Calflora, a 501c3 non-profit
Distribution by County   60    
Acer negundo  L.  var. californicum  (Torr. & A. Gray) Sarg.

(not an active name)
Box elder,   California box elder
Acer negundo var. californicum is a tree that is native to California, and endemic (limited) to California.
also called Acer negundo
Record Count by County

Alameda: 16 Marin: 18 San Benito: 1 Siskiyou: 6
Butte: 11 Mendocino: 12 San Bernardino: 18 Solano: 5
Colusa: 2 Merced: 2 San Diego: 13 Sonoma: 12
Contra Costa: 9 Modoc: 2 San Francisco: 1 Stanislaus: 3
El Dorado: 2 Monterey: 9 San Joaquin: 2 Sutter: 7
Glenn: 3 Napa: 2 San Luis Obispo: 8 Tehama: 3
Humboldt: 1 Nevada: 1 San Mateo: 12 Ventura: 2
Inyo: 1 Orange: 1 Santa Barbara: 9 Yolo: 1
Kern: 10 Plumas: 2 Santa Clara: 9 Yuba: 1
Lake: 2 Riverside: 11 Santa Cruz: 16
Los Angeles: 15 Sacramento: 13 Shasta: 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]. 2026. The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 01/14/2026).