[powo.science.kew.org] Range, Hybrid Info: The native range of this hybrid is California. It is a shrub or tree and grows primarily in the temperate biome. The hybrid formula is Q. dumosa × Q. garryana. (link added by Mary Ann Machi)
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: 04/09/2025).