Calflora, a 501c3 non-profit
Distribution by County   11946    
Populus trichocarpa  Torr. & A. Gray ex Hook.
Black cottonwood
Populus trichocarpa is a tree that is native to California, and also found elsewhere in North America and beyond.
Record Count by County

Alameda: 13 Kern: 9 Nevada: 15 Santa Barbara: 188
Alpine: 21 Lake: 4 Orange: 65 Santa Clara: 26
Butte: 8 Lassen: 8 Placer: 50 Santa Cruz: 41
Calaveras: 1 Los Angeles: 121 Plumas: 61 Shasta: 22
Colusa: 1 Madera: 2 Riverside: 16 Sierra: 41
Contra Costa: 3 Marin: 1 Sacramento: 1 Siskiyou: 3
Del Norte: 1 Mariposa: 11 San Benito: 2 Tehama: 3
El Dorado: 18 Mendocino: 10 San Bernardino: 63 Trinity: 23
Fresno: 47 Modoc: 11 San Diego: 36 Tulare: 70
Humboldt: 43 Mono: 70 San Luis Obispo: 59 Tuolumne: 9
Inyo: 55 Monterey: 59 San Mateo: 25 Ventura: 145

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: 11/23/2024).