Calflora
Taxon  Report   4428    
Juglans californica  S. Watson
Southern black walnut,  Southern california black walnut, Southern california walnut
Juglans californica
© 2003 Michael Charters
Photos from
CalPhotos / Calflora
Juglans californica
© 2018 Ron Vanderhoff
Juglans californica
© 2016 Aaron Echols
Juglans californica, a dicot, is a tree that is native to California, is endemic (limited) to California.
CNPS Rare Plant Rank: 4.2 (limited distribution).   8th Edition

Interactive Distribution Map


Observation Hotline
(observation details)



point, line, or polygon

one or more occurrences
within a 7.5-minute quadrangle

Plant Characteristics
and Associations



Bloom Period
Juglans californica
© 2015 Brett Bigelow
Family: JUGLANDACEAE  
Genus: Juglans
Communities: Southern Oak Woodland, wetland-riparian

Toxicity: DERMATITIS

Wetlands: Occurs usually in non wetlands, occasionally in wetlands

Name Status:
Accepted by JEF + CNPS + PLANTS

Alternate Names:
PLANTS: Juglans californica var. quercina
ICPN + CNPS + PLANTS: Juglans californica var. californica
More information about  Juglans californica
Nursery / seed vendor availability from CNPLX
This plant is available commercially.
Landscaping information from Calscape
Photos on PlantID.net   /   Google Images
Jepson eFlora

Records from the Consortium of California Herbaria

ITIS Original Publication citation

USDA PLANTS Profile (JUCA)

Search the International Plants Names Index

Search efloras.org (Flora of North America)

website references from Google


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]. 2018. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: Dec 15, 2018).