Calflora, a 501c3 non-profit
Distribution by County   5896    
Oenothera elata  Kunth  ssp. hirsutissima  (S. Watson) W. Dietr.
Evening primrose,   Hairy evening primrose,   Hooker's evening primrose
Oenothera elata ssp. hirsutissima is a perennial herb that is native to California, and also found elsewhere in western North America.
Record Count by County

Alpine: 10 Mendocino: 2 Sacramento: 6 Siskiyou: 8
Amador: 5 Merced: 6 San Bernardino: 51 Sutter: 1
Butte: 14 Modoc: 10 San Diego: 162 Tehama: 2
El Dorado: 8 Mono: 34 San Francisco: 1 Trinity: 1
Fresno: 3 Monterey: 2 San Joaquin: 6 Tulare: 6
Inyo: 27 Napa: 1 San Luis Obispo: 11 Ventura: 39
Kern: 6 Nevada: 4 San Mateo: 1 Yolo: 2
Lassen: 4 Orange: 38 Santa Barbara: 27 Yuba: 3
Los Angeles: 41 Placer: 4 Santa Cruz: 5
Madera: 1 Plumas: 13 Shasta: 3
Mariposa: 11 Riverside: 40 Sierra: 1

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: 04/25/2024).