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BC Conservation Data Centre: Species Summary


Oenothera biennis
common evening-primrose


 
Scientific Name: Oenothera biennis L.
English Name: common evening-primrose
 
Classification / Taxonomy
Scientific Name - Concept Reference: Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
Classification Level: Species
Species Group: Vascular Plant
Species Code: OENOBIE
Kingdom Phylum Class Order Family
Plantae Anthophyta Dicotyledoneae Myrtales Onagraceae
   
Conservation Status / Legal Designation
Global Status: G5 (May 2024)
Provincial Status: SNA (Apr 2019)
BC List: Exotic
Provincial FRPA list:   
Provincial Wildlife Act:
COSEWIC Status:
SARA Schedule:
General Status Canada: 4 - Secure (2010)
   
Ecology & Life History
General Description:
Technical Description:
Similar Species:
Habitats:
(Type / Subtype / Dependence)
Global Habitat Comments: Oenothera biennis grows in "open, disturbed sites," including "fields, pastures, roadsides" (FNA 2021, Weakley and the Southeastern Flora Team 2024).
Provincial Phenology:
(1st half of month/
2nd half of month)
Elevation (m) (min / max): Provincial: 
Known Pests:
Pollen Vector:
Pollinator:
Dispersal:
   
 
Provincial Inventory
Inventory Priority:
Ownership of occurrences (Known locations):
Inventory Need:
 
Economic Attributes
 
Distribution
Endemic: N
Global Range Comment: Oenothera biennis occurs nearly worldwide in temperate and subtropical regions (FNA 2021). Its native range includes North America from Nova Scotia west to Alberta in Canada south to Florida west to California in the United States, and Mexico and Europe, and it has been introduced in Africa, Asia, Europe, and South America.
Disjunct, more common elsewhere:
Peripheral, major distribution elsewhere:
 
Authors / Contributors
Global Information Author: Soteropoulos (2024)
Last Updated: May 27, 2024
Provincial Information Author:
Last Updated:
Last Literature Search:
   
References and Related Literature
Flora of North America Editorial Committee (FNA). 2021. Flora of North America north of Mexico. Vol. 10. Magnoliophyta: Proteaceae to Elaeagnaceae. Oxford Univ. Press, New York. xxiv + 456 pp.
Weakley, A.S., and Southeastern Flora Team. 2024. Flora of the southeastern United States. Edition of March 4, 2024. University of North Carolina Herbarium (NCU), North Carolina Botanical Garden, University of North Carolina, Chapel Hill. 2203 pp.
 

Please visit the website Conservation Status Ranks for definitions of the data fields used in this summary report.

Suggested Citation:

B.C. Conservation Data Centre. 2024. Species Summary: Oenothera biennis. B.C. Minist. of Environment. Available: https://a100.gov.bc.ca/pub/eswp/ (accessed Oct 7, 2026).