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Taxon  Report  
Quercus kelloggii  Newb.
Black oak,   California black oak
Quercus kelloggii is a tree that is native to California, and also found elsewhere in western North America.
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Bloom Period
Genus: Quercus
Family: Fagaceae  
Category: angiosperm  
PLANTS group:Dicot
Jepson eFlora section: eudicot

Toxicity: Do not eat the fruit or leaf of this plant.

Communities: Yellow Pine Forest, Mixed Evergreen Forest, Northern Oak Woodland

Name Status:
Accepted by JEF + PLANTS + POWO
Alternate Names:
PLANTSQuercus californica
OTHERQuercus tinctoria var. californica
Information about  Quercus kelloggii from other sources
Nursery availability from CNPLX
This plant is available commercially.
Jepson eFlora

USDA PLANTS Profile (QUKE)

Photos on Calflora

Photos on CalPhotos

Google Images

Photos on iNaturalist

ID Tips on PlantID.net

[Wikipedia] Ecology: The California black oak is a critical species for wildlife. Oaks (Quercus spp.) may be the single most important genus used by wildlife for food and cover in California forests and rangelands,[7] and California black oak occupies more total area in California than any other hardwood species. Livestock also make heavy use of this species for food and cover. (link added by Mary Ann Machi)


Suggested Citation
Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals. [web application]. 2025. The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 07/15/2025).