviflora L.

Oenothera parviflora, known as the northern evening primrose, is a flowering plant in the family Onagraceae. It is native to northeastern North America and has become invasive in Europe, Asia, South Africa, and New Zealand. The species was first described in 1759.
Description
Oenothera parviflora is a member of the Onagraceae family and is commonly called evening primrose. It is found in regions such as Newfoundland, Manitoba, New Brunswick, Nova Scotia, Ontario, Prince Edward Island, Quebec, Saskatchewan, Saint Pierre and Miquelon, as well as parts of Europe including Belgium, the Flemish and Walloon Regions, France, the Netherlands, Great Britain, and other areas. The species has spread beyond its native range and is considered invasive in several regions outside northeastern North America.
Other common names
Least Evening-PrimroseNorthern Evening PrimroseNorthern Evening-PrimroseSmall-Flowered Evening-PrimroseEvening primrose
Distribution
Newfoundland · Manitoba · New Brunswick · Nova Scotia · Ontario · Prince Edward Island · Quebec · Saskatchewan · Saint Pierre and Miquelon · ZA · Belgium · Flemish Region · Walloon Region · France · The Netherlands · Great Britain · IT · FR · GR · Austria · Luxembourg · Bulgaria · Corse (Corsica) · Czech Republic · Slovakia · Germany · Italy · Netherlands · Poland · Romania
Synonyms
Oenothera biformifloraOenothera deflexaOenothera issleriOenothera laevigataOenothera lipsiensisOenothera comosaOenothera cleistanthaOenothera apicabortaOenothera angustifoliaOenothera atrovirensOnagra chrysanthaOenothera venosaOenothera pachycarpaOenothera novae-scotiaeOenothera silesiacaOenothera rubricapitataOenothera robinsoniiOenothera biennis var. parvifloraOenothera cruciataOenothera parviflora f. parvifloraOenothera cruciata var. cruciataOenothera parviflora var. parvifloraOenothera angustissimaOnagra parvifloraOenothera biennis var. cruciataOnagra biennis var. cruciataOnagra cruciataOenothera flecticaulisOenothera ammophiloides var. flecticaulisOenothera hazeliae