Populus fremontii Calflora

Populus fremontii S. Watson

Alamo cottonwood, Arizona cottonwood

Populus fremontii is a tree that is native to California, and also found elsewhere in western North America.

Record Count by County


Alameda: 54	Lake: 14	Plumas: 1	Siskiyou: 4
Amador: 7	Lassen: 10	Riverside: 292	Solano: 66
Butte: 224	Los Angeles: 230	Sacramento: 341	Sonoma: 55
Calaveras: 10	Madera: 92	San Benito: 278	Stanislaus: 105
Colusa: 103	Marin: 2	San Bernardino: 146	Sutter: 95
Contra Costa: 47	Mariposa: 7	San Diego: 294	Tehama: 141
El Dorado: 37	Mendocino: 15	San Joaquin: 71	Trinity: 34
Fresno: 316	Merced: 64	San Luis Obispo: 72	Tulare: 102
Glenn: 102	Mono: 30	San Mateo: 10	Tuolumne: 6
Humboldt: 4	Monterey: 27	Santa Barbara: 144	Ventura: 191
Imperial: 22	Napa: 18	Santa Clara: 52	Yolo: 108
Inyo: 92	Nevada: 39	Santa Cruz: 8	Yuba: 101
Kern: 162	Orange: 77	Shasta: 76
Kings: 16	Placer: 45	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: 12/13/2025).