logo Calflora, a 501c3 non-profit
Taxon  Report  
Quercus lobata  Née
California white oak,   Valley oak
Quercus lobata is a tree that is native to California, and endemic (limited) to California.
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
DJJJASONAFMM

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.

Wetlands: Occurs usually in non wetlands, occasionally in wetlands

Habitat: slopes

Communities: Foothill Woodland

Name Status:
Accepted by JEF + PLANTS

Alternate Names:
PLANTSQuercus hindsii
JEFQuercus lobata f. insperata
JEFQuercus lobata f. rarita
PLANTSQuercus lobata var. argillara
PLANTSQuercus lobata var. insperata
...
Information about  Quercus lobata from other sources
Nursery availability from CNPLX
This plant is available commercially.
Jepson eFlora

USDA PLANTS Profile (QULO)

Photos on Calflora

Photos on CalPhotos

Google Images

Photos on iNaturalist

ID Tips on PlantID.net

[wikipedia] Range, Age, Water Requirements, Bark Description: Quercus lobata, commonly called the valley oak or roble, grows into the largest of California oaks. It is endemic to California, growing in interior valleys and foothills from Siskiyou County to San Diego County.[4] Mature specimens may attain an age of up to 600 years. This deciduous oak requires year-round access to groundwater.[5][6] Its thick, ridged bark is characteristic and resembles alligator hide. The valley oak's deeply lobed leaves assist in identification. (contributed 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]. 2023. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 12/06/2023).