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Taxon  Report  
Juglans californica  S. Watson
Southern black walnut,   Southern california walnut,   Southern california black walnut
Juglans californica is a tree that is native to California, and endemic (limited) to California.
California Rare Plant Rank: 4.2 (limited distribution).
Siskiyou Del Norte Modoc Humboldt Shasta Lassen Trinity Plumas Tehama Butte Mendocino Glenn Sierra Yuba Lake Nevada Colusa Placer Sutter El Dorado Yolo Alpine Napa Sonoma Sacramento Mono Amador Solano Calaveras Tuolumne San Joaquin Marin Contra Costa Alameda Santa Cruz Mariposa Madera San Francisco San Mateo Merced Fresno Stanislaus Santa Clara Inyo San Benito Tulare Kings Monterey San Bernardino San Luis Obispo Kern Santa Barbara Ventura Los Angeles Riverside Orange San Diego Imperial
Observation Search
(1524 records)
yellowone or more occurrences
within a 7.5-minute quadrangle
DJJJASONAFMM

Bloom Period
Genus: Juglans
Family: Juglandaceae  
Category: angiosperm  
PLANTS group:Dicot
Jepson eFlora section: eudicot

Toxicity: Possible skin irritation from touching the sap of this plant.

Wetlands: Occurs usually in non wetlands, occasionally in wetlands

Communities: Southern Oak Woodland, wetland-riparian

Name Status:
Accepted by JEF + CNPS + PLANTS
Alternate Names:
PLANTSJuglans Xquercifolia
JEF + CNPS + PLANTSJuglans californica var. californica
PLANTSJuglans californica var. quercina
Information about  Juglans californica from other sources
Nursery availability from CNPLX
This plant is available commercially.
Jepson eFlora

USDA PLANTS Profile (JUCA)

Photos on Calflora

Photos on CalPhotos

Google Images

Photos on iNaturalist

ID Tips on PlantID.net


Suggested Citation
Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals. [web application]. 2023. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 12/06/2023).