Calflora, a 501c3 non-profit
Distribution by County   5897    
Oenothera elata  Kunth  ssp. hookeri  (Torr. & A. Gray) W. Dietr. & W. L. Wagner
Common evening primrose,   Evening primrose,   Hooker's evening primrose
Oenothera elata ssp. hookeri is a perennial herb that is native to California, and also found elsewhere in western North America.
Record Count by County

Alameda: 9 Lassen: 3 Napa: 1 San Luis Obispo: 34
Butte: 2 Los Angeles: 34 Orange: 6 San Mateo: 76
Calaveras: 1 Madera: 1 Placer: 1 Santa Barbara: 14
Colusa: 1 Marin: 10 Riverside: 5 Santa Clara: 3
Contra Costa: 16 Mariposa: 5 Sacramento: 2 Santa Cruz: 14
Fresno: 1 Mendocino: 5 San Bernardino: 4 Shasta: 2
Glenn: 1 Merced: 1 San Diego: 41 Solano: 1
Inyo: 1 Mono: 1 San Francisco: 18 Sonoma: 3
Kern: 6 Monterey: 28 San Joaquin: 1 Ventura: 11

Suggested Citation
Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals, including the Consortium of California Herbaria. [web application]. 2024. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 12/03/2024).