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 Mariposa: 11 Riverside: 40 Shasta: 2
Amador: 4 Mendocino: 2 Sacramento: 6 Sierra: 1
Butte: 14 Merced: 4 San Bernardino: 51 Sutter: 1
El Dorado: 8 Mono: 35 San Diego: 163 Tehama: 2
Fresno: 3 Monterey: 2 San Francisco: 1 Trinity: 1
Inyo: 28 Napa: 1 San Joaquin: 3 Tulare: 6
Kern: 6 Nevada: 4 San Luis Obispo: 11 Ventura: 38
Lassen: 4 Orange: 42 San Mateo: 1 Yolo: 2
Los Angeles: 41 Placer: 5 Santa Barbara: 28 Yuba: 3
Madera: 1 Plumas: 13 Santa Cruz: 5

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: 11/21/2024).