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Quercus kelloggii
Also called Kellogg oak
A large deciduous oak of western North America that grows as a shade tree in foothills and lower mountains, often reaching 9 to 25 m. It is a cold-hardy, drought-tolerant tree that needs well-drained soil and room to spread.
Quercus kelloggii, the California black oak or Kellogg oak, is an oak in the red oak section (genus Quercus, section Lobatae, series Agrifoliae) native to western North America.
California black oak is a deciduous tree growing in mixed evergreen forests, oak woodlands, and coniferous forests. California black oak is distributed along foothills and lower mountains of California and western Oregon. It can be found at elevations of up to 1,800 m (5,900 ft), for example near Mount Shasta.
Some California Native Americans prefer California black oak acorns over those of other species for making acorn meal. Historically, this acorn was a staple food for many Native American groups, who usually leached out the bitter tannin. Native Americans recognized the importance of fire to this oak, and purposely lit fires in oak woodlands to promote its health and ensure their food source.
Quercus affinis · Coast Live Oak · White Oak · Golden Oak · Scrub oak · Brant's oak · Turkey Oak · Canyon Live Oak · Scarlet Oak · Daimyo oak · Blue oak · Leather oak
Text excerpted from the Wikipedia article Quercus kelloggii by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
