Calflora, a 501c3 non-profit
Distribution by County   12805    
Populus deltoides  Bartram ex Marsh.

(not an active name)
Eastern cottonwood
Populus deltoides is a tree that is not native to California.
Record Count by County

Alameda: 26 Lake: 7 Riverside: 55 Siskiyou: 3
Amador: 1 Lassen: 1 Sacramento: 22 Solano: 12
Butte: 41 Los Angeles: 79 San Benito: 77 Sonoma: 7
Calaveras: 1 Madera: 3 San Bernardino: 50 Stanislaus: 4
Colusa: 5 Mariposa: 2 San Diego: 177 Sutter: 4
Contra Costa: 23 Mendocino: 7 San Joaquin: 2 Tehama: 18
El Dorado: 1 Merced: 8 San Luis Obispo: 39 Trinity: 2
Fresno: 9 Mono: 10 San Mateo: 7 Tulare: 14
Glenn: 5 Monterey: 15 Santa Barbara: 127 Ventura: 140
Humboldt: 4 Napa: 6 Santa Clara: 13 Yolo: 9
Imperial: 9 Nevada: 7 Santa Cruz: 5 Yuba: 3
Inyo: 30 Orange: 19 Shasta: 12
Kern: 34 Placer: 5 Sierra: 2

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]. 2025. The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 12/14/2025).